/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=NARROWEST --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_lcr.5.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 13:25:50,057 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 13:25:50,059 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 13:25:50,083 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 13:25:50,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 13:25:50,084 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 13:25:50,085 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 13:25:50,087 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 13:25:50,089 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 13:25:50,089 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 13:25:50,090 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 13:25:50,091 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 13:25:50,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 13:25:50,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 13:25:50,094 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 13:25:50,095 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 13:25:50,095 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 13:25:50,096 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 13:25:50,098 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 13:25:50,099 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 13:25:50,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 13:25:50,102 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 13:25:50,103 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 13:25:50,103 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 13:25:50,106 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 13:25:50,106 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 13:25:50,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 13:25:50,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 13:25:50,107 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 13:25:50,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 13:25:50,108 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 13:25:50,109 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 13:25:50,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 13:25:50,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 13:25:50,111 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 13:25:50,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 13:25:50,112 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 13:25:50,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 13:25:50,113 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 13:25:50,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 13:25:50,114 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 13:25:50,115 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 [2020-10-13 13:25:50,138 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 13:25:50,139 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 13:25:50,140 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 13:25:50,140 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 13:25:50,140 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 13:25:50,141 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 13:25:50,141 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 13:25:50,141 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 13:25:50,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 13:25:50,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 13:25:50,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 13:25:50,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 13:25:50,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 13:25:50,142 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 13:25:50,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 13:25:50,142 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 13:25:50,143 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 13:25:50,143 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 13:25:50,143 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 13:25:50,143 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 13:25:50,143 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 13:25:50,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 13:25:50,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 13:25:50,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 13:25:50,144 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 13:25:50,144 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 13:25:50,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 13:25:50,145 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 13:25:50,145 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 13:25:50,145 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 13:25:50,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 13:25:50,491 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 13:25:50,495 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 13:25:50,497 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 13:25:50,497 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 13:25:50,498 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.5.ufo.UNBOUNDED.pals.c [2020-10-13 13:25:50,576 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/403170a58/9f79b692d2b5493388adbbd90a7393e2/FLAG87df2ff01 [2020-10-13 13:25:51,060 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 13:25:51,062 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.5.ufo.UNBOUNDED.pals.c [2020-10-13 13:25:51,076 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/403170a58/9f79b692d2b5493388adbbd90a7393e2/FLAG87df2ff01 [2020-10-13 13:25:51,453 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/403170a58/9f79b692d2b5493388adbbd90a7393e2 [2020-10-13 13:25:51,461 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 13:25:51,463 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 13:25:51,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 13:25:51,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 13:25:51,468 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 13:25:51,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:25:51" (1/1) ... [2020-10-13 13:25:51,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@625d319a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:51, skipping insertion in model container [2020-10-13 13:25:51,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:25:51" (1/1) ... [2020-10-13 13:25:51,480 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 13:25:51,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 13:25:51,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:25:51,882 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 13:25:51,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:25:51,953 INFO L208 MainTranslator]: Completed translation [2020-10-13 13:25:51,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:51 WrapperNode [2020-10-13 13:25:51,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 13:25:51,954 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 13:25:51,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 13:25:51,955 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 13:25:51,969 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:51" (1/1) ... [2020-10-13 13:25:51,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:51" (1/1) ... [2020-10-13 13:25:51,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:51" (1/1) ... [2020-10-13 13:25:51,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:51" (1/1) ... [2020-10-13 13:25:52,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:51" (1/1) ... [2020-10-13 13:25:52,013 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:51" (1/1) ... [2020-10-13 13:25:52,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:51" (1/1) ... [2020-10-13 13:25:52,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 13:25:52,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 13:25:52,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 13:25:52,022 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 13:25:52,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:51" (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 [2020-10-13 13:25:52,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 13:25:52,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 13:25:52,093 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 13:25:52,093 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-13 13:25:52,093 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-13 13:25:52,093 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-13 13:25:52,093 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-13 13:25:52,094 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-13 13:25:52,094 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-13 13:25:52,094 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-13 13:25:52,094 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 13:25:52,094 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-13 13:25:52,094 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 13:25:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 13:25:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-13 13:25:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-13 13:25:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-13 13:25:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 13:25:52,095 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 13:25:52,096 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-13 13:25:52,096 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-13 13:25:52,096 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-13 13:25:52,096 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-13 13:25:52,096 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-13 13:25:52,096 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-13 13:25:52,097 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-13 13:25:52,097 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-13 13:25:52,097 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-13 13:25:52,097 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 13:25:52,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 13:25:52,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 13:25:52,743 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 13:25:52,743 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 13:25:52,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:25:52 BoogieIcfgContainer [2020-10-13 13:25:52,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 13:25:52,758 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 13:25:52,758 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 13:25:52,762 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 13:25:52,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:25:51" (1/3) ... [2020-10-13 13:25:52,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67bd0582 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:25:52, skipping insertion in model container [2020-10-13 13:25:52,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:51" (2/3) ... [2020-10-13 13:25:52,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67bd0582 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:25:52, skipping insertion in model container [2020-10-13 13:25:52,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:25:52" (3/3) ... [2020-10-13 13:25:52,768 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.UNBOUNDED.pals.c [2020-10-13 13:25:52,780 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 13:25:52,791 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 13:25:52,807 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 13:25:52,847 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 13:25:52,847 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 13:25:52,847 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 13:25:52,848 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 13:25:52,848 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 13:25:52,849 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 13:25:52,849 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 13:25:52,849 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 13:25:52,878 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states. [2020-10-13 13:25:52,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-13 13:25:52,888 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:25:52,889 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] [2020-10-13 13:25:52,890 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:25:52,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:25:52,895 INFO L82 PathProgramCache]: Analyzing trace with hash -416727663, now seen corresponding path program 1 times [2020-10-13 13:25:52,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:25:52,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [781956046] [2020-10-13 13:25:52,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:25:53,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:53,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:53,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:53,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-13 13:25:53,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:53,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 398 [2020-10-13 13:25:53,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:53,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:53,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-13 13:25:53,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:53,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:25:53,764 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:25:53,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:25:53,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:53,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:53,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:53,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:25:53,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:53,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 13:25:53,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:53,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:53,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:53,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:53,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:53,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:25:53,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:53,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:53,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:53,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:25:53,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:53,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:25:53,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:53,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:53,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:53,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:53,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:53,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-13 13:25:53,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:53,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:53,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:53,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:25:53,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:53,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:25:53,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:53,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:53,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:25:53,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:53,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:53,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-13 13:25:53,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:53,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:53,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:53,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:53,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:53,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:25:53,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:53,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:53,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:25:53,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:53,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:53,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 13:25:53,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:53,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:53,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:53,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:53,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:53,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:25:53,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:53,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:53,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:25:53,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:53,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:53,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 13:25:53,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:53,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:53,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:53,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:53,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:53,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:25:53,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:53,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:53,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:25:53,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:53,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:53,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:25:53,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:53,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:53,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:53,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:53,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:53,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:25:53,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:53,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:53,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:25:53,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:53,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:54,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-13 13:25:54,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:54,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:54,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:54,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:54,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:54,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:25:54,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:54,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:54,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:25:54,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:54,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:54,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:25:54,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:54,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:54,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:54,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:25:54,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:54,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:25:54,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:54,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:54,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:25:54,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:54,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:54,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:25:54,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [781956046] [2020-10-13 13:25:54,056 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:25:54,056 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 13:25:54,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076215862] [2020-10-13 13:25:54,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 13:25:54,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:25:54,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 13:25:54,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-13 13:25:54,082 INFO L87 Difference]: Start difference. First operand 131 states. Second operand 8 states. [2020-10-13 13:25:55,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:25:55,230 INFO L93 Difference]: Finished difference Result 212 states and 312 transitions. [2020-10-13 13:25:55,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 13:25:55,234 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-10-13 13:25:55,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:25:55,259 INFO L225 Difference]: With dead ends: 212 [2020-10-13 13:25:55,260 INFO L226 Difference]: Without dead ends: 127 [2020-10-13 13:25:55,265 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:25:55,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-10-13 13:25:55,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 126. [2020-10-13 13:25:55,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-13 13:25:55,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 188 transitions. [2020-10-13 13:25:55,365 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 188 transitions. Word has length 67 [2020-10-13 13:25:55,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:25:55,366 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 188 transitions. [2020-10-13 13:25:55,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 13:25:55,367 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 188 transitions. [2020-10-13 13:25:55,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-13 13:25:55,374 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:25:55,375 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] [2020-10-13 13:25:55,375 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 13:25:55,377 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:25:55,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:25:55,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1121612367, now seen corresponding path program 1 times [2020-10-13 13:25:55,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:25:55,378 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1902843643] [2020-10-13 13:25:55,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:25:55,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:55,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:56,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:56,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-13 13:25:56,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:56,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 658 [2020-10-13 13:25:56,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:56,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:25:56,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 13:25:56,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:25:56,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:56,269 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:25:56,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:25:56,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:56,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:56,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:56,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:25:56,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:56,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:25:56,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:56,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:56,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:56,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:56,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:25:56,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:25:56,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:56,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:56,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:56,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:25:56,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:56,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:25:56,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:56,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:25:56,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:25:56,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:25:56,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:25:56,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-13 13:25:56,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:56,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:56,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:56,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:25:56,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:56,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:25:56,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:56,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:25:56,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:25:56,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:25:56,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:25:56,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-13 13:25:56,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:56,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:56,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:56,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:56,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:56,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:25:56,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:56,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:56,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:25:56,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:56,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:56,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 13:25:56,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:56,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:56,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:56,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:56,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:56,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:25:56,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:56,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:56,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:25:56,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:56,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:56,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 13:25:56,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:56,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:56,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:56,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:56,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:56,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:25:56,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:56,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:56,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:25:56,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:56,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:56,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:25:56,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:56,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:56,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:56,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:56,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:56,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:25:56,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:56,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:56,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:25:56,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:56,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:56,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-13 13:25:56,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:56,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:56,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:56,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:25:56,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:56,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:25:56,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:56,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:56,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:25:56,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:56,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:56,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:25:56,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:56,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:56,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:25:56,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:25:56,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:25:56,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:25:56,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:25:56,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:25:56,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:25:56,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:25:56,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:25:56,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:25:56,631 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1902843643] [2020-10-13 13:25:56,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:25:56,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-13 13:25:56,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946907580] [2020-10-13 13:25:56,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 13:25:56,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:25:56,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 13:25:56,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-13 13:25:56,635 INFO L87 Difference]: Start difference. First operand 126 states and 188 transitions. Second operand 14 states. [2020-10-13 13:25:56,829 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:25:57,000 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:25:57,243 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 13:25:57,409 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:25:58,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:25:58,831 INFO L93 Difference]: Finished difference Result 210 states and 304 transitions. [2020-10-13 13:25:58,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 13:25:58,832 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 67 [2020-10-13 13:25:58,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:25:58,834 INFO L225 Difference]: With dead ends: 210 [2020-10-13 13:25:58,835 INFO L226 Difference]: Without dead ends: 127 [2020-10-13 13:25:58,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-13 13:25:58,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-10-13 13:25:58,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 126. [2020-10-13 13:25:58,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-13 13:25:58,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 157 transitions. [2020-10-13 13:25:58,856 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 157 transitions. Word has length 67 [2020-10-13 13:25:58,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:25:58,857 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 157 transitions. [2020-10-13 13:25:58,857 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 13:25:58,857 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 157 transitions. [2020-10-13 13:25:58,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-13 13:25:58,859 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:25:58,859 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] [2020-10-13 13:25:58,860 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 13:25:58,860 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:25:58,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:25:58,860 INFO L82 PathProgramCache]: Analyzing trace with hash -1437028090, now seen corresponding path program 1 times [2020-10-13 13:25:58,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:25:58,861 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [461792219] [2020-10-13 13:25:58,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:25:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:25:58,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:25:59,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:00,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:00,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-13 13:26:00,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:26:00,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1866 [2020-10-13 13:26:00,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:00,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:26:00,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 13:26:00,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 13:26:00,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:26:00,974 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:26:00,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:26:00,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:00,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:01,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:01,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:26:01,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:01,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 