/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-var-start-time.5.2.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 13:33:09,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 13:33:09,073 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 13:33:09,097 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 13:33:09,097 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 13:33:09,098 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 13:33:09,099 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 13:33:09,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 13:33:09,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 13:33:09,103 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 13:33:09,104 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 13:33:09,105 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 13:33:09,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 13:33:09,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 13:33:09,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 13:33:09,110 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 13:33:09,111 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 13:33:09,111 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 13:33:09,113 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 13:33:09,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 13:33:09,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 13:33:09,122 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 13:33:09,123 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 13:33:09,123 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 13:33:09,126 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 13:33:09,126 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 13:33:09,126 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 13:33:09,127 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 13:33:09,127 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 13:33:09,128 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 13:33:09,128 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 13:33:09,129 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 13:33:09,130 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 13:33:09,130 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 13:33:09,131 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 13:33:09,132 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 13:33:09,132 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 13:33:09,132 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 13:33:09,133 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 13:33:09,133 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 13:33:09,134 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 13:33:09,135 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 13:33:09,157 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 13:33:09,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 13:33:09,158 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 13:33:09,159 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 13:33:09,159 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 13:33:09,159 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 13:33:09,159 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 13:33:09,160 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 13:33:09,160 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 13:33:09,160 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 13:33:09,160 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 13:33:09,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 13:33:09,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 13:33:09,161 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 13:33:09,161 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 13:33:09,161 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 13:33:09,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 13:33:09,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 13:33:09,162 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 13:33:09,162 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 13:33:09,162 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 13:33:09,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 13:33:09,163 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 13:33:09,163 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 13:33:09,163 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 13:33:09,163 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 13:33:09,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 13:33:09,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 13:33:09,164 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 13:33:09,164 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 13:33:09,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 13:33:09,470 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 13:33:09,474 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 13:33:09,478 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 13:33:09,480 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 13:33:09,481 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c [2020-10-13 13:33:09,551 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/beb78901c/5099763f480e4969b00e5ebf249279aa/FLAGc4e5f445a [2020-10-13 13:33:10,051 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 13:33:10,052 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c [2020-10-13 13:33:10,064 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/beb78901c/5099763f480e4969b00e5ebf249279aa/FLAGc4e5f445a [2020-10-13 13:33:10,398 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/beb78901c/5099763f480e4969b00e5ebf249279aa [2020-10-13 13:33:10,408 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 13:33:10,410 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 13:33:10,411 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 13:33:10,411 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 13:33:10,415 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 13:33:10,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:33:10" (1/1) ... [2020-10-13 13:33:10,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a11671b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:33:10, skipping insertion in model container [2020-10-13 13:33:10,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:33:10" (1/1) ... [2020-10-13 13:33:10,427 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 13:33:10,487 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 13:33:10,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:33:10,744 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 13:33:10,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:33:10,919 INFO L208 MainTranslator]: Completed translation [2020-10-13 13:33:10,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:33:10 WrapperNode [2020-10-13 13:33:10,920 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 13:33:10,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 13:33:10,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 13:33:10,921 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 13:33:10,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:33:10" (1/1) ... [2020-10-13 13:33:10,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:33:10" (1/1) ... [2020-10-13 13:33:10,951 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:33:10" (1/1) ... [2020-10-13 13:33:10,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:33:10" (1/1) ... [2020-10-13 13:33:10,966 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:33:10" (1/1) ... [2020-10-13 13:33:10,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:33:10" (1/1) ... [2020-10-13 13:33:10,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:33:10" (1/1) ... [2020-10-13 13:33:10,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 13:33:10,990 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 13:33:10,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 13:33:10,990 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 13:33:10,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:33:10" (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 13:33:11,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 13:33:11,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 13:33:11,058 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 13:33:11,058 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-13 13:33:11,058 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-13 13:33:11,059 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-13 13:33:11,059 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-13 13:33:11,061 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-13 13:33:11,061 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-13 13:33:11,061 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-13 13:33:11,061 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 13:33:11,061 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-13 13:33:11,062 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 13:33:11,062 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 13:33:11,062 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-13 13:33:11,063 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-13 13:33:11,063 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 13:33:11,063 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 13:33:11,063 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-13 13:33:11,063 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-13 13:33:11,064 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-13 13:33:11,064 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-13 13:33:11,065 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-13 13:33:11,065 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-13 13:33:11,065 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-13 13:33:11,067 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-13 13:33:11,067 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-13 13:33:11,067 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 13:33:11,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 13:33:11,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 13:33:11,771 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 13:33:11,772 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 13:33:11,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:33:11 BoogieIcfgContainer [2020-10-13 13:33:11,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 13:33:11,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 13:33:11,780 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 13:33:11,783 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 13:33:11,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:33:10" (1/3) ... [2020-10-13 13:33:11,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e8d4de9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:33:11, skipping insertion in model container [2020-10-13 13:33:11,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:33:10" (2/3) ... [2020-10-13 13:33:11,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e8d4de9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:33:11, skipping insertion in model container [2020-10-13 13:33:11,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:33:11" (3/3) ... [2020-10-13 13:33:11,787 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c [2020-10-13 13:33:11,799 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 13:33:11,807 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 13:33:11,822 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 13:33:11,851 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 13:33:11,852 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 13:33:11,852 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 13:33:11,852 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 13:33:11,853 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 13:33:11,853 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 13:33:11,853 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 13:33:11,853 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 13:33:11,878 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states. [2020-10-13 13:33:11,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-13 13:33:11,890 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:33:11,891 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 13:33:11,892 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:33:11,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:33:11,898 INFO L82 PathProgramCache]: Analyzing trace with hash 2072684470, now seen corresponding path program 1 times [2020-10-13 13:33:11,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:33:11,908 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [574718380] [2020-10-13 13:33:11,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:33:12,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:12,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:12,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:12,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-13 13:33:12,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:12,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 337 [2020-10-13 13:33:12,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:12,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:12,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-13 