/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=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:29:43,386 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:29:43,390 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:29:43,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:29:43,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:29:43,444 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:29:43,446 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:29:43,450 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:29:43,452 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:29:43,453 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:29:43,454 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:29:43,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:29:43,456 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:29:43,460 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:29:43,463 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:29:43,465 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:29:43,467 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:29:43,469 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:29:43,470 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:29:43,478 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:29:43,480 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:29:43,481 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:29:43,482 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:29:43,483 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:29:43,488 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:29:43,488 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:29:43,488 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:29:43,491 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:29:43,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:29:43,493 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:29:43,493 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:29:43,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:29:43,495 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:29:43,495 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:29:43,497 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:29:43,497 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:29:43,498 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:29:43,498 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:29:43,498 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:29:43,499 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:29:43,501 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:29:43,501 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 23:29:43,549 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:29:43,550 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:29:43,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:29:43,553 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:29:43,553 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:29:43,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:29:43,553 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:29:43,554 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:29:43,554 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:29:43,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:29:43,555 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:29:43,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:29:43,556 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:29:43,556 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:29:43,556 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:29:43,557 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:29:43,557 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:29:43,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:29:43,557 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:29:43,557 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:29:43,558 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:29:43,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:29:43,558 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:29:43,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:29:43,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:29:43,559 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:29:43,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:29:43,559 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:29:43,559 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:29:43,559 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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true; [2020-09-24 23:29:43,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:29:44,004 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:29:44,008 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:29:44,010 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:29:44,011 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:29:44,012 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product36.cil.c [2020-09-24 23:29:44,101 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0868985e4/2973e13dbd5848d38166be1036d53b92/FLAGffa5b3037 [2020-09-24 23:29:44,690 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:29:44,691 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product36.cil.c [2020-09-24 23:29:44,711 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0868985e4/2973e13dbd5848d38166be1036d53b92/FLAGffa5b3037 [2020-09-24 23:29:44,991 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0868985e4/2973e13dbd5848d38166be1036d53b92 [2020-09-24 23:29:45,003 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:29:45,009 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:29:45,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:29:45,010 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:29:45,014 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:29:45,015 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:29:44" (1/1) ... [2020-09-24 23:29:45,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29040ee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:29:45, skipping insertion in model container [2020-09-24 23:29:45,020 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:29:44" (1/1) ... [2020-09-24 23:29:45,028 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:29:45,095 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:29:45,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:29:45,564 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:29:45,647 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:29:45,682 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:29:45,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:29:45 WrapperNode [2020-09-24 23:29:45,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:29:45,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:29:45,684 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:29:45,684 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:29:45,697 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:29:45" (1/1) ... [2020-09-24 23:29:45,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:29:45" (1/1) ... [2020-09-24 23:29:45,718 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:29:45" (1/1) ... [2020-09-24 23:29:45,719 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:29:45" (1/1) ... [2020-09-24 23:29:45,752 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:29:45" (1/1) ... [2020-09-24 23:29:45,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:29:45" (1/1) ... [2020-09-24 23:29:45,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:29:45" (1/1) ... [2020-09-24 23:29:45,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:29:45,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:29:45,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:29:45,778 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:29:45,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:29:45" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:29:45,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:29:45,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:29:45,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 23:29:45,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 23:29:45,858 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 23:29:45,858 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 23:29:45,858 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 23:29:45,858 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 23:29:45,859 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 23:29:45,860 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 23:29:45,860 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 23:29:45,860 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 23:29:45,860 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 23:29:45,860 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 23:29:45,860 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 23:29:45,861 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 23:29:45,861 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 23:29:45,862 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 23:29:45,862 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 23:29:45,862 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 23:29:45,862 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 23:29:45,863 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 23:29:45,863 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 23:29:45,863 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 23:29:45,863 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 23:29:45,864 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 23:29:45,864 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 23:29:45,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 23:29:45,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 23:29:45,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 23:29:45,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 23:29:45,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 23:29:45,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 23:29:45,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 23:29:45,865 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 23:29:45,866 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 23:29:45,866 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 23:29:45,866 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 23:29:45,866 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:29:45,866 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:29:45,866 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:29:45,867 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 23:29:45,867 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 23:29:45,867 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 23:29:45,867 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 23:29:45,867 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 23:29:45,867 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 23:29:45,868 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 23:29:45,868 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 23:29:45,868 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 23:29:45,868 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 23:29:45,868 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 23:29:45,869 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 23:29:45,869 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 23:29:45,869 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 23:29:45,869 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 23:29:45,869 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 23:29:45,870 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 23:29:45,870 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 23:29:45,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:29:45,870 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 23:29:45,870 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 23:29:45,870 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 23:29:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 23:29:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 23:29:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 23:29:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 23:29:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 23:29:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 23:29:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 23:29:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:29:45,873 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:29:45,874 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 23:29:45,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:29:45,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:29:45,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:29:45,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:29:45,875 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 23:29:45,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:29:45,875 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 23:29:45,875 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 23:29:45,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:29:45,876 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 23:29:45,876 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 23:29:45,876 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 23:29:45,876 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 23:29:45,876 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 23:29:45,877 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 23:29:45,877 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:29:45,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:29:45,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:29:45,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:29:46,949 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:29:46,949 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 23:29:46,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:29:46 BoogieIcfgContainer [2020-09-24 23:29:46,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:29:46,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:29:46,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:29:46,962 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:29:46,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:29:44" (1/3) ... [2020-09-24 23:29:46,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2883c2ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:29:46, skipping insertion in model container [2020-09-24 23:29:46,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:29:45" (2/3) ... [2020-09-24 23:29:46,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2883c2ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:29:46, skipping insertion in model container [2020-09-24 23:29:46,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:29:46" (3/3) ... [2020-09-24 23:29:46,966 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product36.cil.c [2020-09-24 23:29:46,978 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:29:46,989 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:29:47,012 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:29:47,046 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:29:47,047 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:29:47,047 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:29:47,047 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:29:47,047 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:29:47,047 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:29:47,047 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:29:47,047 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:29:47,082 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states. [2020-09-24 23:29:47,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 23:29:47,100 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:29:47,102 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:29:47,102 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:29:47,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:29:47,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1033241294, now seen corresponding path program 1 times [2020-09-24 23:29:47,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:29:47,125 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1086752080] [2020-09-24 23:29:47,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:29:47,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:29:47,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:29:47,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:29:49,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:29:50,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:29:51,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:29:52,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:29:52,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 23:29:52,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:29:52,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-24 23:29:52,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:29:52,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:29:52,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 23:29:52,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-24 23:29:52,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 23:29:52,933 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:29:52,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:29:52,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:29:53,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:29:53,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:29:53,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:29:53,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:29:53,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 350 [2020-09-24 23:29:53,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:29:53,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:29:53,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:29:53,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 23:29:53,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:29:53,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:29:53,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:29:53,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:29:53,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:29:53,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:29:53,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:29:53,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:29:53,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:29:53,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:29:53,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:29:53,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:29:53,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:29:53,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:29:53,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:29:53,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:29:53,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:29:53,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:29:53,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:29:53,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:29:53,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:29:53,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:29:53,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:29:53,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:29:53,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:29:53,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:29:53,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:29:53,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:29:53,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:29:53,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:29:53,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:29:53,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:29:53,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:29:53,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:29:53,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:29:53,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:29:53,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:29:53,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:29:53,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:29:53,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:29:53,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:29:53,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:29:53,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:29:53,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:29:53,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:29:53,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:29:53,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:29:53,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:29:53,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:29:53,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:29:53,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:29:53,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:29:53,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:29:53,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:29:53,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:29:53,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:29:53,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:29:53,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:29:53,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:29:53,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:29:53,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:29:53,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 23:29:53,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:29:53,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:29:53,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:29:53,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:29:53,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:29:53,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:29:53,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:29:53,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:29:53,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:29:53,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:29:53,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:29:53,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:29:53,565 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1086752080] [2020-09-24 23:29:53,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:29:53,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 23:29:53,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788953735] [2020-09-24 23:29:53,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 23:29:53,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:29:53,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 23:29:53,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 23:29:53,610 INFO L87 Difference]: Start difference. First operand 297 states. Second operand 8 states. [2020-09-24 23:29:54,246 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:29:55,427 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:29:55,724 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:29:56,098 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:29:56,434 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:29:56,773 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:29:57,418 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:29:57,711 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:29:58,103 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:29:59,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:29:59,155 INFO L93 Difference]: Finished difference Result 559 states and 699 transitions. [2020-09-24 23:29:59,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 23:29:59,157 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 23:29:59,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:29:59,179 INFO L225 Difference]: With dead ends: 559 [2020-09-24 23:29:59,179 INFO L226 Difference]: Without dead ends: 379 [2020-09-24 23:29:59,186 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 23:29:59,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2020-09-24 23:29:59,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 334. [2020-09-24 23:29:59,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2020-09-24 23:29:59,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 382 transitions. [2020-09-24 23:29:59,318 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 382 transitions. Word has length 142 [2020-09-24 23:29:59,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:29:59,320 INFO L479 AbstractCegarLoop]: Abstraction has 334 states and 382 transitions. [2020-09-24 23:29:59,320 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 23:29:59,320 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 382 transitions. [2020-09-24 23:29:59,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-24 23:29:59,326 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:29:59,326 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:29:59,327 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:29:59,327 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:29:59,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:29:59,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1702989338, now seen corresponding path program 1 times [2020-09-24 23:29:59,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:29:59,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1418059916] [2020-09-24 23:29:59,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:29:59,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:29:59,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:29:59,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:29:59,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:00,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:04,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:04,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 245 [2020-09-24 23:30:04,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:30:04,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 23:30:04,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:04,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:30:04,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 23:30:04,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-24 23:30:04,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:04,795 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:30:04,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:30:04,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:04,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:05,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:05,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:30:05,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:05,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-09-24 23:30:05,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:05,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:05,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:05,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 23:30:05,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:30:05,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:30:05,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:05,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:05,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:05,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:05,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:05,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:30:05,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:05,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:05,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:05,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:05,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:05,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:30:05,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:05,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:05,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:05,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:05,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:05,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:30:05,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:05,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:05,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:05,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:05,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:05,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:30:05,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:05,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:05,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:05,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:05,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:05,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:30:05,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:05,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:05,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:05,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:30:05,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:05,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:30:05,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:05,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:05,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:05,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:05,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:05,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:30:05,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:05,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:05,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:05,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:05,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:05,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-24 23:30:05,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:05,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:05,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:05,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:30:05,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:05,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:30:05,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:05,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:05,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 23:30:05,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 23:30:05,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:05,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:30:05,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:05,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:05,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:05,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 23:30:05,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:05,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 23:30:05,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:05,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:05,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:05,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 23:30:05,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:05,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:30:05,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:05,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:05,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:05,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:05,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:05,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:05,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:05,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:05,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:05,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:05,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:05,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 23:30:05,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:05,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:05,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:05,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:05,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:30:05,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:30:05,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 23:30:05,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:05,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:30:05,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 23:30:05,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:30:05,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:05,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:30:05,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:05,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:05,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:05,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:30:05,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:05,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 23:30:05,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:05,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:30:05,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:05,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 23:30:05,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:05,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:30:05,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:05,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:05,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:05,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:30:05,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:05,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:30:05,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:05,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:05,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:05,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:05,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:05,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:30:05,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:05,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:05,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:05,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:30:05,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:05,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:05,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:05,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:05,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 23:30:05,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:05,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:05,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 23:30:05,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:05,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:05,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:05,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:05,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:05,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:05,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:05,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:05,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:30:05,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:05,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:05,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-24 23:30:05,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:05,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:05,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:05,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:05,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:05,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:05,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:05,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:05,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:30:05,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:05,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:05,625 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 23:30:05,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1418059916] [2020-09-24 23:30:05,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:30:05,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 23:30:05,627 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822821802] [2020-09-24 23:30:05,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 23:30:05,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:30:05,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 23:30:05,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-09-24 23:30:05,633 INFO L87 Difference]: Start difference. First operand 334 states and 382 transitions. Second operand 12 states. [2020-09-24 23:30:06,143 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:30:07,364 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:30:07,759 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:30:08,107 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:30:08,494 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 23:30:08,889 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:30:09,270 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:30:09,601 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:30:10,373 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:30:10,745 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:30:11,134 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 23:30:11,516 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:30:11,906 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:30:12,243 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:30:14,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:30:14,304 INFO L93 Difference]: Finished difference Result 980 states and 1271 transitions. [2020-09-24 23:30:14,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-24 23:30:14,305 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 200 [2020-09-24 23:30:14,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:30:14,315 INFO L225 Difference]: With dead ends: 980 [2020-09-24 23:30:14,315 INFO L226 Difference]: Without dead ends: 756 [2020-09-24 23:30:14,320 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=198, Invalid=672, Unknown=0, NotChecked=0, Total=870 [2020-09-24 23:30:14,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2020-09-24 23:30:14,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 555. [2020-09-24 23:30:14,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2020-09-24 23:30:14,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 647 transitions. [2020-09-24 23:30:14,435 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 647 transitions. Word has length 200 [2020-09-24 23:30:14,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:30:14,435 INFO L479 AbstractCegarLoop]: Abstraction has 555 states and 647 transitions. [2020-09-24 23:30:14,436 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 23:30:14,436 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 647 transitions. [2020-09-24 23:30:14,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-24 23:30:14,440 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:30:14,440 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:30:14,440 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:30:14,440 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:30:14,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:30:14,441 INFO L82 PathProgramCache]: Analyzing trace with hash 1523867426, now seen corresponding path program 1 times [2020-09-24 23:30:14,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:30:14,441 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [949433905] [2020-09-24 23:30:14,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:30:14,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:14,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:14,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:15,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:19,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:19,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-09-24 23:30:19,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:30:19,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-24 23:30:19,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:19,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 23:30:19,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 23:30:19,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-09-24 23:30:19,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:19,883 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:30:19,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:30:19,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:19,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:20,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:20,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:30:20,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:20,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-09-24 23:30:20,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:20,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:20,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:20,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 23:30:20,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:30:20,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:30:20,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:20,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:20,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:20,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:20,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:20,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:20,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:20,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:20,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:20,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:20,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:20,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:30:20,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:20,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:20,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:20,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:20,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:20,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:30:20,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:20,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:20,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:20,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:20,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:20,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:30:20,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:20,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:20,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:20,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:20,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:20,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:30:20,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:20,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:20,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:20,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:30:20,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:20,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:30:20,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:20,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:20,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:20,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:20,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:20,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:20,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:20,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:20,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:20,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:20,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:20,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 23:30:20,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:20,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:20,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:20,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:20,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:30:20,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:30:20,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-24 23:30:20,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:20,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:20,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:20,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-24 23:30:20,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:20,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:30:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:20,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:20,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:20,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:20,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:30:20,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:30:20,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 23:30:20,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:20,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:20,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:20,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:20,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:20,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:30:20,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:20,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:20,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:20,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:30:20,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:20,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:30:20,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:20,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:20,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:20,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:20,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:20,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:30:20,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:20,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:20,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:20,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:30:20,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:20,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:20,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:20,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:20,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:20,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:20,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:20,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 23:30:20,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:20,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:20,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:20,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:20,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:20,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:30:20,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:20,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:30:20,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:20,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:30:20,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:20,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-24 23:30:20,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:20,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:20,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:20,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:20,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:20,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:30:20,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:20,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:20,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:30:20,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:20,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:20,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:30:20,597 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [949433905] [2020-09-24 23:30:20,598 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:30:20,598 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 23:30:20,598 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557374660] [2020-09-24 23:30:20,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 23:30:20,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:30:20,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 23:30:20,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:30:20,603 INFO L87 Difference]: Start difference. First operand 555 states and 647 transitions. Second operand 9 states. [2020-09-24 23:30:21,269 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:30:22,618 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:30:22,955 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:30:23,306 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:30:23,663 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:30:23,984 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:30:24,315 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:30:24,631 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:30:25,135 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:30:26,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:30:26,730 INFO L93 Difference]: Finished difference Result 1638 states and 2132 transitions. [2020-09-24 23:30:26,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 23:30:26,731 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 176 [2020-09-24 23:30:26,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:30:26,741 INFO L225 Difference]: With dead ends: 1638 [2020-09-24 23:30:26,741 INFO L226 Difference]: Without dead ends: 1104 [2020-09-24 23:30:26,745 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 23:30:26,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2020-09-24 23:30:26,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 909. [2020-09-24 23:30:26,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 909 states. [2020-09-24 23:30:26,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1060 transitions. [2020-09-24 23:30:26,944 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1060 transitions. Word has length 176 [2020-09-24 23:30:26,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:30:26,945 INFO L479 AbstractCegarLoop]: Abstraction has 909 states and 1060 transitions. [2020-09-24 23:30:26,946 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 23:30:26,946 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1060 transitions. [2020-09-24 23:30:26,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 23:30:26,951 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:30:26,951 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:30:26,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:30:26,951 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:30:26,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:30:26,952 INFO L82 PathProgramCache]: Analyzing trace with hash -788765814, now seen corresponding path program 1 times [2020-09-24 23:30:26,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:30:26,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1816092943] [2020-09-24 23:30:26,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:30:27,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:27,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:27,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:27,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 23:30:27,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:27,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 728 [2020-09-24 23:30:27,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:27,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:30:27,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-24 23:30:27,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:30:27,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:28,025 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:30:28,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:30:28,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:28,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:28,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:28,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:30:28,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:28,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-24 23:30:28,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:28,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:28,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:28,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:28,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:28,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:30:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:28,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:28,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:28,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:28,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:28,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:30:28,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:28,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:28,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:28,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:28,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:28,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:30:28,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:28,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:28,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:28,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:28,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:28,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:28,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:28,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:28,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:28,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:28,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:28,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:30:28,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:28,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:28,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:28,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:28,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:28,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:30:28,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:28,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:28,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:28,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:28,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:28,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:30:28,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:28,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:28,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:28,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:28,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:28,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:28,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:28,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:28,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:28,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:28,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:28,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:30:28,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:28,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:28,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:28,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:30:28,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:28,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:30:28,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:28,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:28,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:28,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:28,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:28,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 23:30:28,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:28,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:28,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:28,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:30:28,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:28,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:28,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:28,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:28,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:28,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:28,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:28,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 23:30:28,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:28,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:28,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:28,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:30:28,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:28,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-24 23:30:28,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:28,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:30:28,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 23:30:28,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:30:28,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:28,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:30:28,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:28,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:28,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:28,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:30:28,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:28,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 23:30:28,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:28,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:30:28,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:30:28,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:30:28,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:28,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:30:28,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:28,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:28,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:28,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:30:28,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:28,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:30:28,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:28,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:30:28,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:28,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:30:28,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:28,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:30:28,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:28,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:28,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:28,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:30:28,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:28,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:28,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:28,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:28,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 23:30:28,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:28,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:28,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 23:30:28,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:28,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:28,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:28,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:28,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:28,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:28,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:28,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:28,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:30:28,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:28,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:28,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 23:30:28,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:28,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:28,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:28,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:28,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:28,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:28,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:28,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:28,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:30:28,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:28,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:28,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:30:28,479 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1816092943] [2020-09-24 23:30:28,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:30:28,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 23:30:28,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584141479] [2020-09-24 23:30:28,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 23:30:28,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:30:28,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 23:30:28,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:30:28,481 INFO L87 Difference]: Start difference. First operand 909 states and 1060 transitions. Second operand 10 states. [2020-09-24 23:30:29,736 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:30:30,015 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:30:30,336 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:30:30,641 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:30:30,925 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:30:32,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:30:32,811 INFO L93 Difference]: Finished difference Result 2281 states and 2995 transitions. [2020-09-24 23:30:32,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 23:30:32,815 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2020-09-24 23:30:32,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:30:32,827 INFO L225 Difference]: With dead ends: 2281 [2020-09-24 23:30:32,827 INFO L226 Difference]: Without dead ends: 1482 [2020-09-24 23:30:32,832 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-24 23:30:32,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1482 states. [2020-09-24 23:30:32,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1482 to 933. [2020-09-24 23:30:32,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 933 states. [2020-09-24 23:30:32,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1084 transitions. [2020-09-24 23:30:32,960 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1084 transitions. Word has length 194 [2020-09-24 23:30:32,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:30:32,961 INFO L479 AbstractCegarLoop]: Abstraction has 933 states and 1084 transitions. [2020-09-24 23:30:32,961 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 23:30:32,961 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1084 transitions. [2020-09-24 23:30:32,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 23:30:32,965 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:30:32,965 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:30:32,965 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:30:32,966 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:30:32,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:30:32,966 INFO L82 PathProgramCache]: Analyzing trace with hash -580417043, now seen corresponding path program 1 times [2020-09-24 23:30:32,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:30:32,967 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1484790148] [2020-09-24 23:30:32,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:30:33,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:33,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:34,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:34,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 23:30:34,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:34,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1290 [2020-09-24 23:30:34,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:34,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 23:30:34,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 23:30:34,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 23:30:34,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:34,667 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:30:34,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:30:34,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:34,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:34,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:34,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:30:34,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:34,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-09-24 23:30:34,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:34,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:34,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:34,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:30:34,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:35,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:30:35,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:35,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:35,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:35,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:35,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:35,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:35,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:35,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:35,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:35,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:35,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:35,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:30:35,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:35,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:35,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:35,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:35,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:35,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:35,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:35,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:35,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:35,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:35,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:35,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:30:35,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:35,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:35,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:35,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:35,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:35,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:30:35,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:35,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:35,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:35,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:30:35,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:35,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:30:35,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:35,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:35,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:35,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:35,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:35,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:35,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:35,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:35,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:35,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:35,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:35,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:30:35,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:35,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:35,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:35,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:30:35,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:35,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:30:35,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:35,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:35,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:35,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:30:35,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:35,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 23:30:35,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:35,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:35,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:35,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:30:35,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:35,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:30:35,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:35,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:35,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:35,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:30:35,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:35,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 23:30:35,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:35,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:35,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:35,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:30:35,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:35,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 23:30:35,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:35,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:35,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 23:30:35,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 23:30:35,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:35,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:30:35,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:35,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:35,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:35,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:30:35,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:35,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 23:30:35,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:35,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:35,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:35,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:30:35,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:35,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:30:35,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:35,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:35,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:35,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:30:35,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:35,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:35,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:35,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:35,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:35,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 23:30:35,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:35,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:30:35,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:35,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:35,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:35,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:30:35,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:35,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:30:35,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:35,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:35,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:35,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:30:35,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:35,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 23:30:35,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:35,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:35,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:35,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:35,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:35,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:35,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:35,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:35,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:30:35,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:35,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:35,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 23:30:35,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:35,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:35,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:35,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:35,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:35,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:35,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:35,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:35,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:30:35,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:35,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:35,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:30:35,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1484790148] [2020-09-24 23:30:35,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:30:35,259 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 23:30:35,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725425762] [2020-09-24 23:30:35,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 23:30:35,260 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:30:35,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 23:30:35,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:30:35,261 INFO L87 Difference]: Start difference. First operand 933 states and 1084 transitions. Second operand 9 states.