13:26:01,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:01,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:01,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:01,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:01,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:01,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:26:01,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:01,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:01,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:01,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 13:26:01,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:01,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 13:26:01,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:01,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:01,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:01,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:26:01,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:01,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 13:26:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:01,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:01,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:01,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:26:01,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:01,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:26:01,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:01,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:01,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:01,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:26:01,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:01,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 13:26:01,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:01,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:01,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:01,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:01,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:01,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:26:01,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:01,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:01,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:01,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:01,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:01,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:26:01,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:01,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:01,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:01,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:01,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:01,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 13:26:01,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:01,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:01,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:01,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:01,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:01,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 13:26:01,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:01,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:01,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:01,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:01,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:01,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 13:26:01,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:01,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:26:01,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:26:01,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:26:01,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:01,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:26:01,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:01,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:01,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:01,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:01,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:01,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:26:01,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:01,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:01,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:01,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:01,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:01,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-13 13:26:01,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:01,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:01,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:01,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:01,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:01,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:26:01,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:01,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:01,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:01,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:01,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:01,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 13:26:01,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:01,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:01,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:01,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:26:01,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:01,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:26:01,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:01,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:01,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:26:01,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:01,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:01,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:26:01,391 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [461792219] [2020-10-13 13:26:01,391 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:26:01,391 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:26:01,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256943609] [2020-10-13 13:26:01,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:26:01,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:26:01,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:26:01,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:26:01,394 INFO L87 Difference]: Start difference. First operand 126 states and 157 transitions. Second operand 11 states. [2020-10-13 13:26:03,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:26:03,468 INFO L93 Difference]: Finished difference Result 276 states and 367 transitions. [2020-10-13 13:26:03,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 13:26:03,469 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 97 [2020-10-13 13:26:03,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:26:03,474 INFO L225 Difference]: With dead ends: 276 [2020-10-13 13:26:03,474 INFO L226 Difference]: Without dead ends: 199 [2020-10-13 13:26:03,476 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-10-13 13:26:03,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2020-10-13 13:26:03,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 195. [2020-10-13 13:26:03,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-10-13 13:26:03,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 254 transitions. [2020-10-13 13:26:03,522 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 254 transitions. Word has length 97 [2020-10-13 13:26:03,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:26:03,525 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 254 transitions. [2020-10-13 13:26:03,525 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:26:03,525 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 254 transitions. [2020-10-13 13:26:03,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-13 13:26:03,532 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:26:03,533 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] [2020-10-13 13:26:03,533 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 13:26:03,533 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:26:03,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:26:03,534 INFO L82 PathProgramCache]: Analyzing trace with hash -988803076, now seen corresponding path program 1 times [2020-10-13 13:26:03,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:26:03,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1278934701] [2020-10-13 13:26:03,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:26:03,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:03,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:04,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:04,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-13 13:26:04,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:04,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1200 [2020-10-13 13:26:04,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:04,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-13 13:26:04,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 13:26:04,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-13 13:26:04,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:04,980 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:26:04,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:26:04,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:04,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:04,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:04,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:26:04,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:04,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:26:04,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:04,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:04,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:04,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:04,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:05,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:26:05,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:05,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:05,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:05,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 13:26:05,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:05,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-13 13:26:05,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:05,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:26:05,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:05,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 13:26:05,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:05,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 13:26:05,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:05,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:05,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:05,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:26:05,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:05,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:26:05,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:05,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:05,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:05,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:26:05,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:05,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 13:26:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:05,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:05,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:05,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:05,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:05,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 13:26:05,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:05,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:26:05,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:26:05,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:26:05,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:05,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:26:05,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:05,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:05,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:05,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:05,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:05,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:26:05,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:05,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:26:05,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:26:05,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:26:05,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:05,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 13:26:05,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:05,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:05,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:05,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:05,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:05,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 13:26:05,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:05,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:26:05,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:26:05,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:26:05,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:05,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:26:05,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:05,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:05,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:05,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:05,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:05,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 13:26:05,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:05,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:26:05,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:26:05,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:26:05,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:05,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-13 13:26:05,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:05,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:05,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:05,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:05,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:05,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 13:26:05,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:05,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:26:05,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:26:05,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:26:05,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:05,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 13:26:05,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:05,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:05,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:05,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:26:05,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:05,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:26:05,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:05,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:05,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:26:05,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:26:05,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:05,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:26:05,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1278934701] [2020-10-13 13:26:05,515 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:26:05,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-10-13 13:26:05,516 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666662888] [2020-10-13 13:26:05,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-13 13:26:05,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:26:05,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-13 13:26:05,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2020-10-13 13:26:05,519 INFO L87 Difference]: Start difference. First operand 195 states and 254 transitions. Second operand 20 states. [2020-10-13 13:26:05,692 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:26:05,832 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:26:05,989 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:26:06,131 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:26:06,267 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:26:08,806 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:26:08,945 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:26:09,079 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:26:09,248 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:26:13,305 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:26:16,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:26:16,343 INFO L93 Difference]: Finished difference Result 1885 states and 2644 transitions. [2020-10-13 13:26:16,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2020-10-13 13:26:16,344 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 97 [2020-10-13 13:26:16,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:26:16,363 INFO L225 Difference]: With dead ends: 1885 [2020-10-13 13:26:16,363 INFO L226 Difference]: Without dead ends: 1739 [2020-10-13 13:26:16,375 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4073 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=2105, Invalid=9451, Unknown=0, NotChecked=0, Total=11556 [2020-10-13 13:26:16,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1739 states. [2020-10-13 13:26:16,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1739 to 1697. [2020-10-13 13:26:16,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1697 states. [2020-10-13 13:26:16,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 2377 transitions. [2020-10-13 13:26:16,575 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 2377 transitions. Word has length 97 [2020-10-13 13:26:16,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:26:16,577 INFO L479 AbstractCegarLoop]: Abstraction has 1697 states and 2377 transitions. [2020-10-13 13:26:16,577 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-13 13:26:16,577 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 2377 transitions. [2020-10-13 13:26:16,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-13 13:26:16,580 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:26:16,581 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] [2020-10-13 13:26:16,581 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 13:26:16,581 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:26:16,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:26:16,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1454972724, now seen corresponding path program 1 times [2020-10-13 13:26:16,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:26:16,582 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1432015384] [2020-10-13 13:26:16,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:26:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:16,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:16,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:17,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:17,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:17,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-13 13:26:17,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:26:17,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 933 [2020-10-13 13:26:17,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:17,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:17,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 111 [2020-10-13 13:26:17,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 13:26:17,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:17,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:26:17,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:17,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:17,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:17,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:26:17,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:17,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:26:17,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:17,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:17,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:17,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:17,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:17,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:26:17,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:17,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:17,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:17,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 13:26:17,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:17,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:26:17,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:17,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:17,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:17,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:17,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:17,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 13:26:17,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:17,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:17,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:17,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:26:17,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:17,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:26:17,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:17,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:17,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:17,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:17,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:17,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 13:26:17,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:17,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:17,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:17,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:17,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:17,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:26:17,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:17,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:17,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:17,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:17,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:17,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:26:17,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:17,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:17,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:17,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:17,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:17,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:26:17,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:17,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:17,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:17,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:17,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:17,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 13:26:17,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:17,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:17,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:17,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:17,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:17,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:26:17,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:17,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:17,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:17,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:17,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:17,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:26:17,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:17,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:17,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:17,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:17,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:17,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:26:17,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:17,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:17,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:17,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:17,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:17,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-13 13:26:17,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:17,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:17,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:17,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:17,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:17,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:26:17,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:17,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:17,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:17,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:17,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:17,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 13:26:17,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:17,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:17,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:17,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:26:17,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:17,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:26:17,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:17,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:17,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 13:26:17,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 13:26:17,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:17,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:26:17,893 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1432015384] [2020-10-13 13:26:17,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:26:17,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 13:26:17,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47246045] [2020-10-13 13:26:17,896 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 13:26:17,897 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:26:17,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 13:26:17,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-13 13:26:17,898 INFO L87 Difference]: Start difference. First operand 1697 states and 2377 transitions. Second operand 9 states. [2020-10-13 13:26:18,815 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:26:19,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:26:19,757 INFO L93 Difference]: Finished difference Result 4889 states and 6905 transitions. [2020-10-13 13:26:19,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 13:26:19,758 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 99 [2020-10-13 13:26:19,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:26:19,780 INFO L225 Difference]: With dead ends: 4889 [2020-10-13 13:26:19,780 INFO L226 Difference]: Without dead ends: 3241 [2020-10-13 13:26:19,789 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2020-10-13 13:26:19,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3241 states. [2020-10-13 13:26:20,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3241 to 3173. [2020-10-13 13:26:20,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3173 states. [2020-10-13 13:26:20,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3173 states to 3173 states and 4438 transitions. [2020-10-13 13:26:20,082 INFO L78 Accepts]: Start accepts. Automaton has 3173 states and 4438 transitions. Word has length 99 [2020-10-13 13:26:20,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:26:20,082 INFO L479 AbstractCegarLoop]: Abstraction has 3173 states and 4438 transitions. [2020-10-13 13:26:20,082 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 13:26:20,083 INFO L276 IsEmpty]: Start isEmpty. Operand 3173 states and 4438 transitions. [2020-10-13 13:26:20,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-13 13:26:20,085 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:26:20,085 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] [2020-10-13 13:26:20,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 13:26:20,085 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:26:20,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:26:20,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1713863504, now seen corresponding path program 1 times [2020-10-13 13:26:20,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:26:20,087 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1112044626] [2020-10-13 13:26:20,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:26:20,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:20,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:20,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:20,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:20,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:23,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:23,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-13 13:26:23,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:26:23,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2917 [2020-10-13 13:26:23,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:23,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:26:23,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-13 13:26:23,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 13:26:23,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:23,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:26:23,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:23,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:23,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:23,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:26:23,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:23,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:26:23,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:23,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:23,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:23,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:23,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:23,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:26:23,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:23,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:23,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:23,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 13:26:23,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:23,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:26:23,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:23,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:23,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:23,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:23,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:23,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 13:26:23,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:23,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:23,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:23,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:26:23,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:23,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:26:23,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:23,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:23,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:23,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:23,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:23,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 13:26:23,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:23,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:23,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:23,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:23,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:23,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:26:23,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:23,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:23,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:23,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:23,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:23,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:26:23,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:23,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:23,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:23,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:23,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:23,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:26:23,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:23,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:23,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:23,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:23,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:23,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 13:26:23,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:23,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:23,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:23,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:23,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:23,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:26:23,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:23,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:23,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:23,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:23,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:23,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:26:23,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:23,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:23,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:23,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:23,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:23,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:26:23,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:23,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:23,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:23,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:23,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:23,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-13 