/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/forester-heap/sll-rb-sentinel-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:59:06,290 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:59:06,295 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:59:06,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:59:06,337 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:59:06,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:59:06,348 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:59:06,351 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:59:06,354 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:59:06,356 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:59:06,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:59:06,358 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:59:06,358 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:59:06,361 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:59:06,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:59:06,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:59:06,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:59:06,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:59:06,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:59:06,378 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:59:06,380 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:59:06,381 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:59:06,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:59:06,382 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:59:06,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:59:06,395 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:59:06,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:59:06,397 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:59:06,398 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:59:06,400 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:59:06,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:59:06,401 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:59:06,402 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:59:06,403 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:59:06,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:59:06,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:59:06,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:59:06,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:59:06,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:59:06,409 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:59:06,409 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:59:06,410 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 [2020-09-25 08:59:06,438 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:59:06,438 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:59:06,439 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:59:06,440 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:59:06,440 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:59:06,440 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:59:06,440 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:59:06,441 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:59:06,441 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:59:06,441 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:59:06,441 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:59:06,441 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:59:06,442 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:59:06,442 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:59:06,442 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:59:06,442 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:59:06,442 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:59:06,443 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:59:06,443 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:59:06,443 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:59:06,443 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:59:06,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:59:06,444 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:59:06,444 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:59:06,444 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:59:06,444 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:59:06,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:59:06,445 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:59:06,445 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:59:06,445 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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-09-25 08:59:06,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:59:06,915 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:59:06,919 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:59:06,920 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:59:06,921 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:59:06,922 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-rb-sentinel-2.i [2020-09-25 08:59:07,013 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/622b24a7c/705876d144b2415ebeb984bbc3d409f2/FLAGb087e600a [2020-09-25 08:59:07,600 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:59:07,601 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/sll-rb-sentinel-2.i [2020-09-25 08:59:07,619 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/622b24a7c/705876d144b2415ebeb984bbc3d409f2/FLAGb087e600a [2020-09-25 08:59:07,887 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/622b24a7c/705876d144b2415ebeb984bbc3d409f2 [2020-09-25 08:59:07,900 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:59:07,906 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:59:07,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:59:07,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:59:07,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:59:07,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:59:07" (1/1) ... [2020-09-25 08:59:07,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@af20ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:59:07, skipping insertion in model container [2020-09-25 08:59:07,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:59:07" (1/1) ... [2020-09-25 08:59:07,928 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:59:07,992 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:59:08,481 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:59:08,498 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:59:08,544 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:59:08,611 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:59:08,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:59:08 WrapperNode [2020-09-25 08:59:08,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:59:08,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:59:08,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:59:08,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:59:08,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:59:08" (1/1) ... [2020-09-25 08:59:08,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:59:08" (1/1) ... [2020-09-25 08:59:08,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:59:08" (1/1) ... [2020-09-25 08:59:08,655 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:59:08" (1/1) ... [2020-09-25 08:59:08,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:59:08" (1/1) ... [2020-09-25 08:59:08,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:59:08" (1/1) ... [2020-09-25 08:59:08,683 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:59:08" (1/1) ... [2020-09-25 08:59:08,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:59:08,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:59:08,690 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:59:08,690 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:59:08,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:59:08" (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 [2020-09-25 08:59:08,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:59:08,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:59:08,765 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:59:08,765 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 08:59:08,765 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 08:59:08,766 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 08:59:08,766 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 08:59:08,766 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 08:59:08,766 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 08:59:08,766 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 08:59:08,767 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 08:59:08,767 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 08:59:08,767 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 08:59:08,767 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 08:59:08,767 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 08:59:08,768 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 08:59:08,768 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 08:59:08,768 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 08:59:08,768 