13:33:12,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:12,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-13 13:33:12,731 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:33:12,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:33:12,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:12,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:12,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:12,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:33:12,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:12,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 13:33:12,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:12,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:12,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:12,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:12,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:12,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:33:12,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:12,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:12,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:12,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:33:12,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:12,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:33:12,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:12,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:12,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:12,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:12,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:12,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-13 13:33:12,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:12,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:12,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:12,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:33:12,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:12,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:33:12,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:12,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:12,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:33:12,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:12,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:33:12,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-13 13:33:12,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:12,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:12,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:12,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:33:12,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:12,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:33:12,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:12,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:12,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:33:12,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:12,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:12,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 13:33:12,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:12,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:12,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:12,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:33:12,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:12,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:33:12,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:12,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:12,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:33:12,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:12,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:33:12,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 13:33:12,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:12,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:12,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:12,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:33:12,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:12,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:33:12,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:12,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:12,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:33:12,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:12,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:12,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:33:12,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:12,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:12,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:12,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:33:12,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:12,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:33:12,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:12,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:12,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:33:12,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:12,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:33:12,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-13 13:33:12,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:12,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:12,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:12,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:33:12,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:12,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:33:12,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:12,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:12,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:33:12,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:12,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:33:12,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:33:12,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:12,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:12,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:12,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:33:12,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:12,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:33:12,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:12,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:12,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:33:12,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:12,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:33:13,020 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 13:33:13,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [574718380] [2020-10-13 13:33:13,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:33:13,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 13:33:13,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020097895] [2020-10-13 13:33:13,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 13:33:13,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:33:13,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 13:33:13,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-13 13:33:13,052 INFO L87 Difference]: Start difference. First operand 156 states. Second operand 8 states. [2020-10-13 13:33:14,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:33:14,420 INFO L93 Difference]: Finished difference Result 270 states and 400 transitions. [2020-10-13 13:33:14,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 13:33:14,423 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-10-13 13:33:14,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:33:14,443 INFO L225 Difference]: With dead ends: 270 [2020-10-13 13:33:14,444 INFO L226 Difference]: Without dead ends: 156 [2020-10-13 13:33:14,448 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 13:33:14,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-10-13 13:33:14,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 151. [2020-10-13 13:33:14,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2020-10-13 13:33:14,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 229 transitions. [2020-10-13 13:33:14,513 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 229 transitions. Word has length 67 [2020-10-13 13:33:14,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:33:14,513 INFO L479 AbstractCegarLoop]: Abstraction has 151 states and 229 transitions. [2020-10-13 13:33:14,513 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 13:33:14,514 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 229 transitions. [2020-10-13 13:33:14,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-13 13:33:14,517 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:33:14,517 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] [2020-10-13 13:33:14,518 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 13:33:14,518 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:33:14,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:33:14,519 INFO L82 PathProgramCache]: Analyzing trace with hash -683942796, now seen corresponding path program 1 times [2020-10-13 13:33:14,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:33:14,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1918272734] [2020-10-13 13:33:14,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:33:14,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:14,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:15,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:15,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-13 13:33:15,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:15,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 749 [2020-10-13 13:33:15,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:15,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:33:15,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 13:33:15,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:33:15,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:33:15,488 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:33:15,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:33:15,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:15,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:15,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:15,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:33:15,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:15,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:33:15,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:15,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:15,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:15,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:15,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:33:15,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:33:15,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:15,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:15,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:15,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:33:15,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:15,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:33:15,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:15,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:33:15,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:15,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:33:15,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:15,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-13 13:33:15,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:15,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:15,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:15,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:33:15,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:15,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:33:15,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:15,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:33:15,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:33:15,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:33:15,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:15,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-13 13:33:15,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:15,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:15,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:15,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:33:15,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:15,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:33:15,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:15,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:15,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:33:15,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:15,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:15,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 13:33:15,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:15,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:15,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:15,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:33:15,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:15,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:33:15,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:15,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:15,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:33:15,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:15,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:15,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 