13:26:23,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:23,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:23,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:23,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:26:23,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:23,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:26:23,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:23,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:26:23,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:26:23,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:26:23,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:23,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-13 13:26:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:23,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:23,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:23,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:26:23,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:23,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:23,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:23,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:23,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:26:23,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:23,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:23,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:26:23,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1112044626] [2020-10-13 13:26:23,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:26:23,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 13:26:23,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262957114] [2020-10-13 13:26:23,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 13:26:23,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:26:23,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 13:26:23,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-13 13:26:23,467 INFO L87 Difference]: Start difference. First operand 3173 states and 4438 transitions. Second operand 12 states. [2020-10-13 13:26:23,849 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:26:24,485 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:26:25,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:26:25,497 INFO L93 Difference]: Finished difference Result 6720 states and 9308 transitions. [2020-10-13 13:26:25,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 13:26:25,497 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 99 [2020-10-13 13:26:25,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:26:25,519 INFO L225 Difference]: With dead ends: 6720 [2020-10-13 13:26:25,520 INFO L226 Difference]: Without dead ends: 3596 [2020-10-13 13:26:25,531 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=175, Invalid=475, Unknown=0, NotChecked=0, Total=650 [2020-10-13 13:26:25,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3596 states. [2020-10-13 13:26:25,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3596 to 3320. [2020-10-13 13:26:25,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3320 states. [2020-10-13 13:26:25,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3320 states to 3320 states and 4631 transitions. [2020-10-13 13:26:25,775 INFO L78 Accepts]: Start accepts. Automaton has 3320 states and 4631 transitions. Word has length 99 [2020-10-13 13:26:25,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:26:25,776 INFO L479 AbstractCegarLoop]: Abstraction has 3320 states and 4631 transitions. [2020-10-13 13:26:25,776 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 13:26:25,776 INFO L276 IsEmpty]: Start isEmpty. Operand 3320 states and 4631 transitions. [2020-10-13 13:26:25,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-13 13:26:25,778 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:26:25,778 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] [2020-10-13 13:26:25,778 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 13:26:25,778 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:26:25,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:26:25,779 INFO L82 PathProgramCache]: Analyzing trace with hash -315399896, now seen corresponding path program 1 times [2020-10-13 13:26:25,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:26:25,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1399236014] [2020-10-13 13:26:25,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:26:25,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:25,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:25,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:26,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:26,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:28,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:28,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-13 13:26:28,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:26:28,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2882 [2020-10-13 13:26:28,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:28,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:26:28,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-13 13:26:28,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 13:26:28,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:28,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:26:28,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:28,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:28,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:28,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:26:28,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:28,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:26:28,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:28,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:28,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:28,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:28,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:28,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:26:28,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:28,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:28,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:28,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 13:26:28,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:28,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:26:28,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:28,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:28,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:28,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:28,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:28,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 13:26:28,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:28,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:28,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:28,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:26:28,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:28,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:26:28,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:28,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:28,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:28,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:28,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:28,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 13:26:28,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:28,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:28,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:28,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:28,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:28,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:26:28,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:28,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:28,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:28,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:28,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:28,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:26:28,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:28,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:28,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:28,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:28,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:28,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:26:28,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:28,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:28,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:28,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:28,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:28,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 13:26:28,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:28,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:28,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:28,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:28,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:28,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:26:28,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:28,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:28,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:28,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:28,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:28,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:26:28,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:28,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:28,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:28,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:26:28,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:28,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:26:28,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:28,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:26:28,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:26:28,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:26:28,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:29,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:26:29,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:29,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:29,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:29,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:29,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:29,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:26:29,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:29,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:29,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:29,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:29,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:29,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-13 13:26:29,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:29,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:29,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:29,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:26:29,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:29,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:29,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:29,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:29,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:26:29,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:29,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:29,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:26:29,082 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1399236014] [2020-10-13 13:26:29,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:26:29,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 13:26:29,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537782662] [2020-10-13 13:26:29,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 13:26:29,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:26:29,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 13:26:29,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-13 13:26:29,085 INFO L87 Difference]: Start difference. First operand 3320 states and 4631 transitions. Second operand 12 states. [2020-10-13 13:26:29,920 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:26:31,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:26:31,272 INFO L93 Difference]: Finished difference Result 7350 states and 10179 transitions. [2020-10-13 13:26:31,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 13:26:31,273 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 99 [2020-10-13 13:26:31,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:26:31,297 INFO L225 Difference]: With dead ends: 7350 [2020-10-13 13:26:31,298 INFO L226 Difference]: Without dead ends: 4160 [2020-10-13 13:26:31,309 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=175, Invalid=475, Unknown=0, NotChecked=0, Total=650 [2020-10-13 13:26:31,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4160 states. [2020-10-13 13:26:31,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4160 to 3405. [2020-10-13 13:26:31,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3405 states. [2020-10-13 13:26:31,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3405 states to 3405 states and 4743 transitions. [2020-10-13 13:26:31,556 INFO L78 Accepts]: Start accepts. Automaton has 3405 states and 4743 transitions. Word has length 99 [2020-10-13 13:26:31,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:26:31,556 INFO L479 AbstractCegarLoop]: Abstraction has 3405 states and 4743 transitions. [2020-10-13 13:26:31,557 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 13:26:31,557 INFO L276 IsEmpty]: Start isEmpty. Operand 3405 states and 4743 transitions. [2020-10-13 13:26:31,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-13 13:26:31,558 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:26:31,558 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] [2020-10-13 13:26:31,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 13:26:31,559 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:26:31,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:26:31,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1359775528, now seen corresponding path program 1 times [2020-10-13 13:26:31,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:26:31,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1360701987] [2020-10-13 13:26:31,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:26:31,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:31,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:31,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:31,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:32,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:34,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:34,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-13 13:26:34,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:26:34,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3127 [2020-10-13 13:26:34,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:34,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:26:34,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-13 13:26:34,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 13:26:34,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:34,863 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:26:34,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:26:34,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:34,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:34,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:34,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:26:34,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:34,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:26:34,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:34,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:34,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:34,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:34,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:34,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:26:34,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:34,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:34,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:34,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 13:26:34,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:34,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:26:34,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:34,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:34,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:34,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:34,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:34,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 13:26:34,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:34,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:34,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:34,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:26:34,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:34,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:26:34,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:34,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:34,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:34,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:34,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:34,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 13:26:34,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:34,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:34,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:34,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:34,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:34,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:26:34,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:34,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:34,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:34,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:34,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:34,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:26:34,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:34,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:34,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:34,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:26:34,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:34,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:26:34,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:34,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:26:34,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:26:35,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:26:35,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:35,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:26:35,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:35,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:35,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:35,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:35,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:35,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:26:35,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:35,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:35,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:35,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:35,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:35,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:26:35,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:35,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:35,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:35,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:35,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:35,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:26:35,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:35,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:35,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:35,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:35,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:35,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:26:35,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:35,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:35,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:35,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:35,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:35,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:26:35,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:35,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:35,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:35,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:35,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:35,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-13 13:26:35,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:35,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:35,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:35,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:26:35,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:35,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:35,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:35,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:35,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:26:35,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:35,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:35,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:26:35,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1360701987] [2020-10-13 13:26:35,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:26:35,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 13:26:35,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406059008] [2020-10-13 13:26:35,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 13:26:35,165 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:26:35,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 13:26:35,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-13 13:26:35,167 INFO L87 Difference]: Start difference. First operand 3405 states and 4743 transitions. Second operand 12 states. [2020-10-13 13:26:37,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:26:37,228 INFO L93 Difference]: Finished difference Result 8578 states and 11905 transitions. [2020-10-13 13:26:37,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 13:26:37,229 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 99 [2020-10-13 13:26:37,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:26:37,258 INFO L225 Difference]: With dead ends: 8578 [2020-10-13 13:26:37,258 INFO L226 Difference]: Without dead ends: 5251 [2020-10-13 13:26:37,275 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=175, Invalid=475, Unknown=0, NotChecked=0, Total=650 [2020-10-13 13:26:37,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5251 states. [2020-10-13 13:26:37,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5251 to 3619. [2020-10-13 13:26:37,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3619 states. [2020-10-13 13:26:37,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3619 states to 3619 states and 5033 transitions. [2020-10-13 13:26:37,556 INFO L78 Accepts]: Start accepts. Automaton has 3619 states and 5033 transitions. Word has length 99 [2020-10-13 13:26:37,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:26:37,557 INFO L479 AbstractCegarLoop]: Abstraction has 3619 states and 5033 transitions. [2020-10-13 13:26:37,557 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 13:26:37,557 INFO L276 IsEmpty]: Start isEmpty. Operand 3619 states and 5033 transitions. [2020-10-13 13:26:37,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-13 13:26:37,559 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:26:37,560 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] [2020-10-13 13:26:37,560 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 13:26:37,560 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:26:37,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:26:37,561 INFO L82 PathProgramCache]: Analyzing trace with hash -967946641, now seen corresponding path program 1 times [2020-10-13 13:26:37,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:26:37,561 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1144230717] [2020-10-13 13:26:37,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:26:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:37,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:37,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:37,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:37,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-13 13:26:37,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:26:37,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-10-13 13:26:37,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:37,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:26:37,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 13:26:37,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-13 13:26:37,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:38,015 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:26:38,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:26:38,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:38,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:38,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:38,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:26:38,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:38,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:26:38,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:38,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:38,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:38,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:38,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:26:38,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:26:38,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:38,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:38,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:38,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 13:26:38,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:38,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:26:38,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:38,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:38,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:38,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 13:26:38,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:38,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 13:26:38,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:38,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:38,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:38,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:26:38,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:38,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:38,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:38,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:38,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:38,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:26:38,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:38,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 13:26:38,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:38,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:38,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:38,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:38,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:38,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:26:38,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:38,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:26:38,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:26:38,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:26:38,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:38,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:26:38,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:38,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:38,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:38,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:38,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:38,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:26:38,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:38,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:38,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:38,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:38,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:38,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 13:26:38,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:38,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:38,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:38,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:38,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:38,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:26:38,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:38,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:38,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:38,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:38,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:38,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:26:38,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:38,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:38,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:38,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:38,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:38,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:26:38,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:38,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:38,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:38,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:38,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:38,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-13 13:26:38,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:38,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:38,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:38,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:38,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:38,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:26:38,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:38,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:38,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:38,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:26:38,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:38,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 13:26:38,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:38,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:38,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:38,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:38,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:26:38,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:26:38,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:26:38,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:38,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:38,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 13:26:38,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:26:38,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:38,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:26:38,278 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1144230717] [2020-10-13 13:26:38,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:26:38,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:26:38,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669625588] [2020-10-13 13:26:38,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:26:38,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:26:38,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:26:38,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:26:38,280 INFO L87 Difference]: Start difference. First operand 3619 states and 5033 transitions. Second operand 11 states. [2020-10-13 13:26:38,466 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:26:40,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:26:40,828 INFO L93 Difference]: Finished difference Result 8839 states and 12348 transitions. [2020-10-13 13:26:40,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 13:26:40,828 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 100 [2020-10-13 13:26:40,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:26:40,859 INFO L225 Difference]: With dead ends: 8839 [2020-10-13 13:26:40,859 INFO L226 Difference]: Without dead ends: 5276 [2020-10-13 13:26:40,870 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2020-10-13 13:26:40,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5276 states. [2020-10-13 13:26:41,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5276 to 5188. [2020-10-13 13:26:41,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5188 states. [2020-10-13 13:26:41,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5188 states to 5188 states and 7181 transitions. [2020-10-13 13:26:41,222 INFO L78 Accepts]: Start accepts. Automaton has 5188 states and 7181 transitions. Word has length 100 [2020-10-13 13:26:41,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:26:41,222 