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 08:59:08,768 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 08:59:08,769 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 08:59:08,769 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 08:59:08,769 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 08:59:08,769 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 08:59:08,769 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 08:59:08,769 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 08:59:08,770 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 08:59:08,770 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 08:59:08,770 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 08:59:08,770 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 08:59:08,770 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 08:59:08,771 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 08:59:08,771 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 08:59:08,771 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 08:59:08,771 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 08:59:08,771 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 08:59:08,771 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 08:59:08,771 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 08:59:08,772 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 08:59:08,772 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 08:59:08,772 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 08:59:08,772 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 08:59:08,772 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 08:59:08,773 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 08:59:08,773 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 08:59:08,773 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 08:59:08,773 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 08:59:08,773 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 08:59:08,773 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 08:59:08,773 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 08:59:08,774 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 08:59:08,774 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 08:59:08,774 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 08:59:08,774 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:59:08,774 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 08:59:08,774 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 08:59:08,775 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:59:08,775 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 08:59:08,775 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 08:59:08,775 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 08:59:08,775 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 08:59:08,775 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 08:59:08,776 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 08:59:08,776 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 08:59:08,776 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 08:59:08,776 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 08:59:08,776 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 08:59:08,776 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 08:59:08,777 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 08:59:08,777 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 08:59:08,777 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 08:59:08,777 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 08:59:08,777 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 08:59:08,777 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 08:59:08,778 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 08:59:08,778 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 08:59:08,778 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 08:59:08,778 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 08:59:08,778 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 08:59:08,778 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 08:59:08,779 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 08:59:08,779 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 08:59:08,779 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 08:59:08,779 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 08:59:08,779 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 08:59:08,779 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 08:59:08,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 08:59:08,780 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 08:59:08,780 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 08:59:08,780 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 08:59:08,780 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 08:59:08,780 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 08:59:08,780 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 08:59:08,780 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 08:59:08,780 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 08:59:08,781 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 08:59:08,781 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 08:59:08,781 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 08:59:08,781 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 08:59:08,781 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 08:59:08,781 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 08:59:08,781 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 08:59:08,781 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 08:59:08,781 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 08:59:08,782 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 08:59:08,782 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 08:59:08,782 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:59:08,782 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:59:08,782 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:59:08,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:59:08,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:59:08,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:59:08,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:59:08,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:59:08,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:59:08,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:59:08,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:59:09,428 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:59:09,429 INFO L295 CfgBuilder]: Removed 11 assume(true) statements. [2020-09-25 08:59:09,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:59:09 BoogieIcfgContainer [2020-09-25 08:59:09,434 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:59:09,436 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:59:09,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:59:09,440 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:59:09,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:59:07" (1/3) ... [2020-09-25 08:59:09,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb1c007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:59:09, skipping insertion in model container [2020-09-25 08:59:09,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:59:08" (2/3) ... [2020-09-25 08:59:09,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb1c007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:59:09, skipping insertion in model container [2020-09-25 08:59:09,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:59:09" (3/3) ... [2020-09-25 08:59:09,444 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-rb-sentinel-2.i [2020-09-25 08:59:09,455 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:59:09,465 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-09-25 08:59:09,488 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-25 08:59:09,517 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:59:09,517 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:59:09,518 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:59:09,518 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:59:09,518 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:59:09,518 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:59:09,518 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:59:09,518 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:59:09,543 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2020-09-25 08:59:09,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-25 08:59:09,552 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:59:09,553 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] [2020-09-25 08:59:09,554 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:59:09,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:59:09,562 INFO L82 PathProgramCache]: Analyzing trace with hash -159181327, now seen corresponding path program 1 times [2020-09-25 08:59:09,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:59:09,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [465742839] [2020-09-25 