13:33:15,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:15,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:15,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:15,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:33:15,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:15,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:33:15,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:15,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:15,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:33:15,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:15,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:15,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 13:33:15,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:15,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:15,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:15,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:33:15,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:15,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:33:15,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:15,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:15,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:33:15,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:15,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:15,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-13 13:33:15,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:15,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:15,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:15,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:33:15,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:15,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:33:15,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:15,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:15,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:33:15,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:15,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:15,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 13:33:15,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:15,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:15,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:15,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:33:15,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:15,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:33:15,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:15,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:15,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:33:15,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:15,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:15,790 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 13:33:15,790 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1918272734] [2020-10-13 13:33:15,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:33:15,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-13 13:33:15,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291559526] [2020-10-13 13:33:15,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 13:33:15,793 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:33:15,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 13:33:15,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-13 13:33:15,794 INFO L87 Difference]: Start difference. First operand 151 states and 229 transitions. Second operand 14 states. [2020-10-13 13:33:16,034 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-13 13:33:16,189 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-13 13:33:16,458 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-13 13:33:16,642 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-13 13:33:18,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:33:18,338 INFO L93 Difference]: Finished difference Result 274 states and 406 transitions. [2020-10-13 13:33:18,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 13:33:18,339 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 67 [2020-10-13 13:33:18,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:33:18,343 INFO L225 Difference]: With dead ends: 274 [2020-10-13 13:33:18,343 INFO L226 Difference]: Without dead ends: 167 [2020-10-13 13:33:18,345 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-13 13:33:18,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-10-13 13:33:18,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 151. [2020-10-13 13:33:18,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2020-10-13 13:33:18,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 197 transitions. [2020-10-13 13:33:18,370 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 197 transitions. Word has length 67 [2020-10-13 13:33:18,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:33:18,370 INFO L479 AbstractCegarLoop]: Abstraction has 151 states and 197 transitions. [2020-10-13 13:33:18,370 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 13:33:18,371 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 197 transitions. [2020-10-13 13:33:18,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-13 13:33:18,374 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:33:18,374 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] [2020-10-13 13:33:18,375 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 13:33:18,375 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:33:18,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:33:18,375 INFO L82 PathProgramCache]: Analyzing trace with hash 129397197, now seen corresponding path program 1 times [2020-10-13 13:33:18,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:33:18,376 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [945331144] [2020-10-13 13:33:18,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:33:18,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:18,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:18,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:18,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:18,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:20,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:23,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:23,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-13 13:33:23,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:33:23,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-13 13:33:23,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:23,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:33:23,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-13 13:33:23,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-13 13:33:23,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:33:23,616 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:33:23,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:33:23,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:23,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:23,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:23,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:33:23,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:23,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:33:23,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:23,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:23,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:23,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:23,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:33:23,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:33:23,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:23,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:23,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:23,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:33:23,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:23,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 13:33:23,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:23,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:33:23,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:23,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 13:33:23,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:33:23,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 13:33:23,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:23,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:23,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:23,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:33:23,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:23,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:33:23,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:23,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:33:23,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:23,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:33:23,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:33:23,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-13 13:33:23,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:23,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:23,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:23,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:33:23,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:23,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:33:23,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:23,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:33:23,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:23,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:33:23,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:33:23,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-13 13:33:23,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:23,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:23,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:23,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:33:23,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:23,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 13:33:23,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:23,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:33:23,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:33:23,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:33:23,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:33:23,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 13:33:23,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:23,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:23,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:23,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:33:23,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:23,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:33:23,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:23,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:23,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:33:23,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:23,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:23,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 13:33:23,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:23,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:23,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:23,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:33:23,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:23,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:33:23,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:23,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:23,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:33:23,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:23,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:23,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-13 13:33:23,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:23,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:23,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:23,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:33:23,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:23,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:33:23,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:23,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:23,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:33:23,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:23,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:23,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 13:33:23,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:23,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:23,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:23,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:33:23,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:23,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:33:23,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:23,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:23,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:33:23,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:23,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:24,022 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 13:33:24,024 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [945331144] [2020-10-13 