INFO L479 AbstractCegarLoop]: Abstraction has 5188 states and 7181 transitions. [2020-10-13 13:26:41,222 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:26:41,223 INFO L276 IsEmpty]: Start isEmpty. Operand 5188 states and 7181 transitions. [2020-10-13 13:26:41,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-13 13:26:41,224 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:26:41,224 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] [2020-10-13 13:26:41,224 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 13:26:41,224 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:26:41,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:26:41,225 INFO L82 PathProgramCache]: Analyzing trace with hash 679478320, now seen corresponding path program 1 times [2020-10-13 13:26:41,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:26:41,226 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [584413] [2020-10-13 13:26:41,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:26:41,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:41,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:41,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:41,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-13 13:26:41,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:41,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 300 [2020-10-13 13:26:41,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:41,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:26:41,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-13 13:26:41,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:26:41,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:41,748 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:26:41,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:26:41,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:41,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:41,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:41,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:26:41,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:41,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 13:26:41,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:41,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:41,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:41,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:41,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:41,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:26:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:41,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:41,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:41,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 13:26:41,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:41,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:26:41,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:41,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:41,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:41,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:41,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:41,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 13:26:41,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:41,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:41,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:41,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:26:41,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:41,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:26:41,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:41,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:41,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:41,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:41,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:41,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 13:26:41,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:41,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:41,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:41,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:41,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:41,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:26:41,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:41,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:41,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:41,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:41,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:41,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:26:41,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:41,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:41,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:41,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:41,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:41,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:26:41,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:41,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:41,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:41,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:41,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:41,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 13:26:41,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:41,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:41,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:41,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:41,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:41,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:26:41,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:41,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:41,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:41,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:41,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:41,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:26:41,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:41,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:41,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:41,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:41,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:41,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:26:41,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:41,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:41,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:41,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:41,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:41,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-13 13:26:41,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:41,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:41,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:41,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:41,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:41,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:26:41,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:41,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:41,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:41,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:41,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:41,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 13:26:41,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:41,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:41,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:41,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:26:41,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:41,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:26:41,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:41,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:26:41,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:41,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:26:41,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:41,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:26:41,995 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [584413] [2020-10-13 13:26:41,995 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:26:41,995 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-13 13:26:41,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682342935] [2020-10-13 13:26:41,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 13:26:41,996 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:26:41,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 13:26:41,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-13 13:26:41,997 INFO L87 Difference]: Start difference. First operand 5188 states and 7181 transitions. Second operand 14 states. [2020-10-13 13:26:43,154 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:26:43,311 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:26:43,447 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-13 13:26:44,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:26:44,084 INFO L93 Difference]: Finished difference Result 5758 states and 8259 transitions. [2020-10-13 13:26:44,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 13:26:44,085 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 100 [2020-10-13 13:26:44,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:26:44,124 INFO L225 Difference]: With dead ends: 5758 [2020-10-13 13:26:44,124 INFO L226 Difference]: Without dead ends: 5756 [2020-10-13 13:26:44,129 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=129, Invalid=423, Unknown=0, NotChecked=0, Total=552 [2020-10-13 13:26:44,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5756 states. [2020-10-13 13:26:44,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5756 to 5404. [2020-10-13 13:26:44,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5404 states. [2020-10-13 13:26:44,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5404 states to 5404 states and 7403 transitions. [2020-10-13 13:26:44,513 INFO L78 Accepts]: Start accepts. Automaton has 5404 states and 7403 transitions. Word has length 100 [2020-10-13 13:26:44,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:26:44,514 INFO L479 AbstractCegarLoop]: Abstraction has 5404 states and 7403 transitions. [2020-10-13 13:26:44,514 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 13:26:44,514 INFO L276 IsEmpty]: Start isEmpty. Operand 5404 states and 7403 transitions. [2020-10-13 13:26:44,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-13 13:26:44,516 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:26:44,517 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] [2020-10-13 13:26:44,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 13:26:44,517 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:26:44,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:26:44,518 INFO L82 PathProgramCache]: Analyzing trace with hash -451320693, now seen corresponding path program 1 times [2020-10-13 13:26:44,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:26:44,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [176382752] [2020-10-13 13:26:44,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:26:44,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:44,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:44,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:44,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:45,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:48,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:48,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-13 13:26:48,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:26:48,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3647 [2020-10-13 13:26:48,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:48,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:26:48,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-13 13:26:48,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:26:48,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:48,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:26:48,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:48,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:48,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:48,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:26:48,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:48,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:26:48,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:48,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:48,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:48,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:48,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:48,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:26:48,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:48,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:48,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:48,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 13:26:48,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:48,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:26:48,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:48,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:48,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:48,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:48,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:48,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 13:26:48,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:48,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:48,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:48,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:26:48,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:48,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 13:26:48,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:48,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:48,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:48,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:48,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:48,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 13:26:48,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:48,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:48,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:48,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 13:26:48,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:48,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:26:48,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:48,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:26:48,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:26:48,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:26:48,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:48,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-13 13:26:48,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:48,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:48,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:48,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:48,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:48,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:48,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:48,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:48,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:48,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:48,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:48,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-13 13:26:48,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:48,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:48,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:48,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:48,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:48,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:26:48,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:48,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:48,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:48,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:48,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:48,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-13 13:26:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:48,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:48,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:48,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:48,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:48,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:48,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:48,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:48,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:48,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:48,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:48,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 13:26:48,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:48,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:48,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:48,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:48,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:48,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:26:48,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:48,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:48,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:48,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:48,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:48,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 13:26:48,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:48,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:48,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:48,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:26:48,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:48,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:26:48,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:48,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:48,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:26:48,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:48,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:48,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:26:48,514 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [176382752] [2020-10-13 13:26:48,514 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:26:48,514 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 13:26:48,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650208644] [2020-10-13 13:26:48,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 13:26:48,515 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:26:48,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 13:26:48,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-13 13:26:48,515 INFO L87 Difference]: Start difference. First operand 5404 states and 7403 transitions. Second operand 12 states. [2020-10-13 13:26:48,823 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-13 13:26:48,939 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:26:50,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:26:50,663 INFO L93 Difference]: Finished difference Result 10602 states and 14618 transitions. [2020-10-13 13:26:50,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 13:26:50,664 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 101 [2020-10-13 13:26:50,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:26:50,694 INFO L225 Difference]: With dead ends: 10602 [2020-10-13 13:26:50,694 INFO L226 Difference]: Without dead ends: 6835 [2020-10-13 13:26:50,707 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=175, Invalid=475, Unknown=0, NotChecked=0, Total=650 [2020-10-13 13:26:50,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6835 states. [2020-10-13 13:26:51,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6835 to 5226. [2020-10-13 13:26:51,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5226 states. [2020-10-13 13:26:51,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5226 states to 5226 states and 7190 transitions. [2020-10-13 13:26:51,125 INFO L78 Accepts]: Start accepts. Automaton has 5226 states and 7190 transitions. Word has length 101 [2020-10-13 13:26:51,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:26:51,126 INFO L479 AbstractCegarLoop]: Abstraction has 5226 states and 7190 transitions. [2020-10-13 13:26:51,126 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 13:26:51,126 INFO L276 IsEmpty]: Start isEmpty. Operand 5226 states and 7190 transitions. [2020-10-13 13:26:51,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-13 13:26:51,127 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:26:51,128 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] [2020-10-13 13:26:51,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 13:26:51,128 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:26:51,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:26:51,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1666658154, now seen corresponding path program 1 times [2020-10-13 13:26:51,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:26:51,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1664781691] [2020-10-13 13:26:51,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:26:51,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:51,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:51,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:51,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:51,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:51,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-13 13:26:51,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:26:51,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 667 [2020-10-13 13:26:51,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:51,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:26:51,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-13 13:26:51,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 13:26:51,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:51,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:26:51,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:51,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:51,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:51,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:26:51,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:51,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:26:51,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:51,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:51,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:51,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:51,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:51,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:26:51,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:51,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:51,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:51,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 13:26:51,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:51,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:26:51,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:51,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:51,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:51,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:26:51,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:51,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 13:26:51,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:51,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:51,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:51,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:26:51,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:51,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:51,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:51,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:26:51,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:26:51,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:26:51,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:51,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 13:26:51,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:51,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:52,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:52,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:26:52,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:52,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:26:52,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:52,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:26:52,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:26:52,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:26:52,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:52,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 13:26:52,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:52,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:52,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:52,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:52,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:52,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:26:52,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:52,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:52,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:52,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:52,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:52,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:26:52,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:52,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:52,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:52,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:52,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:52,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:26:52,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:52,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:52,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:52,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:52,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:52,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:26:52,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:52,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:52,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:52,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:52,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:52,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:26:52,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:52,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:52,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:52,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:52,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:52,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:26:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:52,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:52,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:52,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:26:52,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:52,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:52,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:52,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:52,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:26:52,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:52,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:52,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-13 13:26:52,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:52,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:52,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:26:52,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:26:52,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:26:52,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:26:52,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:26:52,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:26:52,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:26:52,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:26:52,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:26:52,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:26:52,159 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1664781691] [2020-10-13 13:26:52,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:26:52,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:26:52,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214987400] [2020-10-13 13:26:52,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:26:52,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:26:52,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:26:52,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:26:52,161 INFO L87 Difference]: Start difference. First operand 5226 states and 7190 transitions. Second operand 11 states. [2020-10-13 13:26:52,311 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:26:53,197 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-13 13:26:54,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:26:54,708 INFO L93 Difference]: Finished difference Result 10595 states and 14600 transitions. [2020-10-13 13:26:54,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 13:26:54,709 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 102 [2020-10-13 13:26:54,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:26:54,750 INFO L225 Difference]: With dead ends: 10595 [2020-10-13 13:26:54,750 INFO L226 Difference]: Without dead ends: 6751 [2020-10-13 13:26:54,761 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2020-10-13 13:26:54,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6751 states. [2020-10-13 13:26:55,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6751 to 6472. [2020-10-13 13:26:55,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6472 states. [2020-10-13 13:26:55,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6472 states to 6472 states and 8806 transitions. [2020-10-13 13:26:55,130 INFO L78 Accepts]: Start accepts. Automaton has 6472 states and 8806 transitions. Word has length 102 [2020-10-13 13:26:55,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:26:55,130 INFO L479 AbstractCegarLoop]: Abstraction has 6472 states and 8806 transitions. [2020-10-13 13:26:55,130 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:26:55,130 INFO L276 IsEmpty]: Start isEmpty. Operand 6472 states and 8806 transitions. [2020-10-13 13:26:55,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-13 13:26:55,135 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:26:55,135 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:26:55,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 13:26:55,136 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:26:55,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:26:55,136 INFO L82 PathProgramCache]: Analyzing trace with hash -1437516691, now seen corresponding path program 1 times [2020-10-13 13:26:55,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:26:55,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1209671016] [2020-10-13 13:26:55,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:26:55,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:26:55,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:55,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:55,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:55,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:56,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:26:56,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:00,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:00,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-13 13:27:00,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 13:27:00,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-13 13:27:00,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:00,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:00,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-13 13:27:00,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 13:27:00,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:00,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:27:00,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:00,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:00,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:00,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:27:00,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:00,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:27:00,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:00,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:00,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:00,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:00,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:00,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:27:00,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:00,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:00,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:00,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 13:27:00,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:00,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:27:00,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:00,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:00,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:00,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:00,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:00,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 13:27:00,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:00,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:00,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:00,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:27:00,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:00,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:27:00,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:00,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:00,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:00,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:00,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:00,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 