/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product44.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:58:16,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:58:16,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:58:16,392 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:58:16,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:58:16,394 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:58:16,395 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:58:16,397 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:58:16,399 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:58:16,400 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:58:16,401 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:58:16,402 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:58:16,402 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:58:16,403 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:58:16,405 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:58:16,406 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:58:16,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:58:16,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:58:16,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:58:16,411 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:58:16,412 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:58:16,414 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:58:16,415 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:58:16,416 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:58:16,421 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:58:16,421 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:58:16,421 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:58:16,422 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:58:16,423 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:58:16,424 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:58:16,426 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:58:16,427 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:58:16,427 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:58:16,429 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:58:16,430 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:58:16,430 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:58:16,432 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:58:16,432 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:58:16,432 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:58:16,433 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:58:16,440 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:58:16,441 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 16:58:16,490 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:58:16,490 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:58:16,492 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:58:16,492 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:58:16,492 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:58:16,492 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:58:16,493 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:58:16,494 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:58:16,494 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:58:16,494 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:58:16,495 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:58:16,495 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:58:16,495 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:58:16,496 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:58:16,497 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:58:16,497 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:58:16,497 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:58:16,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:58:16,498 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:58:16,498 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:58:16,498 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:58:16,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:58:16,498 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:58:16,499 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:58:16,499 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:58:16,499 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:58:16,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:58:16,499 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:58:16,500 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:58:16,500 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;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;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;log-additional-information=true; [2020-09-24 16:58:16,985 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:58:17,004 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:58:17,009 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:58:17,011 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:58:17,011 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:58:17,012 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product44.cil.c [2020-09-24 16:58:17,110 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/953cbeddd/13628698edf4435baab5e2776285156f/FLAG5f819fab4 [2020-09-24 16:58:17,747 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:58:17,748 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product44.cil.c [2020-09-24 16:58:17,765 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/953cbeddd/13628698edf4435baab5e2776285156f/FLAG5f819fab4 [2020-09-24 16:58:17,971 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/953cbeddd/13628698edf4435baab5e2776285156f [2020-09-24 16:58:17,988 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:58:17,995 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:58:17,998 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:58:17,998 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:58:18,003 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:58:18,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:58:17" (1/1) ... [2020-09-24 16:58:18,009 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fa7080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:18, skipping insertion in model container [2020-09-24 16:58:18,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:58:17" (1/1) ... [2020-09-24 16:58:18,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:58:18,101 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:58:18,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:58:18,587 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:58:18,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:58:18,724 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:58:18,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:18 WrapperNode [2020-09-24 16:58:18,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:58:18,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:58:18,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:58:18,726 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:58:18,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:18" (1/1) ... [2020-09-24 16:58:18,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:18" (1/1) ... [2020-09-24 16:58:18,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:18" (1/1) ... [2020-09-24 16:58:18,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:18" (1/1) ... [2020-09-24 16:58:18,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:18" (1/1) ... [2020-09-24 16:58:18,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:18" (1/1) ... [2020-09-24 16:58:18,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:18" (1/1) ... [2020-09-24 16:58:18,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:58:18,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:58:18,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:58:18,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:58:18,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:18" (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 16:58:18,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:58:18,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:58:18,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:58:18,919 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:58:18,919 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:58:18,919 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:58:18,919 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:58:18,920 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:58:18,920 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:58:18,921 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 16:58:18,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:58:18,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:58:18,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:58:18,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:58:18,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:58:18,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:58:18,923 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:58:18,923 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 16:58:18,923 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:58:18,923 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 16:58:18,924 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:58:18,924 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:58:18,924 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:58:18,924 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:58:18,925 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:58:18,925 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 16:58:18,926 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 16:58:18,926 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 16:58:18,926 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:58:18,926 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:58:18,926 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:58:18,926 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:58:18,926 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:58:18,927 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:58:18,927 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:58:18,927 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:58:18,927 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:58:18,927 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:58:18,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:58:18,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 16:58:18,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 16:58:18,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 16:58:18,928 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:58:18,928 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:58:18,929 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:58:18,929 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:58:18,929 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:58:18,929 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:58:18,929 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:58:18,929 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:58:18,929 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:58:18,930 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 16:58:18,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:58:18,930 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:58:18,930 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:58:18,931 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:58:18,931 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:58:18,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:58:18,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:58:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:58:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:58:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:58:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:58:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:58:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:58:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:58:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:58:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:58:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:58:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:58:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:58:18,934 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:58:18,935 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:58:18,935 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:58:18,936 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 16:58:18,936 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 16:58:18,936 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 16:58:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 16:58:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:58:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 16:58:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 16:58:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 16:58:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:58:18,938 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:58:18,939 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:58:18,939 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:58:18,939 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:58:18,939 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:58:18,939 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:58:18,939 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:58:18,940 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:58:18,940 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 16:58:18,940 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:58:18,940 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:58:18,940 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:58:18,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:58:18,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:58:18,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:58:20,230 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:58:20,231 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:58:20,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:58:20 BoogieIcfgContainer [2020-09-24 