13:33:24,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:33:24,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:33:24,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779428304] [2020-10-13 13:33:24,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:33:24,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:33:24,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:33:24,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:33:24,027 INFO L87 Difference]: Start difference. First operand 151 states and 197 transitions. Second operand 11 states. [2020-10-13 13:33:24,188 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 13:33:26,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:33:26,149 INFO L93 Difference]: Finished difference Result 350 states and 482 transitions. [2020-10-13 13:33:26,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 13:33:26,149 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 98 [2020-10-13 13:33:26,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:33:26,156 INFO L225 Difference]: With dead ends: 350 [2020-10-13 13:33:26,156 INFO L226 Difference]: Without dead ends: 249 [2020-10-13 13:33:26,163 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-13 13:33:26,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-10-13 13:33:26,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 238. [2020-10-13 13:33:26,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-10-13 13:33:26,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 323 transitions. [2020-10-13 13:33:26,219 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 323 transitions. Word has length 98 [2020-10-13 13:33:26,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:33:26,221 INFO L479 AbstractCegarLoop]: Abstraction has 238 states and 323 transitions. [2020-10-13 13:33:26,221 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:33:26,221 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 323 transitions. [2020-10-13 13:33:26,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-13 13:33:26,230 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:33:26,230 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 13:33:26,230 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 13:33:26,231 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:33:26,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:33:26,231 INFO L82 PathProgramCache]: Analyzing trace with hash -403061684, now seen corresponding path program 1 times [2020-10-13 13:33:26,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:33:26,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1779592457] [2020-10-13 13:33:26,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:33:26,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:26,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:26,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:26,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:26,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:31,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:31,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-13 13:33:31,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:33:31,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-13 13:33:31,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:31,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:33:31,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-13 13:33:31,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-13 13:33:31,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:31,475 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:33:31,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:33:31,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:31,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:31,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:31,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:33:31,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:31,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 13:33:31,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:31,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:31,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:31,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:31,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:31,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:33:31,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:31,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:31,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:31,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:33:31,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:31,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 13:33:31,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:31,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:33:31,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:31,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 13:33:31,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:31,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 13:33:31,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:31,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:31,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:31,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:33:31,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:31,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:33:31,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:31,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:33:31,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:31,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:33:31,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:31,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-13 13:33:31,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:31,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:31,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:31,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:33:31,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:31,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:33:31,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:31,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:33:31,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:31,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:33:31,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:31,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-13 13:33:31,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:31,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:31,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:31,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:33:31,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:31,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:33:31,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:31,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:33:31,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:31,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:33:31,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:31,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:33:31,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:31,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:31,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:31,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:33:31,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:31,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:33:31,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:31,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:33:31,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:33:31,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:33:31,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:31,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-13 13:33:31,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:31,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:31,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:31,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:33:31,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:31,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:33:31,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:31,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:31,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:33:31,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:31,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:31,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-13 13:33:31,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:31,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:31,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:31,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:33:31,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:31,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:33:31,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:31,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:31,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:33:31,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:31,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:31,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-13 13:33:31,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:31,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:31,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:31,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:33:31,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:31,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:33:31,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:31,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:31,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:33:31,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:31,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:31,782 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 13:33:31,783 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1779592457] [2020-10-13 13:33:31,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:33:31,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:33:31,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146756492] [2020-10-13 13:33:31,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:33:31,786 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:33:31,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:33:31,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:33:31,786 INFO L87 Difference]: Start difference. First operand 238 states and 323 transitions. Second operand 11 states. [2020-10-13 13:33:31,939 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 13:33:33,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:33:33,919 INFO L93 Difference]: Finished difference Result 606 states and 849 transitions. [2020-10-13 13:33:33,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 13:33:33,921 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 99 [2020-10-13 13:33:33,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:33:33,925 INFO L225 Difference]: With dead ends: 606 [2020-10-13 13:33:33,925 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 13:33:33,927 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-13 13:33:33,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 13:33:33,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 400. [2020-10-13 13:33:33,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 400 states. [2020-10-13 13:33:33,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 555 transitions. [2020-10-13 13:33:33,961 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 555 transitions. Word has length 99 [2020-10-13 13:33:33,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:33:33,962 INFO L479 AbstractCegarLoop]: Abstraction has 400 states and 555 transitions. [2020-10-13 13:33:33,962 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:33:33,962 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 555 transitions. [2020-10-13 13:33:33,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-13 13:33:33,963 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:33:33,964 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 13:33:33,964 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 13:33:33,964 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:33:33,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:33:33,965 INFO L82 PathProgramCache]: Analyzing trace with hash 1964505553, now seen corresponding path program 1 times [2020-10-13 13:33:33,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:33:33,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1417716457] [2020-10-13 13:33:33,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:33:33,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:34,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:34,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:34,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:36,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:36,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-13 13:33:36,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 13:33:36,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2557 [2020-10-13 13:33:36,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:36,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:33:36,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-13 13:33:36,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 