13:27:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:00,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:00,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:00,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:00,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:00,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:27:00,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:00,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:00,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:00,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:00,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:00,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:27:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:00,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:00,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:00,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:00,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:00,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:00,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:00,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:00,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:00,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:00,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:27:00,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 13:27:00,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:00,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:00,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:00,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:00,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:00,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:27:00,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:00,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:00,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:00,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:00,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:00,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:27:00,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:00,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:00,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:00,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:00,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:00,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:27:00,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:00,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:00,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:00,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:27:00,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:00,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-13 13:27:00,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:00,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:00,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:00,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:00,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:00,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:00,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:00,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:00,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:00,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:00,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:00,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 13:27:00,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:00,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:00,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:00,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:27:00,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:00,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:27:00,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:00,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:00,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:00,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:27:00,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:00,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-13 13:27:00,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:00,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:00,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:00,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:27:00,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:00,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:27:00,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:00,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:00,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:00,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:27:00,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:00,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:27:00,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:00,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:00,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:00,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:00,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:00,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:27:00,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:00,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:00,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:00,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:00,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:00,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-13 13:27:00,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:00,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:00,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:00,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:00,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:00,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:27:00,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:00,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:00,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:00,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:00,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:00,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-13 13:27:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:00,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:00,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:00,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:00,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:00,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:27:00,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:00,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:00,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:00,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:00,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:00,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-13 13:27:00,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:00,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:00,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:00,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:00,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:00,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:27:00,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:00,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:00,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:00,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:00,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:00,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-13 13:27:00,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:00,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:00,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:00,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:27:00,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:00,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:27:00,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:00,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:00,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:27:00,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:00,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:00,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-13 13:27:00,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:00,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:00,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:00,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:27:00,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:00,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:27:00,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:00,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:00,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:27:00,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:00,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:00,613 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-13 13:27:00,614 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1209671016] [2020-10-13 13:27:00,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:27:00,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-13 13:27:00,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677603674] [2020-10-13 13:27:00,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:27:00,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:27:00,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:27:00,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:27:00,617 INFO L87 Difference]: Start difference. First operand 6472 states and 8806 transitions. Second operand 11 states. [2020-10-13 13:27:00,832 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:27:01,387 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-10-13 13:27:01,648 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-13 13:27:03,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:27:03,051 INFO L93 Difference]: Finished difference Result 19045 states and 26155 transitions. [2020-10-13 13:27:03,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 13:27:03,052 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 151 [2020-10-13 13:27:03,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:27:03,100 INFO L225 Difference]: With dead ends: 19045 [2020-10-13 13:27:03,100 INFO L226 Difference]: Without dead ends: 12664 [2020-10-13 13:27:03,120 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=170, Invalid=430, Unknown=0, NotChecked=0, Total=600 [2020-10-13 13:27:03,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12664 states. [2020-10-13 13:27:03,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12664 to 12244. [2020-10-13 13:27:03,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12244 states. [2020-10-13 13:27:03,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12244 states to 12244 states and 16609 transitions. [2020-10-13 13:27:03,941 INFO L78 Accepts]: Start accepts. Automaton has 12244 states and 16609 transitions. Word has length 151 [2020-10-13 13:27:03,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:27:03,941 INFO L479 AbstractCegarLoop]: Abstraction has 12244 states and 16609 transitions. [2020-10-13 13:27:03,941 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:27:03,941 INFO L276 IsEmpty]: Start isEmpty. Operand 12244 states and 16609 transitions. [2020-10-13 13:27:03,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-13 13:27:03,948 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:27:03,949 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:27:03,949 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 13:27:03,949 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:27:03,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:27:03,949 INFO L82 PathProgramCache]: Analyzing trace with hash 200711459, now seen corresponding path program 1 times [2020-10-13 13:27:03,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:27:03,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [106895757] [2020-10-13 13:27:03,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:27:03,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:04,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:04,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:04,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:05,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:05,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:05,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:08,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:09,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-13 13:27:09,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 13:27:09,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-13 13:27:09,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:09,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:09,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-13 13:27:09,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 13:27:09,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:09,135 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:27:09,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:27:09,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:09,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:09,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:09,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:27:09,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:09,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:27:09,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:09,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:09,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:09,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:09,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:09,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:27:09,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:09,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:09,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:09,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 13:27:09,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:09,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:27:09,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:09,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:09,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:09,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:09,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:09,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 13:27:09,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:09,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:09,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:09,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:27:09,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:09,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:27:09,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:09,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:09,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:09,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:09,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:09,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 13:27:09,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:09,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:09,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:09,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:09,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:09,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:27:09,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:09,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:09,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:09,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:09,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:09,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:27:09,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:09,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:09,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:09,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:09,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:09,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:09,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:09,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:09,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:09,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:27:09,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:09,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 13:27:09,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:09,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:09,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:09,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:09,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:09,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:09,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:09,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:09,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:09,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:09,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:09,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:27:09,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:09,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:09,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:09,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:09,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:09,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:09,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:09,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:09,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:09,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:09,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:09,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-13 13:27:09,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:09,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:09,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:09,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:09,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:09,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:09,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:09,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:09,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:09,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:09,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:09,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 13:27:09,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:09,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:09,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:09,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:27:09,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:09,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:27:09,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:09,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:09,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:09,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:27:09,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:09,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-13 13:27:09,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:09,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:09,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:09,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:27:09,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:09,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:27:09,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:09,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:09,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:09,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:27:09,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:09,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:27:09,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:09,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:09,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:09,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:09,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:09,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:27:09,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:09,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:09,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:09,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:09,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:09,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-13 13:27:09,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:09,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:09,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:09,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:09,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:09,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:27:09,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:09,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:09,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:09,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:09,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:09,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-13 13:27:09,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:09,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:09,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:09,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:09,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:09,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:27:09,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:09,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:09,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:27:09,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:09,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:09,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-13 13:27:09,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:09,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:09,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:09,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:09,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:09,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:27:09,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:09,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:09,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:27:09,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:09,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:09,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-13 13:27:09,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:09,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:09,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:09,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:27:09,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:09,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:27:09,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:09,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:09,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:27:09,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:09,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:09,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-13 13:27:09,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:09,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:09,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:09,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:27:09,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:09,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:27:09,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:09,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:09,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:27:09,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:09,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:09,398 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-13 13:27:09,399 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [106895757] [2020-10-13 13:27:09,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:27:09,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-13 13:27:09,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283572867] [2020-10-13 13:27:09,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:27:09,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:27:09,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:27:09,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:27:09,400 INFO L87 Difference]: Start difference. First operand 12244 states and 16609 transitions. Second operand 11 states. [2020-10-13 13:27:09,589 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:27:10,154 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 13:27:12,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:27:12,335 INFO L93 Difference]: Finished difference Result 36230 states and 49524 transitions. [2020-10-13 13:27:12,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 13:27:12,335 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 151 [2020-10-13 13:27:12,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:27:12,405 INFO L225 Difference]: With dead ends: 36230 [2020-10-13 13:27:12,405 INFO L226 Difference]: Without dead ends: 24088 [2020-10-13 13:27:12,438 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2020-10-13 13:27:12,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24088 states. [2020-10-13 13:27:13,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24088 to 23282. [2020-10-13 13:27:13,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23282 states. [2020-10-13 13:27:13,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23282 states to 23282 states and 31382 transitions. [2020-10-13 13:27:13,645 INFO L78 Accepts]: Start accepts. Automaton has 23282 states and 31382 transitions. Word has length 151 [2020-10-13 13:27:13,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:27:13,646 INFO L479 AbstractCegarLoop]: Abstraction has 23282 states and 31382 transitions. [2020-10-13 13:27:13,646 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:27:13,646 INFO L276 IsEmpty]: Start isEmpty. Operand 23282 states and 31382 transitions. [2020-10-13 13:27:13,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-13 13:27:13,655 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:27:13,656 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:27:13,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 13:27:13,656 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:27:13,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:27:13,656 INFO L82 PathProgramCache]: Analyzing trace with hash 519794587, now seen corresponding path program 1 times [2020-10-13 13:27:13,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:27:13,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [623019039] [2020-10-13 13:27:13,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:27:13,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:13,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:13,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:13,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:15,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:15,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:16,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:16,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:16,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:18,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:18,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-13 13:27:18,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 13:27:18,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-13 13:27:18,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:18,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:18,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-10-13 13:27:18,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 13:27:18,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:18,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:27:18,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:18,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:18,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:18,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:27:18,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:18,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:18,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:18,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:18,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:18,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:18,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:18,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:27:18,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:18,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:18,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:18,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 13:27:18,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:18,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:27:18,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:18,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:18,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:18,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:18,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:18,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 13:27:18,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:18,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:18,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:18,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:27:18,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:18,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:27:18,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:18,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:18,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:18,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:18,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:18,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 13:27:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:18,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:18,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:18,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:18,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:18,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:18,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:18,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:18,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:18,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:27:18,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:18,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:27:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:18,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:18,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:18,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:18,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:18,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:18,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:18,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:18,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:18,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:18,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:18,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 13:27:18,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:18,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:18,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:18,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:18,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:18,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:18,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:18,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:18,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:18,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:18,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:18,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:27:18,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:18,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:18,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:18,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:18,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:18,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:18,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:18,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:18,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:18,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:18,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:18,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-13 13:27:18,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:18,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:18,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:18,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:18,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:18,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:27:18,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:18,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:18,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:18,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:18,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:18,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 