08:59:09,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:59:09,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:09,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:09,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:10,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:10,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 08:59:10,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:59:10,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 562 [2020-09-25 08:59:10,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:10,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:10,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:10,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 08:59:10,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:10,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 08:59:10,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:59:10,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:10,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:10,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:10,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:59:10,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:10,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 08:59:10,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:10,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:10,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:10,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:10,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:10,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:10,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:59:10,403 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [465742839] [2020-09-25 08:59:10,405 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:59:10,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:59:10,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472828931] [2020-09-25 08:59:10,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:59:10,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:59:10,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:59:10,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:59:10,435 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 3 states. [2020-09-25 08:59:10,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:59:10,652 INFO L93 Difference]: Finished difference Result 157 states and 194 transitions. [2020-09-25 08:59:10,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:59:10,654 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-09-25 08:59:10,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:59:10,667 INFO L225 Difference]: With dead ends: 157 [2020-09-25 08:59:10,667 INFO L226 Difference]: Without dead ends: 74 [2020-09-25 08:59:10,672 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:59:10,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-09-25 08:59:10,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-09-25 08:59:10,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-09-25 08:59:10,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 77 transitions. [2020-09-25 08:59:10,726 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 77 transitions. Word has length 21 [2020-09-25 08:59:10,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:59:10,726 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 77 transitions. [2020-09-25 08:59:10,726 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:59:10,727 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 77 transitions. [2020-09-25 08:59:10,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-25 08:59:10,728 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:59:10,728 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] [2020-09-25 08:59:10,728 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:59:10,729 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:59:10,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:59:10,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1476818129, now seen corresponding path program 1 times [2020-09-25 08:59:10,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:59:10,730 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [330357227] [2020-09-25 08:59:10,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:59:10,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:10,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:10,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:10,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 08:59:10,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:10,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-09-25 08:59:10,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:10,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:10,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:59:10,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 08:59:10,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 08:59:10,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:11,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:59:11,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:11,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:11,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:11,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:59:11,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:11,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 08:59:11,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:11,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:11,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:11,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:11,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:11,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:11,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:59:11,076 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [330357227] [2020-09-25 08:59:11,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:59:11,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 08:59:11,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433537314] [2020-09-25 08:59:11,079 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 08:59:11,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:59:11,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 08:59:11,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:59:11,080 INFO L87 Difference]: Start difference. First operand 74 states and 77 transitions. Second operand 8 states. [2020-09-25 08:59:11,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:59:11,336 INFO L93 Difference]: Finished difference Result 92 states and 97 transitions. [2020-09-25 08:59:11,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 08:59:11,337 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-09-25 08:59:11,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:59:11,339 INFO L225 Difference]: With dead ends: 92 [2020-09-25 08:59:11,339 INFO L226 Difference]: Without dead ends: 90 [2020-09-25 08:59:11,341 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-09-25 08:59:11,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-09-25 08:59:11,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 72. [2020-09-25 08:59:11,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-09-25 08:59:11,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 75 transitions. [2020-09-25 08:59:11,352 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 75 transitions. Word has length 23 [2020-09-25 08:59:11,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:59:11,352 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 75 transitions. [2020-09-25 08:59:11,352 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 08:59:11,353 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 75 transitions. [2020-09-25 08:59:11,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-25 08:59:11,354 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:59:11,354 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] [2020-09-25 08:59:11,354 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:59:11,354 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:59:11,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:59:11,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1518762392, now seen corresponding path program 1 times [2020-09-25 08:59:11,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:59:11,356 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1570146166] [2020-09-25 08:59:11,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:59:11,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:11,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:11,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:11,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 08:59:11,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:11,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-09-25 08:59:11,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:11,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:11,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:59:11,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 08:59:11,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 