13:33:36,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:36,721 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:33:36,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:33:36,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:36,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:36,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:36,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:33:36,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:36,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:33:36,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:36,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:36,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:36,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:36,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:36,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:33:36,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:36,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:36,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:36,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:33:36,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:36,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:33:36,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:36,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:33:36,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:36,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 13:33:36,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:36,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 13:33:36,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:36,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:36,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:36,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:33:36,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:36,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:33:36,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:36,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:33:36,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:36,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:33:36,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:36,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-13 13:33:36,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:36,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:36,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:36,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:33:36,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:36,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:33:36,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:36,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:33:36,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:36,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:33:36,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:36,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-13 13:33:36,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:36,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:36,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:36,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:33:36,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:36,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:33:36,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:36,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:33:36,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:36,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:33:36,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:36,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:33:36,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:36,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:36,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:36,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:33:36,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:36,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:33:36,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:36,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:33:36,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:36,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:33:36,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:36,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-13 13:33:36,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:36,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:36,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:36,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:33:36,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:36,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:33:36,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:36,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:33:36,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:33:36,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:33:36,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:36,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 13:33:36,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:36,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:36,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:36,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:33:36,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:36,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:33:36,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:36,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:36,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:33:36,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:36,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:36,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-13 13:33:36,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:36,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:36,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:36,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:33:36,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:36,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:33:36,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:36,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:36,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:33:36,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:36,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:36,992 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 13:33:36,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1417716457] [2020-10-13 13:33:36,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:33:36,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:33:36,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575424086] [2020-10-13 13:33:36,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:33:36,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:33:36,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:33:36,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:33:36,994 INFO L87 Difference]: Start difference. First operand 400 states and 555 transitions. Second operand 11 states. [2020-10-13 13:33:37,167 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 13:33:38,034 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-13 13:33:39,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:33:39,478 INFO L93 Difference]: Finished difference Result 1080 states and 1521 transitions. [2020-10-13 13:33:39,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 13:33:39,480 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 100 [2020-10-13 13:33:39,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:33:39,485 INFO L225 Difference]: With dead ends: 1080 [2020-10-13 13:33:39,485 INFO L226 Difference]: Without dead ends: 730 [2020-10-13 13:33:39,487 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-13 13:33:39,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2020-10-13 13:33:39,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 700. [2020-10-13 13:33:39,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 700 states. [2020-10-13 13:33:39,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 979 transitions. [2020-10-13 13:33:39,543 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 979 transitions. Word has length 100 [2020-10-13 13:33:39,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:33:39,543 INFO L479 AbstractCegarLoop]: Abstraction has 700 states and 979 transitions. [2020-10-13 13:33:39,543 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:33:39,543 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 979 transitions. [2020-10-13 13:33:39,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-13 13:33:39,545 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:33:39,545 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 13:33:39,545 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 13:33:39,545 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:33:39,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:33:39,546 INFO L82 PathProgramCache]: Analyzing trace with hash -821500364, now seen corresponding path program 1 times [2020-10-13 13:33:39,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:33:39,546 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1116333547] [2020-10-13 13:33:39,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:33:39,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:39,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:39,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:40,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:40,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-13 13:33:40,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:33:40,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1245 [2020-10-13 13:33:40,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:40,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:33:40,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-13 13:33:40,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 13:33:40,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:40,969 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:33:40,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:33:40,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:40,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:40,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:40,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:33:40,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:40,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:33:40,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:40,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:40,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:40,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:40,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:40,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:33:40,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:40,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:41,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:41,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:33:41,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:41,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:33:41,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:41,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:33:41,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:41,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 13:33:41,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:41,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 13:33:41,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:41,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:41,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:41,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:33:41,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:41,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:33:41,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:41,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:33:41,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:41,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:33:41,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:41,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-13 13:33:41,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:41,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:41,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:41,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:33:41,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:41,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:33:41,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:41,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:33:41,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:41,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:33:41,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:41,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-13 