13:27:18,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:18,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:18,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:18,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:27:18,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:18,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:27:18,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:18,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:18,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:18,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:27:18,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:18,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-13 13:27:18,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:18,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:18,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:18,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:27:18,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:18,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:27:18,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:18,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:18,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:18,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:27:18,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:18,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:27:18,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:18,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:18,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:18,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:18,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:18,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:27:18,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:18,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:18,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:18,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:18,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:19,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-13 13:27:19,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:19,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:19,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:19,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:27:19,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:19,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:27:19,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:19,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:19,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:27:19,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:19,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:19,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 13:27:19,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:19,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:19,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:19,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:19,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:19,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:27:19,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:19,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:19,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:27:19,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:19,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:19,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-13 13:27:19,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:19,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:19,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:19,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:19,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:19,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:27:19,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:19,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:19,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:27:19,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:19,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:19,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-13 13:27:19,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:19,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:19,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:19,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:19,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:19,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:27:19,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:19,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:19,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:27:19,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:19,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:19,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-13 13:27:19,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:19,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:19,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:19,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:27:19,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:19,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:27:19,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:19,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:19,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:27:19,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:19,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:19,073 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-13 13:27:19,073 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [623019039] [2020-10-13 13:27:19,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:27:19,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-13 13:27:19,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351407998] [2020-10-13 13:27:19,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:27:19,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:27:19,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:27:19,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:27:19,075 INFO L87 Difference]: Start difference. First operand 23282 states and 31382 transitions. Second operand 11 states. [2020-10-13 13:27:19,239 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:27:21,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:27:21,499 INFO L93 Difference]: Finished difference Result 40182 states and 54004 transitions. [2020-10-13 13:27:21,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 13:27:21,500 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 151 [2020-10-13 13:27:21,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:27:21,554 INFO L225 Difference]: With dead ends: 40182 [2020-10-13 13:27:21,554 INFO L226 Difference]: Without dead ends: 17040 [2020-10-13 13:27:21,593 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2020-10-13 13:27:21,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17040 states. [2020-10-13 13:27:22,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17040 to 15734. [2020-10-13 13:27:22,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15734 states. [2020-10-13 13:27:22,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15734 states to 15734 states and 20842 transitions. [2020-10-13 13:27:22,514 INFO L78 Accepts]: Start accepts. Automaton has 15734 states and 20842 transitions. Word has length 151 [2020-10-13 13:27:22,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:27:22,514 INFO L479 AbstractCegarLoop]: Abstraction has 15734 states and 20842 transitions. [2020-10-13 13:27:22,514 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:27:22,514 INFO L276 IsEmpty]: Start isEmpty. Operand 15734 states and 20842 transitions. [2020-10-13 13:27:22,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-13 13:27:22,521 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:27:22,522 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:27:22,522 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 13:27:22,522 INFO L427 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:27:22,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:27:22,523 INFO L82 PathProgramCache]: Analyzing trace with hash 584942208, now seen corresponding path program 1 times [2020-10-13 13:27:22,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:27:22,523 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1704475774] [2020-10-13 13:27:22,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:27:22,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:22,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:22,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:22,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:22,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:27,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:27,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:27,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-13 13:27:27,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:27:27,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-13 13:27:27,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:27,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:27,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-10-13 13:27:27,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 13:27:27,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:27:27,756 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:27:27,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:27:27,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:27,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:27,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:27,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:27:27,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:27,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:27:27,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:27,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:27,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:27,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:27,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:27:27,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:27:27,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:27,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:27,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:27,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 13:27:27,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:27,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:27:27,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:27,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:27,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:27,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:27,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:27:27,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 13:27:27,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:27,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:27,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:27,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:27:27,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:27,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:27:27,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:27,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:27,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:27,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:27,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:27:27,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 13:27:27,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:27,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:27,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:27,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:27,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:27,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:27,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:27,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:27,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:27,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:27,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:27:27,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:27:27,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:27,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:27,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:27,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:27,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:27,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:27,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:27,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:27,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:27,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:27,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:27:27,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 13:27:27,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:27,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:27,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:27,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:27,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:27,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:27:27,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:27,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:27,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:27,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:27,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:27:27,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:27:27,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:27,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:27,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:27,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:27,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:27,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:27,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:27,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:27,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:27,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:27,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:27:27,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-13 13:27:27,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:27,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:27,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:27,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:27,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:27,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:27:27,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:27,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:27,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:27,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:27:27,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:27:27,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 13:27:27,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:27,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:27,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:27,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:27:27,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:27,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:27:27,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:27,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:27,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:27,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:27:27,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:27:28,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-13 13:27:28,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:28,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:28,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:28,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:27:28,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:28,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:27:28,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:28,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:28,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:28,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:27:28,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:27:28,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:27:28,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:28,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:28,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:28,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:27:28,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:28,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:27:28,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:28,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:28,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:28,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:27:28,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:28,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-13 13:27:28,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:28,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:28,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:28,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:27:28,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:28,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:28,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:28,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:28,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:28,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:27:28,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:28,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-13 13:27:28,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:28,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:28,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:28,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:28,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:28,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:28,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:28,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:28,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:28,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:28,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:28,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-13 13:27:28,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:28,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:28,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:28,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:28,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:28,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:28,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:28,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:28,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:28,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:28,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:28,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-13 13:27:28,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:28,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:28,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:28,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:28,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:28,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:27:28,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:28,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:28,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:28,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:28,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:28,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-13 13:27:28,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:28,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:28,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:28,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:27:28,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:28,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:27:28,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:28,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:28,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:27:28,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:28,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:28,142 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-13 13:27:28,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1704475774] [2020-10-13 13:27:28,146 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:27:28,146 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-13 13:27:28,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910152523] [2020-10-13 13:27:28,147 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:27:28,148 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:27:28,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:27:28,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:27:28,151 INFO L87 Difference]: Start difference. First operand 15734 states and 20842 transitions. Second operand 11 states. [2020-10-13 13:27:30,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:27:30,983 INFO L93 Difference]: Finished difference Result 46366 states and 61976 transitions. [2020-10-13 13:27:30,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 13:27:30,983 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 153 [2020-10-13 13:27:30,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:27:31,091 INFO L225 Difference]: With dead ends: 46366 [2020-10-13 13:27:31,091 INFO L226 Difference]: Without dead ends: 30856 [2020-10-13 13:27:31,136 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=170, Invalid=430, Unknown=0, NotChecked=0, Total=600 [2020-10-13 13:27:31,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30856 states. [2020-10-13 13:27:32,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30856 to 29678. [2020-10-13 13:27:32,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29678 states. [2020-10-13 13:27:32,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29678 states to 29678 states and 39086 transitions. [2020-10-13 13:27:32,929 INFO L78 Accepts]: Start accepts. Automaton has 29678 states and 39086 transitions. Word has length 153 [2020-10-13 13:27:32,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:27:32,929 INFO L479 AbstractCegarLoop]: Abstraction has 29678 states and 39086 transitions. [2020-10-13 13:27:32,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:27:32,929 INFO L276 IsEmpty]: Start isEmpty. Operand 29678 states and 39086 transitions. [2020-10-13 13:27:32,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-13 13:27:32,941 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:27:32,941 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:27:32,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 13:27:32,942 INFO L427 AbstractCegarLoop]: === Iteration 17 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:27:32,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:27:32,942 INFO L82 PathProgramCache]: Analyzing trace with hash -2115740406, now seen corresponding path program 1 times [2020-10-13 13:27:32,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:27:32,942 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1881216262] [2020-10-13 13:27:32,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:27:32,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:33,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:33,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:33,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:33,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:33,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:37,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:37,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-13 13:27:37,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:27:37,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-13 13:27:37,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:37,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 13:27:37,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 13:27:37,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-13 13:27:37,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:38,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:27:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:38,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:38,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:38,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:27:38,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:38,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:38,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:38,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:38,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:38,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:38,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:38,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:27:38,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:38,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:38,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:38,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 13:27:38,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:38,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:27:38,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:38,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:38,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:38,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 13:27:38,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:38,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 13:27:38,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:38,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:38,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:38,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:27:38,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:38,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:27:38,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:38,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:38,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:38,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:27:38,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:38,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 13:27:38,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:38,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:38,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:38,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:38,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:38,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:38,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:38,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:38,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:38,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:38,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:38,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:27:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:38,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:38,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:38,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:38,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:38,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:38,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:38,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:38,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:38,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:38,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:38,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 13:27:38,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:38,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:38,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:38,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:38,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:38,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:38,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:38,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:38,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:38,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:38,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:38,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:27:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:38,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:38,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:38,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:38,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:38,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:38,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:38,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:38,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:38,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:38,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:38,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-13 13:27:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:38,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:38,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:38,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:38,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:38,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:27:38,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:38,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:27:38,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:38,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:38,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:38,629 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 28 [2020-10-13 13:27:38,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 13:27:38,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:38,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:38,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:38,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:27:38,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:38,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:27:38,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:38,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:38,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:38,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:27:38,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:38,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-13 13:27:38,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:38,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:38,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:38,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:27:38,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:38,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:27:38,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:38,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:38,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:38,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:27:38,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:38,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:27:38,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:38,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:38,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:38,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:27:38,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:38,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:27:38,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:38,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:27:38,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:38,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:27:38,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:38,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-13 13:27:38,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:38,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:38,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:38,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:27:38,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:38,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:27:38,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:38,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:38,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:27:38,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:38,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:38,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-13 13:27:38,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:38,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:38,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:38,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:38,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:38,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:27:38,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:38,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:38,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:27:38,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:38,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:38,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-13 13:27:38,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:38,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:38,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:38,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:38,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:38,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:27:38,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:38,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:38,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:27:38,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:38,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:38,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-13 