08:59:11,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:11,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:59:11,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:11,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:11,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:11,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:59:11,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:11,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:59:11,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:11,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:11,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:11,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:11,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:11,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:11,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:59:11,644 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1570146166] [2020-09-25 08:59:11,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:59:11,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 08:59:11,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877280533] [2020-09-25 08:59:11,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 08:59:11,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:59:11,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 08:59:11,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:59:11,646 INFO L87 Difference]: Start difference. First operand 72 states and 75 transitions. Second operand 6 states. [2020-09-25 08:59:11,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:59:11,840 INFO L93 Difference]: Finished difference Result 120 states and 126 transitions. [2020-09-25 08:59:11,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 08:59:11,842 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-09-25 08:59:11,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:59:11,846 INFO L225 Difference]: With dead ends: 120 [2020-09-25 08:59:11,846 INFO L226 Difference]: Without dead ends: 117 [2020-09-25 08:59:11,847 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:59:11,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-09-25 08:59:11,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 81. [2020-09-25 08:59:11,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-09-25 08:59:11,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 85 transitions. [2020-09-25 08:59:11,867 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 85 transitions. Word has length 27 [2020-09-25 08:59:11,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:59:11,868 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 85 transitions. [2020-09-25 08:59:11,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 08:59:11,868 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 85 transitions. [2020-09-25 08:59:11,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-25 08:59:11,870 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:59:11,870 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] [2020-09-25 08:59:11,870 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:59:11,870 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:59:11,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:59:11,871 INFO L82 PathProgramCache]: Analyzing trace with hash 2047332937, now seen corresponding path program 1 times [2020-09-25 08:59:11,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:59:11,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [855845623] [2020-09-25 08:59:11,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:59:11,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:11,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:11,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:12,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:12,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 08:59:12,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:59:12,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 424 [2020-09-25 08:59:12,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:12,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:12,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:59:12,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-09-25 08:59:12,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 08:59:12,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:12,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:59:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:12,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:12,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:12,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:59:12,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:12,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:59:12,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:12,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:12,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:12,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:12,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:12,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:12,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:59:12,464 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [855845623] [2020-09-25 08:59:12,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:59:12,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 08:59:12,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988204881] [2020-09-25 08:59:12,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 08:59:12,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:59:12,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 08:59:12,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:59:12,467 INFO L87 Difference]: Start difference. First operand 81 states and 85 transitions. Second operand 6 states. [2020-09-25 08:59:12,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:59:12,655 INFO L93 Difference]: Finished difference Result 136 states and 143 transitions. [2020-09-25 08:59:12,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:59:12,656 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2020-09-25 08:59:12,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:59:12,657 INFO L225 Difference]: With dead ends: 136 [2020-09-25 08:59:12,658 INFO L226 Difference]: Without dead ends: 114 [2020-09-25 08:59:12,658 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:59:12,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-09-25 08:59:12,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 86. [2020-09-25 08:59:12,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-09-25 08:59:12,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 90 transitions. [2020-09-25 08:59:12,668 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 90 transitions. Word has length 36 [2020-09-25 08:59:12,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:59:12,668 INFO L479 AbstractCegarLoop]: Abstraction has 86 states and 90 transitions. [2020-09-25 08:59:12,668 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 08:59:12,668 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 90 transitions. [2020-09-25 08:59:12,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-25 08:59:12,670 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:59:12,670 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:59:12,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:59:12,671 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:59:12,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:59:12,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1237644091, now seen corresponding path program 1 times [2020-09-25 08:59:12,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:59:12,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [237771882] [2020-09-25 08:59:12,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:59:12,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:12,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:13,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:13,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 08:59:13,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:13,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 702 [2020-09-25 08:59:13,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:13,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:13,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 08:59:13,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 08:59:13,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 08:59:13,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:13,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:59:13,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:13,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:13,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:13,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:59:13,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:13,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:59:13,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:13,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:13,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:13,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:13,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:13,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:13,975 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:59:13,976 