16:58:20,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:58:20,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:58:20,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:58:20,244 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:58:20,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:58:17" (1/3) ... [2020-09-24 16:58:20,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d29a84e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:58:20, skipping insertion in model container [2020-09-24 16:58:20,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:58:18" (2/3) ... [2020-09-24 16:58:20,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d29a84e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:58:20, skipping insertion in model container [2020-09-24 16:58:20,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:58:20" (3/3) ... [2020-09-24 16:58:20,248 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product44.cil.c [2020-09-24 16:58:20,262 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:58:20,273 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:58:20,296 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:58:20,332 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:58:20,332 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:58:20,333 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:58:20,333 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:58:20,333 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:58:20,333 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:58:20,333 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:58:20,333 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:58:20,365 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states. [2020-09-24 16:58:20,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 16:58:20,384 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:58:20,386 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-24 16:58:20,386 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:58:20,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:58:20,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1132386032, now seen corresponding path program 1 times [2020-09-24 16:58:20,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:58:20,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1791982282] [2020-09-24 16:58:20,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:58:20,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:20,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:21,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:22,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:22,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:25,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:34,113 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:34,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 16:58:34,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 16:58:34,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13368 [2020-09-24 16:58:34,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:34,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 16:58:34,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 16:58:34,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-24 16:58:34,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 13 [2020-09-24 16:58:34,791 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:58:34,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:58:34,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:34,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:35,265 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:35,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:58:35,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:35,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 412 [2020-09-24 16:58:35,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:35,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:35,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:35,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 16:58:35,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:35,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:58:35,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:35,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:35,413 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:35,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:35,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:35,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 16:58:35,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:35,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:35,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:35,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:58:35,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:35,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:58:35,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:35,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:35,428 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:35,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:35,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:35,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:58:35,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:35,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:35,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:35,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:58:35,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:58:35,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:58:35,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:35,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:35,448 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:35,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:35,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:35,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 16:58:35,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:35,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:35,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:35,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:58:35,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:35,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:58:35,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:35,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:35,463 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:35,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:35,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:35,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:58:35,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:35,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:35,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:35,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:58:35,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:35,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:58:35,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:35,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:35,495 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:35,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:58:35,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:35,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:58:35,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:35,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:35,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:35,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 16:58:35,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:35,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 16:58:35,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:35,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:35,523 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:35,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 16:58:35,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:35,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 16:58:35,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:35,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:35,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:35,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 16:58:35,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:35,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:58:35,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:35,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:35,537 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:35,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:35,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:35,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:35,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:35,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:35,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:35,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:35,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:35,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 16:58:35,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:35,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:35,558 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:35,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:35,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:35,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 16:58:35,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:35,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:58:35,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:35,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:58:35,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:35,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 16:58:35,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:35,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:35,588 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:35,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:35,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:35,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 16:58:35,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:35,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:58:35,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:35,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:58:35,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:35,731 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 16:58:35,732 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1791982282] [2020-09-24 16:58:35,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:58:35,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 16:58:35,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75475289] [2020-09-24 16:58:35,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:58:35,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:58:35,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:58:35,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:58:35,790 INFO L87 Difference]: Start difference. First operand 326 states. Second operand 9 states. [2020-09-24 16:58:36,896 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:58:37,850 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:58:38,172 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 16:58:39,684 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:58:40,007 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 16:58:40,355 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:58:40,805 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:58:41,135 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 16:58:41,467 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:58:42,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:58:42,101 INFO L93 Difference]: Finished difference Result 621 states and 748 transitions. [2020-09-24 16:58:42,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 16:58:42,103 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-24 16:58:42,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:58:42,125 INFO L225 Difference]: With dead ends: 621 [2020-09-24 16:58:42,125 INFO L226 Difference]: Without dead ends: 419 [2020-09-24 16:58:42,132 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 21 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 16:58:42,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2020-09-24 16:58:42,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 368. [2020-09-24 16:58:42,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 368 states. [2020-09-24 16:58:42,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 410 transitions. [2020-09-24 16:58:42,268 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 410 transitions. Word has length 160 [2020-09-24 16:58:42,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:58:42,269 INFO L479 AbstractCegarLoop]: Abstraction has 368 states and 410 transitions. [2020-09-24 16:58:42,269 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 16:58:42,269 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 410 transitions. [2020-09-24 16:58:42,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-09-24 16:58:42,284 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:58:42,285 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:42,285 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:58:42,285 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:58:42,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:58:42,286 INFO L82 PathProgramCache]: Analyzing trace with hash -1601774306, now seen corresponding path program 1 times [2020-09-24 16:58:42,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:58:42,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [734450298] [2020-09-24 16:58:42,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:58:42,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:42,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:42,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:44,688 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:44,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 267 [2020-09-24 16:58:44,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 16:58:44,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2333 [2020-09-24 16:58:44,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:44,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:58:44,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 