13:27:38,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:38,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:38,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:38,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:38,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:38,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:27:38,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:38,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:38,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:27:38,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:38,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:38,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-13 13:27:38,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:38,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:38,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:38,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:27:38,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:38,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:27:38,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:38,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:38,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:27:38,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:38,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:38,783 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-13 13:27:38,783 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1881216262] [2020-10-13 13:27:38,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:27:38,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-13 13:27:38,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039313384] [2020-10-13 13:27:38,784 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-13 13:27:38,784 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:27:38,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-13 13:27:38,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2020-10-13 13:27:38,785 INFO L87 Difference]: Start difference. First operand 29678 states and 39086 transitions. Second operand 17 states. [2020-10-13 13:27:38,970 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-13 13:27:39,339 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:27:40,251 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 141 [2020-10-13 13:27:40,543 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-13 13:27:43,648 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-13 13:27:46,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:27:46,792 INFO L93 Difference]: Finished difference Result 103984 states and 136121 transitions. [2020-10-13 13:27:46,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-13 13:27:46,793 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 153 [2020-10-13 13:27:46,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:27:47,148 INFO L225 Difference]: With dead ends: 103984 [2020-10-13 13:27:47,148 INFO L226 Difference]: Without dead ends: 74622 [2020-10-13 13:27:47,248 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 534 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=451, Invalid=1901, Unknown=0, NotChecked=0, Total=2352 [2020-10-13 13:27:47,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74622 states. [2020-10-13 13:27:53,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74622 to 72078. [2020-10-13 13:27:53,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72078 states. [2020-10-13 13:27:53,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72078 states to 72078 states and 94658 transitions. [2020-10-13 13:27:53,811 INFO L78 Accepts]: Start accepts. Automaton has 72078 states and 94658 transitions. Word has length 153 [2020-10-13 13:27:53,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:27:53,811 INFO L479 AbstractCegarLoop]: Abstraction has 72078 states and 94658 transitions. [2020-10-13 13:27:53,811 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-13 13:27:53,811 INFO L276 IsEmpty]: Start isEmpty. Operand 72078 states and 94658 transitions. [2020-10-13 13:27:53,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-13 13:27:53,827 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:27:53,827 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:27:53,828 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 13:27:53,828 INFO L427 AbstractCegarLoop]: === Iteration 18 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:27:53,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:27:53,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1938007678, now seen corresponding path program 1 times [2020-10-13 13:27:53,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:27:53,829 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [864944504] [2020-10-13 13:27:53,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:27:53,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:53,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:53,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:54,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:54,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:54,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:58,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:58,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-13 13:27:58,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:27:58,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 13:27:58,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:58,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 13:27:58,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 13:27:58,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-13 13:27:58,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:59,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:27:59,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:59,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:59,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:59,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:27:59,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:59,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:27:59,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:59,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:59,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:59,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:59,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:59,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:27:59,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:59,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:59,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:59,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 13:27:59,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:59,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:27:59,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:59,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:27:59,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:59,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 13:27:59,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:59,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 13:27:59,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:59,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:59,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:59,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:27:59,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:59,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:27:59,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:59,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:59,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:59,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:27:59,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:59,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 13:27:59,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:59,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:59,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:59,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:59,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:59,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:27:59,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:59,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:59,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:59,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:59,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:59,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:27:59,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:59,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:59,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:59,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:59,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:59,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:27:59,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:59,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:59,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:59,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:59,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:59,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 13:27:59,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:59,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:59,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:59,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:59,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:59,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:27:59,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:59,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:59,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:59,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:59,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:59,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:27:59,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:59,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:59,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:59,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:59,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:59,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:27:59,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:59,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:59,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:59,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:27:59,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:59,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-13 13:27:59,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:59,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:59,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:59,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:59,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:59,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:27:59,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:59,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:27:59,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:59,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:27:59,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:59,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 13:27:59,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:59,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:59,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:59,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:27:59,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:59,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:27:59,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:59,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:59,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:59,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:27:59,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:59,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-13 13:27:59,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:59,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:59,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:59,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:27:59,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:59,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:27:59,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:59,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:27:59,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:27:59,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:27:59,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:59,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:27:59,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:59,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:59,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:59,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 13:27:59,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:59,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:27:59,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:59,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:27:59,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:27:59,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 13:27:59,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:59,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-13 13:27:59,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:59,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:59,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:59,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:59,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:59,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:27:59,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:59,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:59,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:27:59,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:59,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:59,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-13 13:27:59,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:59,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:59,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:59,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:59,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:59,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:27:59,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:59,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:59,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:27:59,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:59,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:59,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-13 13:27:59,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:59,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:59,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:59,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:59,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:59,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:27:59,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:59,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:59,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:27:59,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:59,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:59,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-13 13:27:59,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:59,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:59,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:59,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:27:59,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:59,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:27:59,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:59,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:59,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:27:59,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:59,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:59,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-13 13:27:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:27:59,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:27:59,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:27:59,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:27:59,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:27:59,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:27:59,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:27:59,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:27:59,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:27:59,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:27:59,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:27:59,513 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-13 13:27:59,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [864944504] [2020-10-13 13:27:59,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:27:59,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-13 13:27:59,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614638616] [2020-10-13 13:27:59,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-13 13:27:59,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:27:59,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-13 13:27:59,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2020-10-13 13:27:59,515 INFO L87 Difference]: Start difference. First operand 72078 states and 94658 transitions. Second operand 20 states. [2020-10-13 13:27:59,719 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:27:59,893 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:28:00,370 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 126 [2020-10-13 13:28:00,765 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2020-10-13 13:28:00,969 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2020-10-13 13:28:01,218 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2020-10-13 13:28:01,422 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2020-10-13 13:28:01,667 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2020-10-13 13:28:01,955 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 128 [2020-10-13 13:28:02,165 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 87 [2020-10-13 13:28:02,631 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 132 [2020-10-13 13:28:03,042 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2020-10-13 13:28:03,248 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2020-10-13 13:28:04,670 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80 [2020-10-13 13:28:05,054 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80 [2020-10-13 13:28:05,605 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80 [2020-10-13 13:28:06,178 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80 [2020-10-13 13:28:06,804 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 83 [2020-10-13 13:28:07,115 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:28:10,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:28:10,447 INFO L93 Difference]: Finished difference Result 86884 states and 113473 transitions. [2020-10-13 13:28:10,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-13 13:28:10,448 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 153 [2020-10-13 13:28:10,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:28:10,701 INFO L225 Difference]: With dead ends: 86884 [2020-10-13 13:28:10,701 INFO L226 Difference]: Without dead ends: 73830 [2020-10-13 13:28:10,746 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=614, Invalid=2466, Unknown=0, NotChecked=0, Total=3080 [2020-10-13 13:28:10,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73830 states. [2020-10-13 13:28:17,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73830 to 72078. [2020-10-13 13:28:17,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72078 states. [2020-10-13 13:28:17,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72078 states to 72078 states and 94566 transitions. [2020-10-13 13:28:17,389 INFO L78 Accepts]: Start accepts. Automaton has 72078 states and 94566 transitions. Word has length 153 [2020-10-13 13:28:17,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:28:17,390 INFO L479 AbstractCegarLoop]: Abstraction has 72078 states and 94566 transitions. [2020-10-13 13:28:17,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-13 13:28:17,390 INFO L276 IsEmpty]: Start isEmpty. Operand 72078 states and 94566 transitions. [2020-10-13 13:28:17,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-13 13:28:17,401 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:28:17,402 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:28:17,402 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 13:28:17,402 INFO L427 AbstractCegarLoop]: === Iteration 19 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:28:17,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:28:17,402 INFO L82 PathProgramCache]: Analyzing trace with hash -2038839608, now seen corresponding path program 1 times [2020-10-13 13:28:17,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:28:17,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2060047142] [2020-10-13 13:28:17,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:28:17,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:17,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:17,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:17,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:17,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:19,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:22,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:22,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-13 13:28:22,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:28:22,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-13 13:28:22,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:22,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:28:22,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 13:28:22,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-13 13:28:22,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:22,642 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:28:22,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:28:22,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:22,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:22,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:22,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:28:22,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:22,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 13:28:22,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:22,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:22,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:22,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 13:28:22,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:22,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:28:22,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:22,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:22,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:22,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 13:28:22,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:22,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 13:28:22,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:22,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:22,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:22,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 13:28:22,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:22,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 13:28:22,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:22,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:22,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:22,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:28:22,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:22,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:28:22,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:22,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:22,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:22,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:28:22,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:22,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 13:28:22,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:22,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:22,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:22,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:22,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:22,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:28:22,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:22,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:22,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:22,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:22,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:22,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:28:22,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:22,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:22,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:22,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:22,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:22,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:28:22,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:22,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:22,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:22,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:22,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:22,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 13:28:22,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:22,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:22,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:22,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:22,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:22,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:28:22,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:22,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:22,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:22,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:22,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:22,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:28:22,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:22,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:22,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:22,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:22,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:22,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:28:22,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:22,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:22,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:22,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:22,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:22,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-13 13:28:22,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:22,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:22,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:22,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:22,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:22,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:28:22,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:22,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:22,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:28:22,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:28:22,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:23,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 13:28:23,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:23,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:23,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:23,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:28:23,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:23,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:28:23,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:23,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:23,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:28:23,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:23,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:23,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-13 13:28:23,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:23,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:23,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:23,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:28:23,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:23,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:28:23,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:23,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:23,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 13:28:23,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:23,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:23,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:28:23,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:23,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:23,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:23,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:28:23,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:23,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:23,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:23,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:23,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:28:23,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:23,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:23,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-13 13:28:23,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:23,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:23,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:23,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:28:23,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:23,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:23,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:23,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:23,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:28:23,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:23,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:23,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-13 13:28:23,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:23,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:23,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:23,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:23,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:23,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:28:23,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:23,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:23,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:23,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:23,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:23,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-13 13:28:23,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:23,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:23,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:23,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:23,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:23,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:28:23,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:23,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:23,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:23,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:23,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:23,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-13 13:28:23,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:23,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:23,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:23,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:23,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:23,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:28:23,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:23,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:23,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:23,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:23,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:23,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-13 13:28:23,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:23,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:23,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:23,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:28:23,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:23,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:28:23,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:23,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:23,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:28:23,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:23,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:23,185 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-13 13:28:23,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2060047142] [2020-10-13 13:28:23,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:28:23,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-13 13:28:23,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694931931] [2020-10-13 13:28:23,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-13 13:28:23,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:28:23,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-13 13:28:23,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-13 13:28:23,192 INFO L87 Difference]: Start difference. First operand 72078 states and 94566 transitions. Second operand 15 states. [2020-10-13 13:28:23,615 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 124 [2020-10-13 13:28:23,805 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:28:24,106 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:28:24,504 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 