13:33:41,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:41,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:41,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:41,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:33:41,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:41,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:33:41,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:41,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:33:41,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:41,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:33:41,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:41,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:33:41,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:41,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:41,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:41,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:33:41,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:41,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:33:41,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:41,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:33:41,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:41,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:33:41,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:41,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-13 13:33:41,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:41,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:41,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:41,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:33:41,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:41,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:33:41,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:41,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:33:41,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:41,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:33:41,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:41,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 13:33:41,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:41,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:41,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:41,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:33:41,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:41,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:33:41,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:41,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:33:41,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:33:41,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:33:41,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:41,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-13 13:33:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:41,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:41,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:41,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:33:41,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:41,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:33:41,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:41,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:41,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:33:41,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:41,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:41,269 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 13:33:41,270 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1116333547] [2020-10-13 13:33:41,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:33:41,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:33:41,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65558154] [2020-10-13 13:33:41,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:33:41,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:33:41,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:33:41,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:33:41,275 INFO L87 Difference]: Start difference. First operand 700 states and 979 transitions. Second operand 11 states. [2020-10-13 13:33:41,452 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 13:33:42,413 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-10-13 13:33:43,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:33:43,788 INFO L93 Difference]: Finished difference Result 1952 states and 2741 transitions. [2020-10-13 13:33:43,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 13:33:43,789 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 101 [2020-10-13 13:33:43,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:33:43,805 INFO L225 Difference]: With dead ends: 1952 [2020-10-13 13:33:43,806 INFO L226 Difference]: Without dead ends: 1302 [2020-10-13 13:33:43,810 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-13 13:33:43,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2020-10-13 13:33:43,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1252. [2020-10-13 13:33:43,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1252 states. [2020-10-13 13:33:43,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 1747 transitions. [2020-10-13 13:33:43,935 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 1747 transitions. Word has length 101 [2020-10-13 13:33:43,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:33:43,936 INFO L479 AbstractCegarLoop]: Abstraction has 1252 states and 1747 transitions. [2020-10-13 13:33:43,936 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:33:43,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 1747 transitions. [2020-10-13 13:33:43,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-13 13:33:43,937 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:33:43,938 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 13:33:43,938 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 13:33:43,938 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:33:43,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:33:43,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1472891859, now seen corresponding path program 1 times [2020-10-13 13:33:43,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:33:43,940 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [32932409] [2020-10-13 13:33:43,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:33:43,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:43,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:44,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:45,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:45,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-13 13:33:45,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:33:45,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1772 [2020-10-13 13:33:45,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:45,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:33:45,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 13:33:45,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 13:33:45,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:45,968 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:33:45,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:33:45,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:45,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:45,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:45,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:33:45,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:45,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:33:45,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:45,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:45,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:45,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:45,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:45,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:33:45,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:45,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:45,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:45,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:33:45,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:45,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:33:46,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:46,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:33:46,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:46,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 13:33:46,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:46,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 13:33:46,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:46,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:46,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:46,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:33:46,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:46,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:33:46,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:46,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:33:46,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:46,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:33:46,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:46,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-13 13:33:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:46,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:46,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:46,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:33:46,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:46,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:33:46,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:46,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:33:46,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:46,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:33:46,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:46,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-13 13:33:46,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:46,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:46,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:46,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:33:46,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:46,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:33:46,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:46,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:33:46,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:46,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:33:46,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:46,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:33:46,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:46,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:46,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:46,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:33:46,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:46,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:33:46,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:46,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:33:46,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:46,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:33:46,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:46,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-13 13:33:46,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:46,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:46,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:46,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:33:46,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:46,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:33:46,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:46,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:33:46,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:33:46,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 13:33:46,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:46,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 13:33:46,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:46,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:46,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:46,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:33:46,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:46,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:33:46,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:46,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:33:46,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 13:33:46,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:33:46,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:33:46,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-13 13:33:46,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:33:46,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:33:46,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:33:46,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:33:46,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:33:46,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:33:46,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:33:46,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:33:46,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:33:46,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:33:46,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:33:46,459 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 13:33:46,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [32932409] [2020-10-13 13:33:46,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:33:46,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-13 13:33:46,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766438160] [2020-10-13 