188 [2020-09-24 16:58:44,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:58:44,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:45,030 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:58:45,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:58:45,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:45,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:45,138 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:45,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:58:45,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:45,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-24 16:58:45,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:45,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:45,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:45,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:45,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:45,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:58:45,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:45,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:45,177 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:45,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:45,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:45,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:45,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:45,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:45,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:45,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:45,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:45,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:58:45,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:45,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:45,183 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:45,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:45,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:45,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:45,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:45,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:45,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:45,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:45,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:45,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:58:45,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:45,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:45,191 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:45,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:45,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:45,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:58:45,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:45,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:45,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:45,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:45,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:45,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:58:45,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:45,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:45,198 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:45,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:45,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:45,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:45,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:45,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:45,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:45,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:45,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 16:58:45,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:58:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:45,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:45,217 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:45,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:58:45,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:45,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:45,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:45,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:45,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:45,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:45,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:58:45,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 16:58:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:45,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:45,225 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:45,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 16:58:45,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:45,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:45,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:45,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:45,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:45,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:45,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:45,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:58:45,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:45,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:45,237 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:45,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:45,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:45,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:58:45,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:45,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:45,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:45,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:45,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:45,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 16:58:45,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:45,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:45,356 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:45,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 16:58:45,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:45,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-24 16:58:45,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:45,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:58:45,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 16:58:45,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:58:45,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:45,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:58:45,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:45,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:45,434 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:45,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 16:58:45,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:45,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 16:58:45,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:45,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:58:45,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:45,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 16:58:45,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:45,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 16:58:45,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:45,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:45,490 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:45,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:58:45,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:45,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:58:45,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:45,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:45,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:45,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:45,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:45,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 16:58:45,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:45,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:45,512 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:45,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 16:58:45,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:45,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 16:58:45,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:45,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:45,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 16:58:45,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:45,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:45,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:58:45,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:45,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:45,523 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:45,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 16:58:45,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:45,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:45,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:45,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:45,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:45,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:45,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:45,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:58:45,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:45,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:45,534 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:45,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:45,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:45,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:58:45,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:45,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:45,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:45,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:45,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:45,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 16:58:45,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:45,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:45,542 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:45,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:58:45,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:45,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:45,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:45,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:45,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:45,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:45,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:45,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-09-24 16:58:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:45,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:45,555 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:45,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:45,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:45,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:45,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:45,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:45,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:58:45,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:45,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:45,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-09-24 16:58:45,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:45,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:45,564 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:45,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:45,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:45,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:45,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:45,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:45,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:58:45,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:45,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:45,631 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 16:58:45,631 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [734450298] [2020-09-24 16:58:45,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:58:45,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 16:58:45,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219593184] [2020-09-24 16:58:45,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 16:58:45,638 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:58:45,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 16:58:45,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 16:58:45,640 INFO L87 Difference]: Start difference. First operand 368 states and 410 transitions. Second operand 10 states. [2020-09-24 16:58:47,227 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:58:47,533 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:58:47,844 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 16:58:48,174 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:58:48,507 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:58:48,800 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:58:49,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:58:49,829 INFO L93 Difference]: Finished difference Result 718 states and 870 transitions. [2020-09-24 16:58:49,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 16:58:49,829 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 216 [2020-09-24 16:58:49,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:58:49,848 INFO L225 Difference]: With dead ends: 718 [2020-09-24 16:58:49,848 INFO L226 Difference]: Without dead ends: 465 [2020-09-24 16:58:49,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 16:58:49,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2020-09-24 16:58:49,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 382. [2020-09-24 16:58:49,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2020-09-24 16:58:49,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 427 transitions. [2020-09-24 16:58:49,937 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 427 transitions. Word has length 216 [2020-09-24 16:58:49,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:58:49,938 INFO L479 AbstractCegarLoop]: Abstraction has 382 states and 427 transitions. [2020-09-24 16:58:49,938 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 