125 [2020-10-13 13:28:24,637 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2020-10-13 13:28:24,799 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2020-10-13 13:28:24,981 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2020-10-13 13:28:25,145 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2020-10-13 13:28:25,338 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 79 [2020-10-13 13:28:25,476 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2020-10-13 13:28:25,919 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2020-10-13 13:28:29,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:28:29,631 INFO L93 Difference]: Finished difference Result 133492 states and 175755 transitions. [2020-10-13 13:28:29,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 13:28:29,632 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 153 [2020-10-13 13:28:29,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:28:29,775 INFO L225 Difference]: With dead ends: 133492 [2020-10-13 13:28:29,776 INFO L226 Difference]: Without dead ends: 61406 [2020-10-13 13:28:29,862 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=211, Invalid=545, Unknown=0, NotChecked=0, Total=756 [2020-10-13 13:28:29,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61406 states. [2020-10-13 13:28:34,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61406 to 61054. [2020-10-13 13:28:34,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61054 states. [2020-10-13 13:28:34,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61054 states to 61054 states and 79886 transitions. [2020-10-13 13:28:34,456 INFO L78 Accepts]: Start accepts. Automaton has 61054 states and 79886 transitions. Word has length 153 [2020-10-13 13:28:34,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:28:34,457 INFO L479 AbstractCegarLoop]: Abstraction has 61054 states and 79886 transitions. [2020-10-13 13:28:34,457 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-13 13:28:34,457 INFO L276 IsEmpty]: Start isEmpty. Operand 61054 states and 79886 transitions. [2020-10-13 13:28:34,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-13 13:28:34,467 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:28:34,467 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:28:34,467 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 13:28:34,467 INFO L427 AbstractCegarLoop]: === Iteration 20 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:28:34,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:28:34,468 INFO L82 PathProgramCache]: Analyzing trace with hash 156972810, now seen corresponding path program 2 times [2020-10-13 13:28:34,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:28:34,468 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [694582546] [2020-10-13 13:28:34,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:28:34,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:34,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:34,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:34,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:34,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:35,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:39,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:39,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-13 13:28:39,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:28:39,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-13 13:28:39,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:39,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:39,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-13 13:28:39,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 13:28:39,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:39,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:28:39,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:39,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:39,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:39,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:28:39,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:39,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:28:39,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:39,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:39,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:39,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:39,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:39,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:28:39,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:39,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:39,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:39,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 13:28:39,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:39,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:28:39,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:39,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:39,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:39,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 13:28:39,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:39,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 13:28:39,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:39,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:39,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:39,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:28:39,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:39,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:28:39,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:39,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:39,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:39,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:28:39,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:39,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 13:28:39,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:39,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:39,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:39,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:39,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:39,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:39,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:39,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:39,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:39,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:39,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:39,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:28:39,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:39,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:39,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:39,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:39,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:39,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:39,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:39,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:39,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:39,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:39,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:39,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 13:28:39,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:39,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:39,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:39,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:39,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:39,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:28:39,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:39,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:39,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:39,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:39,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:39,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:28:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:39,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:39,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:39,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:39,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:39,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:39,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:39,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:39,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:39,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:39,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:39,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-13 13:28:39,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:39,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:39,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:39,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:39,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:39,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:28:39,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:39,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:39,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:28:39,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:28:39,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:39,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 13:28:39,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:39,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:39,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:39,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:28:39,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:39,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:28:39,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:39,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:39,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:28:39,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:39,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:39,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-13 13:28:39,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:39,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:39,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:39,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:28:39,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:39,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:28:39,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:39,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:39,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 13:28:39,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:39,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:39,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:28:39,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:39,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:39,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:39,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:28:39,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:39,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:28:39,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:39,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:39,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:28:39,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:39,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:39,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-13 13:28:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:39,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:39,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:39,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:28:39,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:39,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:28:39,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:39,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:39,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 13:28:39,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:39,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:39,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-13 13:28:39,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:39,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:39,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:39,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:39,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:39,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:28:39,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:39,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:39,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:39,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:39,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:39,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-13 13:28:39,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:39,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:39,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:39,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:39,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:39,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:28:39,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:39,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:39,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:39,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:39,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:39,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-13 13:28:39,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:39,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:39,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:39,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:39,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:39,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:28:39,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:39,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:39,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:39,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:39,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:39,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-13 13:28:39,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:39,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:39,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:39,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:28:39,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:39,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:28:39,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:39,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:39,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:28:39,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:39,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:39,881 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-13 13:28:39,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [694582546] [2020-10-13 13:28:39,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:28:39,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-13 13:28:39,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985673210] [2020-10-13 13:28:39,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:28:39,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:28:39,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:28:39,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:28:39,883 INFO L87 Difference]: Start difference. First operand 61054 states and 79886 transitions. Second operand 11 states. [2020-10-13 13:28:40,038 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:28:45,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:28:45,115 INFO L93 Difference]: Finished difference Result 88026 states and 115288 transitions. [2020-10-13 13:28:45,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 13:28:45,115 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 153 [2020-10-13 13:28:45,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:28:45,175 INFO L225 Difference]: With dead ends: 88026 [2020-10-13 13:28:45,175 INFO L226 Difference]: Without dead ends: 27188 [2020-10-13 13:28:45,233 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-10-13 13:28:45,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27188 states. [2020-10-13 13:28:47,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27188 to 26978. [2020-10-13 13:28:47,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26978 states. [2020-10-13 13:28:47,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26978 states to 26978 states and 34470 transitions. [2020-10-13 13:28:47,127 INFO L78 Accepts]: Start accepts. Automaton has 26978 states and 34470 transitions. Word has length 153 [2020-10-13 13:28:47,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:28:47,127 INFO L479 AbstractCegarLoop]: Abstraction has 26978 states and 34470 transitions. [2020-10-13 13:28:47,127 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:28:47,127 INFO L276 IsEmpty]: Start isEmpty. Operand 26978 states and 34470 transitions. [2020-10-13 13:28:47,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-13 13:28:47,132 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:28:47,132 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:28:47,132 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 13:28:47,132 INFO L427 AbstractCegarLoop]: === Iteration 21 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:28:47,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:28:47,132 INFO L82 PathProgramCache]: Analyzing trace with hash 153878846, now seen corresponding path program 1 times [2020-10-13 13:28:47,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:28:47,133 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [162608588] [2020-10-13 13:28:47,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:28:47,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:47,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:47,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:47,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:47,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:52,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:52,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-13 13:28:52,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:28:52,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 13:28:52,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:52,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-13 13:28:52,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 13:28:52,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-13 13:28:52,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:52,448 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-13 13:28:52,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:28:52,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:52,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:52,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:52,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:28:52,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:52,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:28:52,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:52,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:52,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:52,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:52,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:52,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:28:52,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:52,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:52,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:52,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 13:28:52,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:52,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 13:28:52,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:52,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:28:52,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:52,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 13:28:52,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:52,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 13:28:52,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:52,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:52,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:52,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:28:52,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:52,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:28:52,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:52,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:52,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:52,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:28:52,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:52,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 13:28:52,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:52,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:52,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:52,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:52,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:52,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 13:28:52,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:52,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:28:52,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:28:52,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:28:52,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:52,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 13:28:52,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:52,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:52,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:52,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:52,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:52,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:28:52,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:52,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:52,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:52,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:52,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:52,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 13:28:52,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:52,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:52,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:52,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:52,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:52,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 13:28:52,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:52,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:52,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:52,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:52,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:52,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 13:28:52,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:52,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:52,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:52,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:52,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:52,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:28:52,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:52,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:52,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:52,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:52,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:53,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-13 13:28:53,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:53,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:53,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:53,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:53,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:53,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:28:53,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:53,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:28:53,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:53,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:28:53,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:28:53,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 13:28:53,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:53,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:53,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:53,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:28:53,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:53,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:28:53,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:53,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:53,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:53,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:28:53,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:53,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-13 13:28:53,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:53,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:53,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:53,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:28:53,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:53,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:28:53,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:53,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:28:53,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:28:53,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:28:53,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:53,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 13:28:53,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:53,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:53,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:53,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:28:53,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:53,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-13 13:28:53,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:53,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:28:53,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:28:53,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 13:28:53,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:53,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-13 13:28:53,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:53,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:53,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:53,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:28:53,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:53,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:28:53,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:53,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:28:53,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:28:53,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:28:53,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:53,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-13 13:28:53,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:53,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:53,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:53,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:53,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:53,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:53,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:53,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:53,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:53,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:53,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:53,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-13 13:28:53,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:53,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:53,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:53,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:53,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:53,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:53,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:53,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:53,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:53,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:53,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:53,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 13:28:53,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:53,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:53,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:53,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:28:53,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:53,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:28:53,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:53,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:53,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:28:53,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:53,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:53,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-13 13:28:53,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:28:53,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:28:53,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:28:53,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:28:53,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:28:53,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:28:53,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:28:53,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:28:53,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:28:53,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:28:53,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:28:53,498 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-13 13:28:53,498 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [162608588] [2020-10-13 13:28:53,498 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 13:28:53,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-13 13:28:53,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851432260] [2020-10-13 13:28:53,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-13 13:28:53,503 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:28:53,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-13 13:28:53,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2020-10-13 13:28:53,504 INFO L87 Difference]: Start difference. First operand 26978 states and 34470 transitions. Second operand 25 states. [2020-10-13 13:28:53,766 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:28:54,082 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:28:54,392 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-13 13:28:54,739 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-13 13:28:55,193 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 133 [2020-10-13 13:28:55,364 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2020-10-13 13:28:55,671 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-13 13:28:57,114 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2020-10-13 13:28:57,535 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-13 13:28:58,309 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-13 13:28:58,444 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 13:29:01,728 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-13 13:29:06,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:29:06,562 INFO L93 Difference]: Finished difference Result 80978 states and 103799 transitions. [2020-10-13 13:29:06,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2020-10-13 13:29:06,562 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 154 [2020-10-13 13:29:06,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:29:06,705 INFO L225 Difference]: With dead ends: 80978 [2020-10-13 13:29:06,706 INFO L226 Difference]: Without dead ends: 72912 [2020-10-13 13:29:06,729 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1480 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=846, Invalid=5006, Unknown=0, NotChecked=0, Total=5852 [2020-10-13 13:29:06,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72912 states. [2020-10-13 13:29:11,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72912 to 68420. [2020-10-13 13:29:11,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68420 states. [2020-10-13 13:29:11,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68420 states to 68420 states and 87856 transitions. [2020-10-13 13:29:11,623 INFO L78 Accepts]: Start accepts. Automaton has 68420 states and 87856 transitions. Word has length 154 [2020-10-13 13:29:11,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:29:11,623 INFO L479 AbstractCegarLoop]: Abstraction has 68420 states and 87856 transitions. [2020-10-13 13:29:11,623 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-13 13:29:11,623 INFO L276 IsEmpty]: Start isEmpty. Operand 68420 states and 87856 transitions. [2020-10-13 13:29:11,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-13 13:29:11,631 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:29:11,631 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:29:11,631 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 13:29:11,631 INFO L427 AbstractCegarLoop]: === Iteration 22 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:29:11,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:29:11,632 INFO L82 PathProgramCache]: Analyzing trace with hash -572834190, now seen corresponding path program 1 times [2020-10-13 13:29:11,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:29:11,632 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1820259848] [2020-10-13 13:29:11,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:29:11,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:29:11,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:11,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:11,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:11,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:29:15,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking...