/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 SingleStatement --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=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:42:09,958 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:42:09,961 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:42:09,987 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:42:09,988 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:42:09,989 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:42:09,990 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:42:09,992 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:42:09,993 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:42:09,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:42:09,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:42:09,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:42:09,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:42:09,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:42:09,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:42:10,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:42:10,001 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:42:10,002 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:42:10,003 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:42:10,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:42:10,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:42:10,009 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:42:10,010 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:42:10,011 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:42:10,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:42:10,014 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:42:10,014 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:42:10,015 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:42:10,016 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:42:10,017 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:42:10,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:42:10,018 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:42:10,019 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:42:10,020 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:42:10,021 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:42:10,021 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:42:10,022 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:42:10,022 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:42:10,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:42:10,023 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:42:10,024 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:42:10,025 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 [2020-09-24 22:42:10,051 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:42:10,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:42:10,052 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:42:10,053 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:42:10,053 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:42:10,053 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:42:10,053 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:42:10,053 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:42:10,054 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:42:10,054 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:42:10,054 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:42:10,054 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:42:10,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:42:10,055 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:42:10,055 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:42:10,055 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:42:10,055 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:42:10,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:42:10,056 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:42:10,056 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:42:10,056 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:42:10,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:42:10,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:42:10,057 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:42:10,057 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:42:10,057 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:42:10,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:42:10,058 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:42:10,058 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:42:10,058 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 -> SingleStatement 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=HIGHLEXORDER;log-additional-information=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=HIGHLEXORDER;log-additional-information=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=HIGHLEXORDER;log-additional-information=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=HIGHLEXORDER;log-additional-information=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=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:42:10,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:42:10,570 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:42:10,575 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:42:10,577 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:42:10,577 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:42:10,578 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-1.c [2020-09-24 22:42:10,671 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7b31e3bd5/46bc9b84f0514acd9e251f16a3512947/FLAGcf64a16e1 [2020-09-24 22:42:11,240 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:42:11,245 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-1.c [2020-09-24 22:42:11,270 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7b31e3bd5/46bc9b84f0514acd9e251f16a3512947/FLAGcf64a16e1 [2020-09-24 22:42:11,564 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7b31e3bd5/46bc9b84f0514acd9e251f16a3512947 [2020-09-24 22:42:11,577 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:42:11,583 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:42:11,584 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:42:11,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:42:11,590 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:42:11,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:42:11" (1/1) ... [2020-09-24 22:42:11,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23a73c84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:42:11, skipping insertion in model container [2020-09-24 22:42:11,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:42:11" (1/1) ... [2020-09-24 22:42:11,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:42:11,679 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:42:12,033 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:42:12,051 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:42:12,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:42:12,245 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:42:12,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:42:12 WrapperNode [2020-09-24 22:42:12,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:42:12,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:42:12,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:42:12,247 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:42:12,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:42:12" (1/1) ... [2020-09-24 22:42:12,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:42:12" (1/1) ... [2020-09-24 22:42:12,277 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:42:12" (1/1) ... [2020-09-24 22:42:12,278 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:42:12" (1/1) ... [2020-09-24 22:42:12,298 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:42:12" (1/1) ... [2020-09-24 22:42:12,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:42:12" (1/1) ... [2020-09-24 22:42:12,315 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:42:12" (1/1) ... [2020-09-24 22:42:12,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:42:12,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:42:12,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:42:12,323 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:42:12,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:42:12" (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 [2020-09-24 22:42:12,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:42:12,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:42:12,398 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-09-24 22:42:12,398 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-09-24 22:42:12,398 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2020-09-24 22:42:12,398 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:42:12,399 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-09-24 22:42:12,399 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-09-24 22:42:12,400 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-09-24 22:42:12,400 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-09-24 22:42:12,400 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-09-24 22:42:12,400 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2020-09-24 22:42:12,401 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_CreateClose [2020-09-24 22:42:12,401 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_DispatchPassThrough [2020-09-24 22:42:12,401 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Power [2020-09-24 22:42:12,402 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2020-09-24 22:42:12,403 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_InternIoCtl [2020-09-24 22:42:12,403 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-09-24 22:42:12,404 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:42:12,404 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-24 22:42:12,404 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:42:12,404 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-24 22:42:12,405 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2020-09-24 22:42:12,405 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2020-09-24 22:42:12,405 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-09-24 22:42:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-09-24 22:42:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-09-24 22:42:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2020-09-24 22:42:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_CreateClose [2020-09-24 22:42:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_DispatchPassThrough [2020-09-24 22:42:12,407 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Power [2020-09-24 22:42:12,407 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_InternIoCtl [2020-09-24 22:42:12,407 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-09-24 22:42:12,407 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-09-24 22:42:12,407 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-09-24 22:42:12,407 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-09-24 22:42:12,407 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:42:12,408 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-09-24 22:42:12,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:42:12,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:42:12,738 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-24 22:42:12,812 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2020-09-24 22:42:12,812 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2020-09-24 22:42:12,845 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-24 22:42:12,992 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2020-09-24 22:42:12,992 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2020-09-24 22:42:12,994 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-24 22:42:13,045 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-09-24 22:42:13,045 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-09-24 22:42:13,052 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-24 22:42:13,108 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-09-24 22:42:13,108 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-09-24 22:42:13,260 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-24 22:42:13,284 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-09-24 22:42:13,284 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-09-24 22:42:13,317 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-24 22:42:13,452 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2020-09-24 22:42:13,453 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2020-09-24 22:42:13,477 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:42:13,477 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 22:42:13,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:42:13 BoogieIcfgContainer [2020-09-24 22:42:13,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:42:13,488 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:42:13,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:42:13,492 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:42:13,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:42:11" (1/3) ... [2020-09-24 22:42:13,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44c5b768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:42:13, skipping insertion in model container [2020-09-24 22:42:13,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:42:12" (2/3) ... [2020-09-24 22:42:13,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44c5b768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:42:13, skipping insertion in model container [2020-09-24 22:42:13,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:42:13" (3/3) ... [2020-09-24 22:42:13,496 INFO L109 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-1.c [2020-09-24 22:42:13,507 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:42:13,521 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:42:13,543 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:42:13,577 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:42:13,577 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:42:13,577 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:42:13,577 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:42:13,577 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:42:13,577 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:42:13,578 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:42:13,578 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:42:13,613 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states. [2020-09-24 22:42:13,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-24 22:42:13,625 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:42:13,626 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] [2020-09-24 22:42:13,626 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:42:13,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:42:13,632 INFO L82 PathProgramCache]: Analyzing trace with hash 337662663, now seen corresponding path program 1 times [2020-09-24 22:42:13,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:42:13,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [305993014] [2020-09-24 22:42:13,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:42:13,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:13,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:14,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:14,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:14,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:14,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:14,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:15,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:15,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-24 22:42:15,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 22:42:15,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1527 [2020-09-24 22:42:15,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:15,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:42:15,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-09-24 22:42:15,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 22:42:15,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 22:42:15,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:42:15,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:15,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:15,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:15,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:42:15,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:15,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:42:15,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:15,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:15,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:15,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:15,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:15,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 22:42:15,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:15,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:15,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:15,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 22:42:15,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:15,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 22:42:15,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:15,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:15,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:15,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:15,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:42:15,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:42:15,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [305993014] [2020-09-24 22:42:15,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:42:15,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 22:42:15,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711975702] [2020-09-24 22:42:15,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 22:42:15,660 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:42:15,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 22:42:15,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:42:15,689 INFO L87 Difference]: Start difference. First operand 666 states. Second operand 5 states. [2020-09-24 22:42:17,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:42:17,042 INFO L93 Difference]: Finished difference Result 1026 states and 1231 transitions. [2020-09-24 22:42:17,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 22:42:17,044 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 85 [2020-09-24 22:42:17,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:42:17,067 INFO L225 Difference]: With dead ends: 1026 [2020-09-24 22:42:17,067 INFO L226 Difference]: Without dead ends: 620 [2020-09-24 22:42:17,077 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 22:42:17,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2020-09-24 22:42:17,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 572. [2020-09-24 22:42:17,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 572 states. [2020-09-24 22:42:17,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 650 transitions. [2020-09-24 22:42:17,199 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 650 transitions. Word has length 85 [2020-09-24 22:42:17,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:42:17,200 INFO L479 AbstractCegarLoop]: Abstraction has 572 states and 650 transitions. [2020-09-24 22:42:17,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 22:42:17,201 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 650 transitions. [2020-09-24 22:42:17,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-09-24 22:42:17,207 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:42:17,207 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:42:17,207 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:42:17,208 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:42:17,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:42:17,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1711200696, now seen corresponding path program 1 times [2020-09-24 22:42:17,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:42:17,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [187054651] [2020-09-24 22:42:17,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:42:17,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:17,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:17,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:17,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-09-24 22:42:17,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:17,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 509 [2020-09-24 22:42:17,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:17,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:42:17,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-09-24 22:42:17,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 22:42:17,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:42:17,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:42:17,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:17,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:17,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:17,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:42:17,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:17,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:42:17,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:17,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:17,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:17,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:17,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:17,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 22:42:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:17,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:17,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:17,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 22:42:17,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:17,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 22:42:17,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:17,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:17,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:17,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:17,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:18,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-24 22:42:18,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:18,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:18,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:18,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 22:42:18,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:18,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:42:18,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:18,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:42:18,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:18,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 22:42:18,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:42:18,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:42:18,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [187054651] [2020-09-24 22:42:18,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:42:18,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 22:42:18,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719720710] [2020-09-24 22:42:18,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 22:42:18,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:42:18,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 22:42:18,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-24 22:42:18,059 INFO L87 Difference]: Start difference. First operand 572 states and 650 transitions. Second operand 6 states. [2020-09-24 22:42:18,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:42:18,987 INFO L93 Difference]: Finished difference Result 794 states and 909 transitions. [2020-09-24 22:42:18,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 22:42:18,988 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2020-09-24 22:42:18,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:42:18,999 INFO L225 Difference]: With dead ends: 794 [2020-09-24 22:42:18,999 INFO L226 Difference]: Without dead ends: 681 [2020-09-24 22:42:19,001 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:42:19,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2020-09-24 22:42:19,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 645. [2020-09-24 22:42:19,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 645 states. [2020-09-24 22:42:19,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 723 transitions. [2020-09-24 22:42:19,067 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 723 transitions. Word has length 136 [2020-09-24 22:42:19,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:42:19,068 INFO L479 AbstractCegarLoop]: Abstraction has 645 states and 723 transitions. [2020-09-24 22:42:19,068 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 22:42:19,068 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 723 transitions. [2020-09-24 22:42:19,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-24 22:42:19,072 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:42:19,072 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:42:19,073 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:42:19,073 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:42:19,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:42:19,073 INFO L82 PathProgramCache]: Analyzing trace with hash -472111805, now seen corresponding path program 1 times [2020-09-24 22:42:19,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:42:19,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1630297772] [2020-09-24 22:42:19,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:42:19,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:19,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:19,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:19,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 22:42:19,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:19,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 344 [2020-09-24 22:42:19,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:19,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:42:19,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-09-24 22:42:19,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 22:42:19,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:19,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:42:19,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:19,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:19,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:19,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:42:19,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:19,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:42:19,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:19,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:19,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:19,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:19,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:19,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 22:42:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:19,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:19,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:19,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 22:42:19,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:19,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 22:42:19,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:19,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:19,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:19,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:19,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:42:19,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-24 22:42:19,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:19,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:19,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:19,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 22:42:19,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:19,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:42:19,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:19,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:42:19,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:19,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 22:42:19,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:19,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:42:19,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1630297772] [2020-09-24 22:42:19,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:42:19,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 22:42:19,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482633361] [2020-09-24 22:42:19,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 22:42:19,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:42:19,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 22:42:19,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-24 22:42:19,827 INFO L87 Difference]: Start difference. First operand 645 states and 723 transitions. Second operand 6 states. [2020-09-24 22:42:20,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:42:20,955 INFO L93 Difference]: Finished difference Result 761 states and 850 transitions. [2020-09-24 22:42:20,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 22:42:20,957 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 158 [2020-09-24 22:42:20,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:42:20,967 INFO L225 Difference]: With dead ends: 761 [2020-09-24 22:42:20,967 INFO L226 Difference]: Without dead ends: 669 [2020-09-24 22:42:20,968 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:42:20,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2020-09-24 22:42:21,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 607. [2020-09-24 22:42:21,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 607 states. [2020-09-24 22:42:21,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 676 transitions. [2020-09-24 22:42:21,005 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 676 transitions. Word has length 158 [2020-09-24 22:42:21,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:42:21,007 INFO L479 AbstractCegarLoop]: Abstraction has 607 states and 676 transitions. [2020-09-24 22:42:21,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 22:42:21,007 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 676 transitions. [2020-09-24 22:42:21,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-24 22:42:21,011 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:42:21,011 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:42:21,012 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:42:21,012 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:42:21,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:42:21,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1225477396, now seen corresponding path program 1 times [2020-09-24 22:42:21,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:42:21,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [861432347] [2020-09-24 22:42:21,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:42:21,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:21,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:21,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:21,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 22:42:21,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:21,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 391 [2020-09-24 22:42:21,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:21,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:42:21,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-09-24 22:42:21,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 22:42:21,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:21,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:42:21,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:21,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:21,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:21,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:42:21,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:21,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:42:21,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:21,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:21,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:21,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:21,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:21,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 22:42:21,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:21,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:21,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:21,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 22:42:21,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:21,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 22:42:21,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:21,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:21,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:21,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:21,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:21,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-24 22:42:21,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:21,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:21,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:21,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 22:42:21,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:21,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:42:21,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:21,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:21,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:21,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:21,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:21,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:42:21,667 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [861432347] [2020-09-24 22:42:21,667 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:42:21,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 22:42:21,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474624964] [2020-09-24 22:42:21,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 22:42:21,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:42:21,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 22:42:21,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-24 22:42:21,671 INFO L87 Difference]: Start difference. First operand 607 states and 676 transitions. Second operand 6 states. [2020-09-24 22:42:23,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:42:23,112 INFO L93 Difference]: Finished difference Result 626 states and 696 transitions. [2020-09-24 22:42:23,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 22:42:23,112 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-24 22:42:23,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:42:23,117 INFO L225 Difference]: With dead ends: 626 [2020-09-24 22:42:23,117 INFO L226 Difference]: Without dead ends: 322 [2020-09-24 22:42:23,118 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 22:42:23,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-09-24 22:42:23,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 307. [2020-09-24 22:42:23,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2020-09-24 22:42:23,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 324 transitions. [2020-09-24 22:42:23,142 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 324 transitions. Word has length 162 [2020-09-24 22:42:23,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:42:23,142 INFO L479 AbstractCegarLoop]: Abstraction has 307 states and 324 transitions. [2020-09-24 22:42:23,142 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 22:42:23,142 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 324 transitions. [2020-09-24 22:42:23,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-09-24 22:42:23,145 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:42:23,145 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:42:23,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:42:23,145 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:42:23,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:42:23,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1820316512, now seen corresponding path program 1 times [2020-09-24 22:42:23,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:42:23,146 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1217867377] [2020-09-24 22:42:23,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:42:23,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:23,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:23,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:24,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:24,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-24 22:42:24,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:42:24,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 878 [2020-09-24 22:42:24,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:24,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:42:24,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 190 [2020-09-24 22:42:24,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 22:42:24,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:24,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:42:24,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:24,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:24,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:24,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:42:24,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:24,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:42:24,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:24,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:24,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:24,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:24,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:24,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 22:42:24,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:24,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:24,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:24,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 22:42:24,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:24,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 22:42:24,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:24,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:24,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:24,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:24,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:24,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-24 22:42:24,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:24,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:24,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:24,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 22:42:24,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:24,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:42:24,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:24,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:24,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:24,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:24,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:24,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 22:42:24,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:24,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:24,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:24,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:42:24,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:24,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 22:42:24,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:24,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:42:24,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:24,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 22:42:24,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:24,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:42:24,341 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1217867377] [2020-09-24 22:42:24,341 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:42:24,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 22:42:24,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460178969] [2020-09-24 22:42:24,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 22:42:24,343 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:42:24,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 22:42:24,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:42:24,343 INFO L87 Difference]: Start difference. First operand 307 states and 324 transitions. Second operand 10 states. [2020-09-24 22:42:25,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:42:25,304 INFO L93 Difference]: Finished difference Result 412 states and 444 transitions. [2020-09-24 22:42:25,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 22:42:25,304 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 197 [2020-09-24 22:42:25,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:42:25,307 INFO L225 Difference]: With dead ends: 412 [2020-09-24 22:42:25,307 INFO L226 Difference]: Without dead ends: 365 [2020-09-24 22:42:25,308 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2020-09-24 22:42:25,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2020-09-24 22:42:25,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 328. [2020-09-24 22:42:25,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2020-09-24 22:42:25,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 350 transitions. [2020-09-24 22:42:25,323 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 350 transitions. Word has length 197 [2020-09-24 22:42:25,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:42:25,323 INFO L479 AbstractCegarLoop]: Abstraction has 328 states and 350 transitions. [2020-09-24 22:42:25,324 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 22:42:25,324 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 350 transitions. [2020-09-24 22:42:25,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-09-24 22:42:25,326 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:42:25,326 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:42:25,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 22:42:25,327 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:42:25,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:42:25,327 INFO L82 PathProgramCache]: Analyzing trace with hash 2087840556, now seen corresponding path program 1 times [2020-09-24 22:42:25,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:42:25,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2119725019] [2020-09-24 22:42:25,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:42:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:25,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:25,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:25,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:26,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:29,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:29,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-09-24 22:42:29,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:42:29,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3830 [2020-09-24 22:42:29,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:29,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:42:29,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 210 [2020-09-24 22:42:29,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 22:42:29,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:29,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:42:29,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:29,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:29,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:29,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:42:29,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:29,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:42:29,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:29,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:29,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:29,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:29,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:29,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 22:42:29,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:29,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:29,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:29,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 22:42:29,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:29,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 22:42:29,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:29,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:29,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:29,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:29,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:42:29,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-24 22:42:29,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:29,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:29,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:29,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 22:42:29,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:29,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:42:29,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:29,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:29,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:29,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:29,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:42:29,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 22:42:29,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:29,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:29,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:29,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:42:29,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:29,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:42:29,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:29,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:29,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:29,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:29,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:42:29,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:42:29,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2119725019] [2020-09-24 22:42:29,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:42:29,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 22:42:29,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952897239] [2020-09-24 22:42:29,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 22:42:29,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:42:29,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 22:42:29,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-24 22:42:29,514 INFO L87 Difference]: Start difference. First operand 328 states and 350 transitions. Second operand 7 states. [2020-09-24 22:42:30,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:42:30,317 INFO L93 Difference]: Finished difference Result 368 states and 393 transitions. [2020-09-24 22:42:30,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 22:42:30,318 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 198 [2020-09-24 22:42:30,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:42:30,321 INFO L225 Difference]: With dead ends: 368 [2020-09-24 22:42:30,321 INFO L226 Difference]: Without dead ends: 363 [2020-09-24 22:42:30,322 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:42:30,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2020-09-24 22:42:30,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 330. [2020-09-24 22:42:30,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2020-09-24 22:42:30,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 351 transitions. [2020-09-24 22:42:30,364 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 351 transitions. Word has length 198 [2020-09-24 22:42:30,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:42:30,365 INFO L479 AbstractCegarLoop]: Abstraction has 330 states and 351 transitions. [2020-09-24 22:42:30,365 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 22:42:30,365 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 351 transitions. [2020-09-24 22:42:30,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-09-24 22:42:30,368 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:42:30,368 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:42:30,368 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 22:42:30,369 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:42:30,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:42:30,369 INFO L82 PathProgramCache]: Analyzing trace with hash -1129011458, now seen corresponding path program 1 times [2020-09-24 22:42:30,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:42:30,370 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [857240139] [2020-09-24 22:42:30,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:42:30,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:30,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:30,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:31,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:31,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-09-24 22:42:31,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:42:31,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 635 [2020-09-24 22:42:31,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:31,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:42:31,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-24 22:42:31,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 22:42:31,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:31,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:42:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:31,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:31,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:31,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:42:31,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:31,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:42:31,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:31,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:31,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:31,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:31,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:31,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 22:42:31,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:31,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:31,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:31,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 22:42:31,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:31,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 22:42:31,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:31,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:31,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:31,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:31,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:31,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-24 22:42:31,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:31,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:31,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:31,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 22:42:31,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:31,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:42:31,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:31,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:31,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:31,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:31,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:31,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 22:42:31,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:31,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:31,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:31,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:42:31,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:31,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 22:42:31,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:31,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:42:31,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 22:42:31,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 22:42:31,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:31,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:42:31,320 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [857240139] [2020-09-24 22:42:31,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:42:31,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:42:31,322 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916074515] [2020-09-24 22:42:31,323 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:42:31,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:42:31,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:42:31,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:42:31,323 INFO L87 Difference]: Start difference. First operand 330 states and 351 transitions. Second operand 8 states. [2020-09-24 22:42:32,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:42:32,190 INFO L93 Difference]: Finished difference Result 408 states and 438 transitions. [2020-09-24 22:42:32,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 22:42:32,192 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 198 [2020-09-24 22:42:32,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:42:32,194 INFO L225 Difference]: With dead ends: 408 [2020-09-24 22:42:32,194 INFO L226 Difference]: Without dead ends: 330 [2020-09-24 22:42:32,195 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-24 22:42:32,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-09-24 22:42:32,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2020-09-24 22:42:32,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2020-09-24 22:42:32,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 350 transitions. [2020-09-24 22:42:32,219 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 350 transitions. Word has length 198 [2020-09-24 22:42:32,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:42:32,219 INFO L479 AbstractCegarLoop]: Abstraction has 330 states and 350 transitions. [2020-09-24 22:42:32,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:42:32,219 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 350 transitions. [2020-09-24 22:42:32,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-24 22:42:32,222 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:42:32,223 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:42:32,223 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 22:42:32,223 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:42:32,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:42:32,224 INFO L82 PathProgramCache]: Analyzing trace with hash 667967814, now seen corresponding path program 1 times [2020-09-24 22:42:32,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:42:32,224 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2041009103] [2020-09-24 22:42:32,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:42:32,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:32,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:32,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:32,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-24 22:42:32,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:32,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 360 [2020-09-24 22:42:32,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:32,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:42:32,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 220 [2020-09-24 22:42:32,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 22:42:32,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:42:32,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:42:32,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:32,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:32,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:32,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:42:32,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:32,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:42:32,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:32,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:32,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:32,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:32,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:42:32,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 22:42:32,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:32,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:32,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:32,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 22:42:32,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:32,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 22:42:32,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:32,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:32,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:32,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:32,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:42:32,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-24 22:42:32,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:32,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:32,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:32,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 22:42:32,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:32,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:42:32,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:32,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:32,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:32,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:32,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:42:32,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-09-24 22:42:32,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:32,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:32,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:32,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:42:32,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:32,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 22:42:32,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:32,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:32,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:32,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:32,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:32,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 22:42:32,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:32,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:32,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:32,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 22:42:32,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:32,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:42:32,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:32,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:32,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:32,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:32,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:42:32,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-09-24 22:42:32,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:32,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:32,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:32,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:42:32,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:32,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:42:32,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:32,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:42:32,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:32,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 22:42:32,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:42:33,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:42:33,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2041009103] [2020-09-24 22:42:33,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:42:33,027 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 22:42:33,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160202987] [2020-09-24 22:42:33,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 22:42:33,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:42:33,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 22:42:33,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-24 22:42:33,030 INFO L87 Difference]: Start difference. First operand 330 states and 350 transitions. Second operand 8 states. [2020-09-24 22:42:33,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:42:33,624 INFO L93 Difference]: Finished difference Result 391 states and 418 transitions. [2020-09-24 22:42:33,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 22:42:33,626 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 213 [2020-09-24 22:42:33,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:42:33,630 INFO L225 Difference]: With dead ends: 391 [2020-09-24 22:42:33,630 INFO L226 Difference]: Without dead ends: 325 [2020-09-24 22:42:33,631 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:42:33,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-09-24 22:42:33,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 323. [2020-09-24 22:42:33,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2020-09-24 22:42:33,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 339 transitions. [2020-09-24 22:42:33,658 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 339 transitions. Word has length 213 [2020-09-24 22:42:33,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:42:33,658 INFO L479 AbstractCegarLoop]: Abstraction has 323 states and 339 transitions. [2020-09-24 22:42:33,659 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 22:42:33,659 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 339 transitions. [2020-09-24 22:42:33,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-09-24 22:42:33,661 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:42:33,662 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:42:33,662 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 22:42:33,662 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:42:33,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:42:33,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1227578766, now seen corresponding path program 1 times [2020-09-24 22:42:33,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:42:33,663 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [806873372] [2020-09-24 22:42:33,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:42:33,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:33,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:33,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:35,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:35,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-09-24 22:42:35,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:42:35,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1931 [2020-09-24 22:42:35,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:35,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:42:35,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 208 [2020-09-24 22:42:35,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:42:35,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:35,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:42:35,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:35,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:35,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:35,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:42:35,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:35,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:42:35,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:35,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:35,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:35,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:35,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:42:35,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 22:42:35,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:35,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:35,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:35,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 22:42:35,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:35,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 22:42:35,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:35,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:35,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:35,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:35,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:35,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-24 22:42:35,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:35,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:35,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:35,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 22:42:35,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:35,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:42:35,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:35,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:35,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:35,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:35,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:35,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 22:42:35,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:35,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:35,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:35,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 22:42:35,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:35,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-24 22:42:35,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:35,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:42:35,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-24 22:42:35,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:42:35,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:35,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 22:42:35,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:35,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:36,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:36,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:42:36,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:36,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 22:42:36,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:36,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:42:36,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:36,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 22:42:36,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:36,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 22:42:36,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:36,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:36,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:36,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 22:42:36,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:36,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:42:36,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:36,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:36,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:36,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:36,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:36,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:42:36,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [806873372] [2020-09-24 22:42:36,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:42:36,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 22:42:36,143 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642660273] [2020-09-24 22:42:36,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 22:42:36,144 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:42:36,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 22:42:36,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-24 22:42:36,145 INFO L87 Difference]: Start difference. First operand 323 states and 339 transitions. Second operand 11 states. [2020-09-24 22:42:36,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:42:36,874 INFO L93 Difference]: Finished difference Result 386 states and 409 transitions. [2020-09-24 22:42:36,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 22:42:36,874 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 225 [2020-09-24 22:42:36,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:42:36,877 INFO L225 Difference]: With dead ends: 386 [2020-09-24 22:42:36,877 INFO L226 Difference]: Without dead ends: 308 [2020-09-24 22:42:36,879 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-09-24 22:42:36,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2020-09-24 22:42:36,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2020-09-24 22:42:36,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2020-09-24 22:42:36,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 321 transitions. [2020-09-24 22:42:36,900 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 321 transitions. Word has length 225 [2020-09-24 22:42:36,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:42:36,901 INFO L479 AbstractCegarLoop]: Abstraction has 308 states and 321 transitions. [2020-09-24 22:42:36,901 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 22:42:36,901 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 321 transitions. [2020-09-24 22:42:36,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-24 22:42:36,907 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:42:36,908 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:42:36,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 22:42:36,909 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:42:36,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:42:36,910 INFO L82 PathProgramCache]: Analyzing trace with hash -910985808, now seen corresponding path program 1 times [2020-09-24 22:42:36,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:42:36,911 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [853486552] [2020-09-24 22:42:36,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:42:36,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:37,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:37,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:38,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:38,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-09-24 22:42:38,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:42:38,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1193 [2020-09-24 22:42:38,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:38,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:42:38,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-09-24 22:42:38,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-09-24 22:42:38,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:38,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:42:38,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:38,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:38,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:38,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:42:38,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:38,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:42:38,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:38,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:38,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:38,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:38,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:38,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 22:42:38,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:38,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:38,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:38,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 22:42:38,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:38,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 22:42:38,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:38,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:38,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:38,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:38,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:38,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-24 22:42:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:38,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:38,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:38,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 22:42:38,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:38,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:42:38,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:38,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:42:38,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:38,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 22:42:38,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:38,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 22:42:38,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:38,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:38,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:38,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 22:42:38,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:38,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-24 22:42:38,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:38,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:42:38,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:38,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-24 22:42:38,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:38,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 22:42:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:38,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:38,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:38,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:42:38,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:38,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 22:42:38,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:38,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:38,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:38,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:38,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:38,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 22:42:38,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:38,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:38,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:38,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 22:42:38,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:38,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:42:38,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:38,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:38,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:38,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:38,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:38,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-24 22:42:38,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:38,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:38,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:38,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:42:38,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:38,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:42:38,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:38,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:38,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:38,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:38,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:38,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:42:38,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [853486552] [2020-09-24 22:42:38,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:42:38,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:42:38,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31199105] [2020-09-24 22:42:38,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:42:38,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:42:38,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:42:38,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:42:38,542 INFO L87 Difference]: Start difference. First operand 308 states and 321 transitions. Second operand 9 states. [2020-09-24 22:42:39,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:42:39,361 INFO L93 Difference]: Finished difference Result 533 states and 557 transitions. [2020-09-24 22:42:39,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 22:42:39,362 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 230 [2020-09-24 22:42:39,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:42:39,365 INFO L225 Difference]: With dead ends: 533 [2020-09-24 22:42:39,365 INFO L226 Difference]: Without dead ends: 523 [2020-09-24 22:42:39,365 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=129, Unknown=0, NotChecked=0, Total=210 [2020-09-24 22:42:39,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2020-09-24 22:42:39,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 500. [2020-09-24 22:42:39,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 500 states. [2020-09-24 22:42:39,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 525 transitions. [2020-09-24 22:42:39,394 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 525 transitions. Word has length 230 [2020-09-24 22:42:39,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:42:39,394 INFO L479 AbstractCegarLoop]: Abstraction has 500 states and 525 transitions. [2020-09-24 22:42:39,394 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:42:39,394 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 525 transitions. [2020-09-24 22:42:39,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-09-24 22:42:39,398 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:42:39,398 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:42:39,398 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 22:42:39,399 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:42:39,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:42:39,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1829455744, now seen corresponding path program 1 times [2020-09-24 22:42:39,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:42:39,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [595066416] [2020-09-24 22:42:39,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:42:39,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:39,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:39,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:40,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:40,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:40,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:44,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:44,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 256 [2020-09-24 22:42:44,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 22:42:44,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 22:42:44,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:44,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:42:44,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 228 [2020-09-24 22:42:44,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 22:42:44,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:44,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:42:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:44,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:44,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:44,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:42:44,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:44,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:42:44,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:44,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:44,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:44,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:44,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:44,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 22:42:44,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:44,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:44,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:44,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 22:42:44,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:44,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 22:42:44,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:44,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:44,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:44,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:44,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:42:44,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-24 22:42:44,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:44,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:44,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:44,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 22:42:44,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:44,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:42:44,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:44,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:44,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:44,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:44,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:42:44,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 22:42:44,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:44,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:44,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:44,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 22:42:44,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:44,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-24 22:42:44,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:44,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:42:44,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:44,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 22:42:44,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:42:44,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 22:42:44,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:44,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:44,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:44,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:42:44,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:44,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 22:42:44,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:44,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:44,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:44,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:44,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:42:44,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 22:42:44,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:44,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:44,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:44,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 22:42:44,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:44,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:42:44,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:44,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:44,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:44,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:44,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:42:44,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-24 22:42:44,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:44,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:44,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:44,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:42:44,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:44,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:42:44,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:44,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:44,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:44,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:44,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:42:44,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:42:44,964 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [595066416] [2020-09-24 22:42:44,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:42:44,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-24 22:42:44,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114550984] [2020-09-24 22:42:44,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 22:42:44,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:42:44,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 22:42:44,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-09-24 22:42:44,967 INFO L87 Difference]: Start difference. First operand 500 states and 525 transitions. Second operand 13 states. [2020-09-24 22:42:45,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:42:45,786 INFO L93 Difference]: Finished difference Result 652 states and 696 transitions. [2020-09-24 22:42:45,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 22:42:45,787 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 231 [2020-09-24 22:42:45,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:42:45,790 INFO L225 Difference]: With dead ends: 652 [2020-09-24 22:42:45,790 INFO L226 Difference]: Without dead ends: 527 [2020-09-24 22:42:45,793 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2020-09-24 22:42:45,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2020-09-24 22:42:45,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 512. [2020-09-24 22:42:45,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 512 states. [2020-09-24 22:42:45,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 531 transitions. [2020-09-24 22:42:45,820 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 531 transitions. Word has length 231 [2020-09-24 22:42:45,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:42:45,820 INFO L479 AbstractCegarLoop]: Abstraction has 512 states and 531 transitions. [2020-09-24 22:42:45,821 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 22:42:45,821 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 531 transitions. [2020-09-24 22:42:45,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-09-24 22:42:45,824 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:42:45,824 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:42:45,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 22:42:45,825 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:42:45,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:42:45,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1776023437, now seen corresponding path program 1 times [2020-09-24 22:42:45,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:42:45,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1712182216] [2020-09-24 22:42:45,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:42:45,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:45,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:46,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:46,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-24 22:42:46,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:46,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 400 [2020-09-24 22:42:46,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:46,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:42:46,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-24 22:42:46,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-09-24 22:42:46,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:46,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:42:46,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:46,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:46,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:46,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:42:46,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:46,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:42:46,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:46,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:46,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:46,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:46,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:46,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 22:42:46,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:46,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:46,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:46,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 22:42:46,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:46,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 22:42:46,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:46,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:42:46,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:46,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:42:46,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:46,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 22:42:46,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:46,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:46,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:46,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 22:42:46,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:46,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 22:42:46,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:46,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:42:46,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:46,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 22:42:46,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:46,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-24 22:42:46,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:46,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:46,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:46,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 22:42:46,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:46,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-24 22:42:46,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:46,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 22:42:46,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-24 22:42:46,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 22:42:46,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:46,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 22:42:46,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:46,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:46,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:46,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:42:46,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:46,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 22:42:46,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:46,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:46,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:46,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:46,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:46,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 22:42:46,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:46,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:46,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:46,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 22:42:46,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:46,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 22:42:46,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:46,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:46,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:46,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:46,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:46,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-24 22:42:46,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:46,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:46,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:46,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:42:46,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:46,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:42:46,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:46,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:42:46,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:46,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 22:42:46,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:46,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:42:46,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1712182216] [2020-09-24 22:42:46,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:42:46,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-24 22:42:46,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348966714] [2020-09-24 22:42:46,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 22:42:46,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:42:46,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 22:42:46,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-09-24 22:42:46,776 INFO L87 Difference]: Start difference. First operand 512 states and 531 transitions. Second operand 13 states. [2020-09-24 22:42:47,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:42:47,556 INFO L93 Difference]: Finished difference Result 592 states and 621 transitions. [2020-09-24 22:42:47,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 22:42:47,557 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 232 [2020-09-24 22:42:47,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:42:47,559 INFO L225 Difference]: With dead ends: 592 [2020-09-24 22:42:47,559 INFO L226 Difference]: Without dead ends: 458 [2020-09-24 22:42:47,561 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2020-09-24 22:42:47,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2020-09-24 22:42:47,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 458. [2020-09-24 22:42:47,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 458 states. [2020-09-24 22:42:47,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 471 transitions. [2020-09-24 22:42:47,584 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 471 transitions. Word has length 232 [2020-09-24 22:42:47,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:42:47,585 INFO L479 AbstractCegarLoop]: Abstraction has 458 states and 471 transitions. [2020-09-24 22:42:47,585 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 22:42:47,585 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 471 transitions. [2020-09-24 22:42:47,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-09-24 22:42:47,589 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:42:47,589 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:42:47,590 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 22:42:47,590 INFO L427 AbstractCegarLoop]: === Iteration 13 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:42:47,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:42:47,590 INFO L82 PathProgramCache]: Analyzing trace with hash -2094536828, now seen corresponding path program 1 times [2020-09-24 22:42:47,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:42:47,591 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [228975948] [2020-09-24 22:42:47,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:42:47,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:47,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:48,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:48,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:48,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:48,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:48,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-09-24 22:42:48,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 22:42:48,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1181 [2020-09-24 22:42:48,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:48,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:42:48,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 236 [2020-09-24 22:42:48,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 22:42:48,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:42:48,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:42:48,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:48,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:48,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:48,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:42:48,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:48,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:42:48,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:48,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:48,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:48,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:48,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:48,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 22:42:48,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:48,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:48,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:48,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 22:42:48,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:48,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 22:42:48,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:48,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:48,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:48,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:48,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:49,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-24 22:42:49,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:49,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:49,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:49,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 22:42:49,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:49,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:42:49,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:49,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:49,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:49,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:49,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:49,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 22:42:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:49,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:49,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:49,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:49,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 22:42:49,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:42:49,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-24 22:42:49,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:49,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:42:49,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:49,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-24 22:42:49,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:49,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 22:42:49,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:49,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:49,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:49,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:42:49,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:49,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:42:49,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:49,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:49,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:49,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:49,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:49,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 22:42:49,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:49,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:49,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:49,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 22:42:49,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:49,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:42:49,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:49,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:49,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:49,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:49,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:49,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-24 22:42:49,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:49,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:49,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:49,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:42:49,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:49,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:42:49,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:49,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:49,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:49,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:49,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:49,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:42:49,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [228975948] [2020-09-24 22:42:49,305 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:42:49,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 22:42:49,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934911905] [2020-09-24 22:42:49,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 22:42:49,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:42:49,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 22:42:49,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-09-24 22:42:49,308 INFO L87 Difference]: Start difference. First operand 458 states and 471 transitions. Second operand 12 states. [2020-09-24 22:42:49,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:42:49,967 INFO L93 Difference]: Finished difference Result 468 states and 480 transitions. [2020-09-24 22:42:49,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 22:42:49,968 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 236 [2020-09-24 22:42:49,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:42:49,971 INFO L225 Difference]: With dead ends: 468 [2020-09-24 22:42:49,971 INFO L226 Difference]: Without dead ends: 458 [2020-09-24 22:42:49,972 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2020-09-24 22:42:49,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2020-09-24 22:42:49,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 458. [2020-09-24 22:42:49,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 458 states. [2020-09-24 22:42:49,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 469 transitions. [2020-09-24 22:42:49,991 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 469 transitions. Word has length 236 [2020-09-24 22:42:49,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:42:49,992 INFO L479 AbstractCegarLoop]: Abstraction has 458 states and 469 transitions. [2020-09-24 22:42:49,992 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 22:42:49,992 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 469 transitions. [2020-09-24 22:42:49,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-09-24 22:42:49,995 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:42:49,996 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:42:49,996 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 22:42:49,996 INFO L427 AbstractCegarLoop]: === Iteration 14 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:42:49,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:42:49,996 INFO L82 PathProgramCache]: Analyzing trace with hash -1531034922, now seen corresponding path program 1 times [2020-09-24 22:42:49,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:42:49,997 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1816424395] [2020-09-24 22:42:49,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:42:50,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:50,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:50,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:50,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-09-24 22:42:50,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:50,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 413 [2020-09-24 22:42:50,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:50,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:42:50,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 202 [2020-09-24 22:42:50,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-24 22:42:50,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:50,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:42:50,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:50,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:50,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:50,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:42:50,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:50,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:42:50,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:50,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:50,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:50,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:50,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:50,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 22:42:50,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:50,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:50,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:50,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 22:42:50,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:50,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 22:42:50,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:50,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:50,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:50,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:50,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:50,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-24 22:42:50,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:50,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:50,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:50,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 22:42:50,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:50,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:42:50,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:50,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:50,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:50,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:50,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:50,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 22:42:50,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:50,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:50,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:50,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 22:42:50,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:50,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 22:42:50,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:50,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:42:50,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:50,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 22:42:50,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:50,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 22:42:50,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:50,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:50,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:50,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:42:50,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:50,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 22:42:50,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:50,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:42:50,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:50,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 22:42:50,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:50,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 22:42:50,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:50,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:50,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:50,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 22:42:50,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:50,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:42:50,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:50,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:42:50,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:50,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:42:50,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:50,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-24 22:42:50,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:50,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:50,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:50,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:42:50,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:50,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:42:50,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:50,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:42:50,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:50,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:42:50,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:50,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:42:50,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1816424395] [2020-09-24 22:42:50,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:42:50,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:42:50,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258490248] [2020-09-24 22:42:50,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:42:50,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:42:50,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:42:50,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:42:50,812 INFO L87 Difference]: Start difference. First operand 458 states and 469 transitions. Second operand 9 states. [2020-09-24 22:42:51,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:42:51,509 INFO L93 Difference]: Finished difference Result 497 states and 510 transitions. [2020-09-24 22:42:51,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 22:42:51,510 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 238 [2020-09-24 22:42:51,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:42:51,512 INFO L225 Difference]: With dead ends: 497 [2020-09-24 22:42:51,512 INFO L226 Difference]: Without dead ends: 426 [2020-09-24 22:42:51,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-09-24 22:42:51,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2020-09-24 22:42:51,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 426. [2020-09-24 22:42:51,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2020-09-24 22:42:51,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 431 transitions. [2020-09-24 22:42:51,532 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 431 transitions. Word has length 238 [2020-09-24 22:42:51,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:42:51,532 INFO L479 AbstractCegarLoop]: Abstraction has 426 states and 431 transitions. [2020-09-24 22:42:51,532 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:42:51,533 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 431 transitions. [2020-09-24 22:42:51,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-09-24 22:42:51,534 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:42:51,534 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:42:51,535 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 22:42:51,535 INFO L427 AbstractCegarLoop]: === Iteration 15 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:42:51,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:42:51,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1548704649, now seen corresponding path program 1 times [2020-09-24 22:42:51,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:42:51,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1541314919] [2020-09-24 22:42:51,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:42:51,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:51,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:51,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:52,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:52,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 264 [2020-09-24 22:42:52,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:42:52,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 990 [2020-09-24 22:42:52,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:52,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:42:52,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 238 [2020-09-24 22:42:52,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 22:42:52,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:52,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:42:52,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:52,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:52,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:52,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:42:52,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:52,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:42:52,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:52,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:52,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:52,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:52,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:52,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 22:42:52,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:52,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:52,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:52,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 22:42:52,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:52,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 22:42:52,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:52,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:52,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:52,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:52,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:52,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 22:42:52,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:52,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:52,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:52,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 22:42:52,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:52,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:42:52,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:52,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:52,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:52,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:52,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:52,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-24 22:42:52,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:52,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:52,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:52,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:52,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 22:42:52,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:42:52,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-24 22:42:52,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:52,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:42:52,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:52,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-24 22:42:52,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:52,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 22:42:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:52,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:52,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:52,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:42:52,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:52,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:42:52,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:52,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:52,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:52,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:52,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:52,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 22:42:52,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:52,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:52,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:52,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 22:42:52,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:52,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:42:52,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:52,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:52,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:52,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:52,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:52,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-24 22:42:52,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:52,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:52,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:52,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:42:52,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:52,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:42:52,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:52,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:52,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:52,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:52,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:53,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:42:53,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1541314919] [2020-09-24 22:42:53,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:42:53,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-24 22:42:53,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464433177] [2020-09-24 22:42:53,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 22:42:53,014 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:42:53,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 22:42:53,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-09-24 22:42:53,015 INFO L87 Difference]: Start difference. First operand 426 states and 431 transitions. Second operand 13 states. [2020-09-24 22:42:53,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:42:53,763 INFO L93 Difference]: Finished difference Result 443 states and 448 transitions. [2020-09-24 22:42:53,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 22:42:53,763 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 239 [2020-09-24 22:42:53,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:42:53,767 INFO L225 Difference]: With dead ends: 443 [2020-09-24 22:42:53,767 INFO L226 Difference]: Without dead ends: 426 [2020-09-24 22:42:53,768 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2020-09-24 22:42:53,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2020-09-24 22:42:53,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 426. [2020-09-24 22:42:53,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2020-09-24 22:42:53,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 429 transitions. [2020-09-24 22:42:53,786 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 429 transitions. Word has length 239 [2020-09-24 22:42:53,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:42:53,786 INFO L479 AbstractCegarLoop]: Abstraction has 426 states and 429 transitions. [2020-09-24 22:42:53,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 22:42:53,787 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 429 transitions. [2020-09-24 22:42:53,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-09-24 22:42:53,789 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:42:53,789 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:42:53,790 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-24 22:42:53,790 INFO L427 AbstractCegarLoop]: === Iteration 16 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:42:53,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:42:53,790 INFO L82 PathProgramCache]: Analyzing trace with hash 1801520839, now seen corresponding path program 1 times [2020-09-24 22:42:53,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:42:53,791 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1339853739] [2020-09-24 22:42:53,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:42:53,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:53,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:54,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:54,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:54,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 285 [2020-09-24 22:42:54,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:42:54,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 684 [2020-09-24 22:42:54,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:54,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:42:54,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 239 [2020-09-24 22:42:54,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 22:42:54,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:54,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:42:54,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:54,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:54,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:54,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 22:42:54,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:54,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:42:54,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:54,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:54,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:54,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:54,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:54,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-24 22:42:54,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:54,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:54,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:54,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 22:42:54,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:54,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 22:42:54,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:54,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:54,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:54,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:54,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:54,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 22:42:54,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:54,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:54,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:54,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 22:42:54,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:54,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:42:54,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:54,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:54,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:54,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:54,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:54,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-24 22:42:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:54,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:54,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:54,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 22:42:54,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:54,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 22:42:54,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:54,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:42:54,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:54,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-24 22:42:54,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:54,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 22:42:54,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:54,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:54,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:54,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 22:42:54,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:54,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:42:54,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:54,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:54,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:54,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:54,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:54,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 22:42:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:54,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:54,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:54,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 22:42:54,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:54,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:42:54,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:54,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:54,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:54,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:54,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:54,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-24 22:42:54,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:54,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:54,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:54,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:42:54,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:42:54,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:42:54,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:54,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:42:54,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:42:54,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:42:54,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:54,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-09-24 22:42:54,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:42:54,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:54,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:42:54,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:42:54,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 22:42:54,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:42:54,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 22:42:54,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:42:54,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 22:42:54,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 22:42:54,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 22:42:54,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:42:54,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:42:54,899 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1339853739] [2020-09-24 22:42:54,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:42:54,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 22:42:54,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867328539] [2020-09-24 22:42:54,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 22:42:54,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:42:54,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 22:42:54,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-24 22:42:54,901 INFO L87 Difference]: Start difference. First operand 426 states and 429 transitions. Second operand 11 states. [2020-09-24 22:42:55,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:42:55,350 INFO L93 Difference]: Finished difference Result 426 states and 429 transitions. [2020-09-24 22:42:55,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 22:42:55,351 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 258 [2020-09-24 22:42:55,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:42:55,352 INFO L225 Difference]: With dead ends: 426 [2020-09-24 22:42:55,352 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 22:42:55,353 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2020-09-24 22:42:55,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 22:42:55,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 22:42:55,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 22:42:55,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 22:42:55,354 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 258 [2020-09-24 22:42:55,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:42:55,354 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 22:42:55,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 22:42:55,355 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 22:42:55,355 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 22:42:55,355 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-24 22:42:55,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.