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [237771882] [2020-09-25 08:59:13,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:59:13,976 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 08:59:13,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423362785] [2020-09-25 08:59:13,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 08:59:13,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:59:13,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 08:59:13,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2020-09-25 08:59:13,979 INFO L87 Difference]: Start difference. First operand 86 states and 90 transitions. Second operand 15 states. [2020-09-25 08:59:15,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:59:15,193 INFO L93 Difference]: Finished difference Result 166 states and 175 transitions. [2020-09-25 08:59:15,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 08:59:15,193 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 40 [2020-09-25 08:59:15,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:59:15,195 INFO L225 Difference]: With dead ends: 166 [2020-09-25 08:59:15,195 INFO L226 Difference]: Without dead ends: 163 [2020-09-25 08:59:15,196 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=192, Invalid=564, Unknown=0, NotChecked=0, Total=756 [2020-09-25 08:59:15,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-09-25 08:59:15,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 106. [2020-09-25 08:59:15,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-09-25 08:59:15,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 112 transitions. [2020-09-25 08:59:15,216 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 112 transitions. Word has length 40 [2020-09-25 08:59:15,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:59:15,220 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 112 transitions. [2020-09-25 08:59:15,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 08:59:15,220 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 112 transitions. [2020-09-25 08:59:15,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 08:59:15,223 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:59:15,223 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:59:15,223 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 08:59:15,227 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:59:15,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:59:15,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1411163060, now seen corresponding path program 1 times [2020-09-25 08:59:15,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:59:15,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [32536687] [2020-09-25 08:59:15,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:59:15,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:15,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:15,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:15,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:16,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:17,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:17,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:19,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:19,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:19,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:19,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 08:59:19,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 08:59:19,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4424 [2020-09-25 08:59:19,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:19,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:19,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:59:19,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 08:59:19,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 08:59:19,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:19,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:59:19,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:19,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:19,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:19,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:59:19,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:19,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:59:19,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:19,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:19,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:19,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:19,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:19,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:19,794 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:59:19,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [32536687] [2020-09-25 08:59:19,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:59:19,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 08:59:19,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978144429] [2020-09-25 08:59:19,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:59:19,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:59:19,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:59:19,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:59:19,797 INFO L87 Difference]: Start difference. First operand 106 states and 112 transitions. Second operand 7 states. [2020-09-25 08:59:20,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:59:20,050 INFO L93 Difference]: Finished difference Result 133 states and 140 transitions. [2020-09-25 08:59:20,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 08:59:20,050 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 43 [2020-09-25 08:59:20,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:59:20,052 INFO L225 Difference]: With dead ends: 133 [2020-09-25 08:59:20,052 INFO L226 Difference]: Without dead ends: 94 [2020-09-25 08:59:20,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-09-25 08:59:20,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-09-25 08:59:20,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2020-09-25 08:59:20,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-09-25 08:59:20,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 99 transitions. [2020-09-25 08:59:20,085 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 99 transitions. Word has length 43 [2020-09-25 08:59:20,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:59:20,086 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 99 transitions. [2020-09-25 08:59:20,086 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:59:20,086 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 99 transitions. [2020-09-25 08:59:20,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-25 08:59:20,087 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:59:20,087 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:59:20,088 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 08:59:20,089 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:59:20,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:59:20,089 INFO L82 PathProgramCache]: Analyzing trace with hash -1215747511, now seen corresponding path program 1 times [2020-09-25 08:59:20,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:59:20,090 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1178997923] [2020-09-25 08:59:20,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:59:20,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:20,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:21,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:21,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 08:59:21,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:21,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1124 [2020-09-25 08:59:21,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:21,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:21,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 08:59:21,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 08:59:21,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 08:59:21,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:22,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:59:22,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:22,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:22,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:22,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:59:22,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:22,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:59:22,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:22,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:22,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:22,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:22,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:22,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:22,127 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:59:22,127 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1178997923] [2020-09-25 08:59:22,127 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:59:22,128 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-25 08:59:22,128 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599840635] [2020-09-25 08:59:22,128 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-25 08:59:22,129 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:59:22,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-25 08:59:22,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2020-09-25 08:59:22,129 INFO L87 Difference]: Start difference. First operand 94 states and 99 transitions. Second operand 19 states. [2020-09-25 08:59:23,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:59:23,876 INFO L93 Difference]: Finished difference Result 169 states and 178 transitions. [2020-09-25 08:59:23,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-25 08:59:23,877 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 47 [2020-09-25 08:59:23,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:59:23,878 INFO L225 Difference]: With dead ends: 169 [2020-09-25 08:59:23,878 INFO L226 Difference]: Without dead ends: 166 [2020-09-25 08:59:23,879 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=285, Invalid=1121, Unknown=0, NotChecked=0, Total=1406 [2020-09-25 08:59:23,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-09-25 08:59:23,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 103. [2020-09-25 08:59:23,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-09-25 08:59:23,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 108 transitions. [2020-09-25 08:59:23,887 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 108 transitions. Word has length 47 [2020-09-25 08:59:23,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:59:23,887 INFO L479 AbstractCegarLoop]: Abstraction has 103 states and 108 transitions. [2020-09-25 08:59:23,887 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-25 08:59:23,887 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 108 transitions. [2020-09-25 08:59:23,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-09-25 08:59:23,888 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:59:23,889 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:59:23,889 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 08:59:23,889 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:59:23,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:59:23,890 INFO L82 PathProgramCache]: Analyzing trace with hash 632390076, now seen corresponding path program 1 times [2020-09-25 08:59:23,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:59:23,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1568983347] [2020-09-25 08:59:23,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:59:23,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:23,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:23,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:24,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:27,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:28,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:28,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:28,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 08:59:28,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:59:28,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-25 08:59:28,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:28,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:28,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:59:28,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-09-25 08:59:28,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 08:59:28,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:29,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:59:29,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:29,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:29,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:29,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:59:29,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:29,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:59:29,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:29,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:29,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:29,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:29,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:29,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:29,031 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 08:59:29,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1568983347] [2020-09-25 08:59:29,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:59:29,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 08:59:29,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899872260] [2020-09-25 08:59:29,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 08:59:29,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:59:29,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 08:59:29,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:59:29,035 INFO L87 Difference]: Start difference. First operand 103 states and 108 transitions. Second operand 6 states. [2020-09-25 08:59:29,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:59:29,227 INFO L93 Difference]: Finished difference Result 131 states and 138 transitions. [2020-09-25 08:59:29,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:59:29,228 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2020-09-25 08:59:29,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:59:29,229 INFO L225 Difference]: With dead ends: 131 [2020-09-25 08:59:29,229 INFO L226 Difference]: Without dead ends: 109 [2020-09-25 08:59:29,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:59:29,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-09-25 08:59:29,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 106. [2020-09-25 08:59:29,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-09-25 08:59:29,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 111 transitions. [2020-09-25 08:59:29,236 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 111 transitions. Word has length 49 [2020-09-25 08:59:29,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:59:29,236 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 111 transitions. [2020-09-25 08:59:29,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 08:59:29,236 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 111 transitions. [2020-09-25 08:59:29,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 08:59:29,237 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:59:29,238 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:59:29,238 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 08:59:29,238 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:59:29,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:59:29,239 INFO L82 PathProgramCache]: Analyzing trace with hash 231328440, now seen corresponding path program 2 times [2020-09-25 08:59:29,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:59:29,239 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1782672912] [2020-09-25 08:59:29,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:59:29,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:29,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:30,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:30,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 08:59:30,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:30,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1106 [2020-09-25 08:59:30,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:30,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:30,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 08:59:30,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 08:59:30,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 08:59:30,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:59:31,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:59:31,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:31,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:31,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:31,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:59:31,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:31,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:59:31,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:31,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:31,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:31,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:31,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:31,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:31,206 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:59:31,207 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1782672912] [2020-09-25 08:59:31,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:59:31,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-25 08:59:31,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774455260] [2020-09-25 08:59:31,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-25 08:59:31,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:59:31,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-25 08:59:31,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2020-09-25 08:59:31,209 INFO L87 Difference]: Start difference. First operand 106 states and 111 transitions. Second operand 19 states. [2020-09-25 08:59:32,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:59:32,615 INFO L93 Difference]: Finished difference Result 186 states and 195 transitions. [2020-09-25 08:59:32,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-25 08:59:32,621 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 53 [2020-09-25 08:59:32,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:59:32,622 INFO L225 Difference]: With dead ends: 186 [2020-09-25 08:59:32,622 INFO L226 Difference]: Without dead ends: 183 [2020-09-25 08:59:32,624 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=317, Invalid=1015, Unknown=0, NotChecked=0, Total=1332 [2020-09-25 08:59:32,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-09-25 08:59:32,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 119. [2020-09-25 08:59:32,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-09-25 08:59:32,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 126 transitions. [2020-09-25 08:59:32,630 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 126 transitions. Word has length 53 [2020-09-25 08:59:32,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:59:32,630 INFO L479 AbstractCegarLoop]: Abstraction has 119 states and 126 transitions. [2020-09-25 08:59:32,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-25 08:59:32,631 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 126 transitions. [2020-09-25 08:59:32,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-25 08:59:32,632 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:59:32,632 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:59:32,632 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 08:59:32,633 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:59:32,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:59:32,633 INFO L82 PathProgramCache]: Analyzing trace with hash -2144912159, now seen corresponding path program 1 times [2020-09-25 08:59:32,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:59:32,633 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [543497742] [2020-09-25 08:59:32,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:59:32,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:32,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:32,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:33,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:33,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:33,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:34,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:35,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:36,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:36,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-25 08:59:36,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 08:59:36,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4114 [2020-09-25 08:59:36,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:36,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:36,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 08:59:36,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-09-25 08:59:36,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 08:59:36,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:37,675 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 67 [2020-09-25 08:59:37,889 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2020-09-25 08:59:38,238 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 56 [2020-09-25 08:59:38,547 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 53 [2020-09-25 08:59:39,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:59:39,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:39,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:39,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:39,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:59:39,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:39,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:59:39,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:39,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:39,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:39,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:39,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:39,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:59:39,167 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:59:39,167 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [543497742] [2020-09-25 08:59:39,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:59:39,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-09-25 08:59:39,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168541069] [2020-09-25 08:59:39,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-09-25 08:59:39,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:59:39,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-09-25 08:59:39,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=415, Unknown=0, NotChecked=0, Total=462 [2020-09-25 08:59:39,169 INFO L87 Difference]: Start difference. First operand 119 states and 126 transitions. Second operand 22 states. [2020-09-25 08:59:39,806 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2020-09-25 08:59:40,011 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 68 [2020-09-25 08:59:40,241 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2020-09-25 08:59:40,611 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 71 [2020-09-25 08:59:40,866 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 74 [2020-09-25 08:59:41,055 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 65 [2020-09-25 08:59:41,273 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2020-09-25 08:59:41,545 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2020-09-25 08:59:42,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:59:42,978 INFO L93 Difference]: Finished difference Result 180 states and 189 transitions. [2020-09-25 08:59:42,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-25 08:59:42,979 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 56 [2020-09-25 08:59:42,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:59:42,981 INFO L225 Difference]: With dead ends: 180 [2020-09-25 08:59:42,981 INFO L226 Difference]: Without dead ends: 178 [2020-09-25 08:59:42,983 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=318, Invalid=1752, Unknown=0, NotChecked=0, Total=2070 [2020-09-25 08:59:42,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-09-25 08:59:42,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 143. [2020-09-25 08:59:42,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-09-25 08:59:42,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 151 transitions. [2020-09-25 08:59:42,990 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 151 transitions. Word has length 56 [2020-09-25 08:59:42,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:59:42,991 INFO L479 AbstractCegarLoop]: Abstraction has 143 states and 151 transitions. [2020-09-25 08:59:42,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-09-25 08:59:42,991 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 151 transitions. [2020-09-25 08:59:42,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-25 08:59:42,992 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:59:42,992 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:59:42,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 08:59:42,993 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:59:42,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:59:42,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1979586344, now seen corresponding path program 1 times [2020-09-25 08:59:42,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:59:42,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [493248093] [2020-09-25 08:59:42,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:59:43,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:43,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:43,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:43,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:43,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:44,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:44,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:45,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:48,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:48,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 08:59:48,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 08:59:48,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 08:59:48,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:48,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:48,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 08:59:48,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-09-25 08:59:48,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 08:59:48,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:59:48,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:59:48,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:48,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:48,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:48,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:59:48,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:48,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:59:48,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:48,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:48,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:48,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:48,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:48,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:59:48,387 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:59:48,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [493248093] [2020-09-25 08:59:48,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:59:48,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 08:59:48,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651629071] [2020-09-25 08:59:48,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 08:59:48,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:59:48,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 08:59:48,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2020-09-25 08:59:48,389 INFO L87 Difference]: Start difference. First operand 143 states and 151 transitions. Second operand 15 states. [2020-09-25 08:59:49,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:59:49,408 INFO L93 Difference]: Finished difference Result 193 states and 203 transitions. [2020-09-25 08:59:49,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 08:59:49,408 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 60 [2020-09-25 08:59:49,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:59:49,410 INFO L225 Difference]: With dead ends: 193 [2020-09-25 08:59:49,410 INFO L226 Difference]: Without dead ends: 166 [2020-09-25 08:59:49,412 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=159, Invalid=711, Unknown=0, NotChecked=0, Total=870 [2020-09-25 08:59:49,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-09-25 08:59:49,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 135. [2020-09-25 08:59:49,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-09-25 08:59:49,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 142 transitions. [2020-09-25 08:59:49,419 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 142 transitions. Word has length 60 [2020-09-25 08:59:49,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:59:49,419 INFO L479 AbstractCegarLoop]: Abstraction has 135 states and 142 transitions. [2020-09-25 08:59:49,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 08:59:49,419 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 142 transitions. [2020-09-25 08:59:49,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-25 08:59:49,420 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:59:49,420 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:59:49,420 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 08:59:49,421 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:59:49,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:59:49,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1025074422, now seen corresponding path program 1 times [2020-09-25 08:59:49,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:59:49,422 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1760859352] [2020-09-25 08:59:49,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:59:49,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:49,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:51,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:51,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 08:59:51,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:51,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1679 [2020-09-25 08:59:51,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:51,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:51,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 08:59:51,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 08:59:51,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 08:59:51,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:59:52,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:59:52,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:52,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:52,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:59:52,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:59:52,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:59:52,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:59:52,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:59:52,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:59:52,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:59:52,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:59:52,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:59:52,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:59:52,256 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:59:52,257 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1760859352] [2020-09-25 08:59:52,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:59:52,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-09-25 08:59:52,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521611782] [2020-09-25 08:59:52,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-25 08:59:52,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:59:52,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-25 08:59:52,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=491, Unknown=0, NotChecked=0, Total=600 [2020-09-25 08:59:52,259 INFO L87 Difference]: Start difference. First operand 135 states and 142 transitions. Second operand 25 states. [2020-09-25 08:59:52,864 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2020-09-25 08:59:55,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:59:55,220 INFO L93 Difference]: Finished difference Result 163 states and 173 transitions. [2020-09-25 08:59:55,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-09-25 08:59:55,220 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 60 [2020-09-25 08:59:55,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:59:55,222 INFO L225 Difference]: With dead ends: 163 [2020-09-25 08:59:55,222 INFO L226 Difference]: Without dead ends: 160 [2020-09-25 08:59:55,224 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 542 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=640, Invalid=2116, Unknown=0, NotChecked=0, Total=2756 [2020-09-25 08:59:55,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-09-25 08:59:55,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 103. [2020-09-25 08:59:55,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-09-25 08:59:55,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 108 transitions. [2020-09-25 08:59:55,230 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 108 transitions. Word has length 60 [2020-09-25 08:59:55,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:59:55,230 INFO L479 AbstractCegarLoop]: Abstraction has 103 states and 108 transitions. [2020-09-25 08:59:55,230 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-25 08:59:55,231 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 108 transitions. [2020-09-25 08:59:55,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-25 08:59:55,231 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:59:55,231 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:59:55,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 08:59:55,232 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:59:55,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:59:55,232 INFO L82 PathProgramCache]: Analyzing trace with hash -412836324, now seen corresponding path program 2 times [2020-09-25 08:59:55,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:59:55,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [560732801] [2020-09-25 08:59:55,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:59:55,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:59:55,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:55,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:55,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:56,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:56,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:57,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:57,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:58,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:58,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:59:59,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:00:00,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:00:00,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 09:00:00,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 09:00:00,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 09:00:00,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:00:00,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:00:00,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 09:00:00,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-09-25 09:00:00,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 09:00:00,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:00:00,922 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 51 [2020-09-25 09:00:01,218 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 45 [2020-09-25 09:00:01,389 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 50