13:33:46,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-13 13:33:46,462 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:33:46,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-13 13:33:46,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2020-10-13 13:33:46,463 INFO L87 Difference]: Start difference. First operand 1252 states and 1747 transitions. Second operand 18 states. [2020-10-13 13:33:46,768 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-13 13:33:46,954 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-13 13:33:47,599 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-13 13:33:48,112 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-13 13:33:48,285 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-13 13:33:48,451 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-13 13:33:49,301 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-13 13:33:49,493 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-13 13:33:49,697 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-13 13:33:49,903 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-13 13:33:50,084 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-13 13:33:50,284 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-13 13:33:50,466 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-13 13:33:51,956 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-13 13:33:52,156 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-13 13:33:52,338 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-13 13:33:52,576 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-13 13:33:52,770 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-13 13:33:52,953 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-13 13:33:53,126 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-13 13:33:53,343 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-13 13:33:53,527 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 13:33:53,719 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-13 13:33:53,890 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 13:33:54,382 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-13 13:33:54,555 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 13:33:54,946 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 13:33:55,117 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 13:33:57,687 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-13 13:33:57,891 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-13 13:33:58,111 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-13 13:33:58,302 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-13 13:33:58,515 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-13 13:33:58,728 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-13 13:33:58,938 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-13 13:33:59,150 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-13 13:33:59,373 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 13:33:59,581 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-13 13:33:59,772 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 13:34:00,001 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-13 13:34:00,202 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 13:34:00,400 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-13 13:34:00,743 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 13:34:00,938 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-13 13:34:01,155 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 13:34:01,358 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-13 13:34:01,552 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 13:34:01,760 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-13 13:34:02,162 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 13:34:02,334 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-13 13:34:02,518 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 13:34:02,689 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-13 13:34:02,875 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 13:34:03,063 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-13 13:34:03,935 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 13:34:04,117 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-13 13:34:04,928 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:34:05,111 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-13 13:34:12,382 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-13 13:34:31,597 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-10-13 13:34:37,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:34:37,334 INFO L93 Difference]: Finished difference Result 34874 states and 51109 transitions. [2020-10-13 13:34:37,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 303 states. [2020-10-13 13:34:37,336 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 102 [2020-10-13 13:34:37,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:34:37,545 INFO L225 Difference]: With dead ends: 34874 [2020-10-13 13:34:37,546 INFO L226 Difference]: Without dead ends: 33672 [2020-10-13 13:34:37,600 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 311 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42599 ImplicationChecksByTransitivity, 31.0s TimeCoverageRelationStatistics Valid=8249, Invalid=89407, Unknown=0, NotChecked=0, Total=97656 [2020-10-13 13:34:37,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33672 states. [2020-10-13 13:34:40,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33672 to 33119. [2020-10-13 13:34:40,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33119 states. [2020-10-13 13:34:40,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33119 states to 33119 states and 44521 transitions. [2020-10-13 13:34:40,866 INFO L78 Accepts]: Start accepts. Automaton has 33119 states and 44521 transitions. Word has length 102 [2020-10-13 13:34:40,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:34:40,868 INFO L479 AbstractCegarLoop]: Abstraction has 33119 states and 44521 transitions. [2020-10-13 13:34:40,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-13 13:34:40,868 INFO L276 IsEmpty]: Start isEmpty. Operand 33119 states and 44521 transitions. [2020-10-13 13:34:40,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-13 13:34:40,871 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:34:40,871 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 13:34:40,872 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 13:34:40,872 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:34:40,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:34:40,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1870947769, now seen corresponding path program 1 times [2020-10-13 13:34:40,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:34:40,874 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [113722071] [2020-10-13 13:34:40,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:34:40,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:34:40,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:40,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:42,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:34:42,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-13 13:34:42,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 13:34:42,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1377 [2020-10-13 13:34:42,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:34:42,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:34:42,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 13:34:42,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 13:34:42,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:34:42,443 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:34:42,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:34:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:34:42,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:42,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:34:42,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:34:42,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:34:42,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:34:42,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:34:42,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:34:42,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:34:42,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:34:42,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:34:42,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:34:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:34:42,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:42,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:34:42,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:34:42,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:34:42,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 13:34:42,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:34:42,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:34:42,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:34:42,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 13:34:42,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:34:42,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 13:34:42,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:34:42,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:42,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:34:42,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:34:42,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:34:42,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:34:42,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:34:42,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:34:42,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:34:42,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:34:42,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:34:42,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-13 13:34:42,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:34:42,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:42,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:34:42,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:34:42,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:34:42,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:34:42,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:34:42,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:34:42,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:34:42,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:34:42,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:34:42,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-13 13:34:42,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:34:42,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:42,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:34:42,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:34:42,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:34:42,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:34:42,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:34:42,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:34:42,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-13 13:34:42,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:34:42,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:34:42,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:34:42,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:34:42,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:42,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:34:42,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:34:42,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:34:42,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:34:42,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:34:42,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:34:42,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-13 13:34:42,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:34:42,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:34:42,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-13 13:34:42,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:34:42,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:42,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:34:42,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:34:42,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:34:42,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:34:42,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:34:42,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:34:42,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-13 13:34:42,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:34:42,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:34:42,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 13:34:42,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:34:42,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:42,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:34:42,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:34:42,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:34:42,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:34:42,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:34:42,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:34:42,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-13 13:34:42,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:34:42,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:34:42,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-13 13:34:42,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:34:42,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:42,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:34:42,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:34:42,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:34:42,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:34:42,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:34:42,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:34:42,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:34:42,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:34:42,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:34:42,805 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 13:34:42,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [113722071] [2020-10-13 13:34:42,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:34:42,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:34:42,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982847125] [2020-10-13 13:34:42,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:34:42,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:34:42,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:34:42,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:34:42,814 INFO L87 Difference]: Start difference. First operand 33119 states and 44521 transitions. Second operand 11 states. [2020-10-13 13:34:43,082 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-13 13:34:48,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:34:48,433 INFO L93 Difference]: Finished difference Result 96428 states and 130248 transitions. [2020-10-13 13:34:48,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 13:34:48,434 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 102 [2020-10-13 13:34:48,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:34:48,722 INFO L225 Difference]: With dead ends: 96428 [2020-10-13 13:34:48,722 INFO L226 Difference]: Without dead ends: 63368 [2020-10-13 13:34:48,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=152, Invalid=400, Unknown=0, NotChecked=0, Total=552 [2020-10-13 13:34:48,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63368 states. [2020-10-13 13:34:54,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63368 to 62393. [2020-10-13 13:34:54,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62393 states. [2020-10-13 13:34:54,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62393 states to 62393 states and 83582 transitions. [2020-10-13 13:34:54,382 INFO L78 Accepts]: Start accepts. Automaton has 62393 states and 83582 transitions. Word has length 102 [2020-10-13 13:34:54,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:34:54,382 INFO L479 AbstractCegarLoop]: Abstraction has 62393 states and 83582 transitions. [2020-10-13 13:34:54,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:34:54,382 INFO L276 IsEmpty]: Start isEmpty. Operand 62393 states and 83582 transitions. [2020-10-13 13:34:54,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-13 13:34:54,386 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:34:54,386 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:34:54,386 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 13:34:54,386 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:34:54,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:34:54,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1322110239, now seen corresponding path program 1 times [2020-10-13 13:34:54,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:34:54,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [189587429] [2020-10-13 13:34:54,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:34:54,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:34:54,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:55,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:34:55,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-13 13:34:55,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:34:55,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 751 [2020-10-13 13:34:55,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:34:55,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-13 13:34:55,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-13 13:34:55,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-13 13:34:55,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:34:55,352 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-13 13:34:55,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:34:55,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:34:55,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:55,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:34:55,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:34:55,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:34:55,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:34:55,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:34:55,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:34:55,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:34:55,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:34:55,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:34:55,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:34:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:34:55,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:55,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:34:55,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-13 13:34:55,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:34:55,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-13 13:34:55,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:34:55,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:34:55,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:34:55,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 13:34:55,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:34:55,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 13:34:55,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:34:55,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:55,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:34:55,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:34:55,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:34:55,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:34:55,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:34:55,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:34:55,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:34:55,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:34:55,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:34:55,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-13 13:34:55,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:34:55,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:55,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:34:55,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:34:55,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:34:55,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:34:55,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:34:55,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:34:55,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:34:55,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:34:55,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:34:55,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-13 13:34:55,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:34:55,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:55,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:34:55,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:34:55,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:34:55,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:34:55,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:34:55,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:34:55,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:34:55,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 13:34:55,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:34:55,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 13:34:55,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:34:55,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:55,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:34:55,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:34:55,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:34:55,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 13:34:55,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:34:55,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:34:55,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:34:55,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 13:34:55,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:34:55,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-13 13:34:55,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:34:55,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:56,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:34:56,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:34:56,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:34:56,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:34:56,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:34:56,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:34:56,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:34:56,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 13:34:56,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:34:56,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 13:34:56,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:34:56,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:56,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:34:56,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 13:34:56,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:34:56,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 13:34:56,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:34:56,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:34:56,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:34:56,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 13:34:56,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:34:56,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-13 13:34:56,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:34:56,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:34:56,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:34:56,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:34:56,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:34:56,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:34:56,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:34:56,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:34:56,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:34:56,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:34:56,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:34:56,236 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 13:34:56,237 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [189587429] [2020-10-13 13:34:56,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:34:56,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-13 13:34:56,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110029239] [2020-10-13 13:34:56,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-13 13:34:56,239 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:34:56,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-13 13:34:56,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2020-10-13 13:34:56,240 INFO L87 Difference]: Start difference. First operand 62393 states and 83582 transitions. Second operand 19 states. [2020-10-13 13:34:56,582 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:34:56,766 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-13 13:34:56,957 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-13 13:34:57,149 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 13:34:57,342 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-13 13:35:00,692 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-10-13 13:35:03,324 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2020-10-13 13:35:03,538 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-13 13:35:03,738 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-13 13:35:03,934 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-13 13:35:04,275 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-13 13:35:12,614 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-13 13:35:45,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:35:45,970 INFO L93 Difference]: Finished difference Result 655388 states and 885414 transitions. [2020-10-13 13:35:45,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2020-10-13 13:35:45,971 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 103 [2020-10-13 13:35:45,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:35:48,212 INFO L225 Difference]: With dead ends: 655388 [2020-10-13 13:35:48,213 INFO L226 Difference]: Without dead ends: 593322 [2020-10-13 13:35:48,446 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4030 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=2082, Invalid=9260, Unknown=0, NotChecked=0, Total=11342 [2020-10-13 13:35:48,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593322 states.