16:58:49,938 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 427 transitions. [2020-09-24 16:58:49,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-09-24 16:58:49,942 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:58:49,942 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:49,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:58:49,942 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:58:49,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:58:49,943 INFO L82 PathProgramCache]: Analyzing trace with hash -161974914, now seen corresponding path program 1 times [2020-09-24 16:58:49,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:58:49,943 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [923599065] [2020-09-24 16:58:49,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:58:49,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:50,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:50,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:51,669 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:51,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 267 [2020-09-24 16:58:51,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 16:58:51,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1672 [2020-09-24 16:58:51,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:51,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:58:51,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-09-24 16:58:51,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:58:51,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:51,988 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:58:51,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:58:51,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:52,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:52,089 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:52,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:58:52,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:52,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 16:58:52,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:52,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:52,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:52,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:52,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:52,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:58:52,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:52,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:52,123 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:52,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:52,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:52,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:58:52,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:52,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:52,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:52,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:52,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:52,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:58:52,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:52,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:52,128 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:52,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:52,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:52,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:58:52,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:52,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:52,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:52,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:52,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:52,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:58:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:52,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:52,135 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:52,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:52,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:52,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:58:52,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:52,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:52,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:52,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:52,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:52,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:58:52,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:52,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:52,141 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:52,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:58:52,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:52,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:58:52,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:52,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:52,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:52,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:52,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:52,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:58:52,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:52,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:52,157 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:52,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:58:52,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:52,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:52,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:52,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:52,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:52,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:52,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:52,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 16:58:52,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:52,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:52,164 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:52,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 16:58:52,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:52,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:52,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:52,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:52,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:52,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:52,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:52,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:58:52,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:52,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:52,170 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:52,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:52,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:52,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:58:52,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:52,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:52,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:52,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:52,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:52,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 16:58:52,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:52,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:52,261 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:52,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 16:58:52,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:52,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-24 16:58:52,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:52,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:58:52,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 16:58:52,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:58:52,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:52,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:58:52,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:52,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:52,305 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:52,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 16:58:52,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:52,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 16:58:52,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:52,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:58:52,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 16:58:52,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 16:58:52,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:52,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 16:58:52,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:52,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:52,340 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:52,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:58:52,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:52,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 16:58:52,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:52,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 16:58:52,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:52,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:58:52,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:52,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 16:58:52,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:52,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:52,394 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:52,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 16:58:52,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:52,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 16:58:52,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:52,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:52,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 16:58:52,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:52,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:52,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:58:52,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:52,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:52,404 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:52,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 16:58:52,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:52,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:52,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:52,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:52,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:52,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:52,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:52,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:58:52,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:52,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:52,413 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:52,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:52,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:52,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:52,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:52,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:52,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:52,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:52,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:52,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 16:58:52,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:52,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:52,422 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:52,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:58:52,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:52,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:52,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:52,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:52,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:58:52,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:52,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:58:52,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-09-24 16:58:52,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:52,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:52,432 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:52,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:52,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:52,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:52,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:52,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:52,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:58:52,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:52,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:52,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-09-24 16:58:52,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:52,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:52,440 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:58:52,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:58:52,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:58:52,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:58:52,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:58:52,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:58:52,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:58:52,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:58:52,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:58:52,509 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 16:58:52,509 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [923599065] [2020-09-24 16:58:52,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:58:52,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 16:58:52,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275082836] [2020-09-24 16:58:52,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:58:52,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:58:52,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:58:52,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:58:52,512 INFO L87 Difference]: Start difference. First operand 382 states and 427 transitions. Second operand 9 states. [2020-09-24 16:58:54,111 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:58:54,494 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 16:58:54,808 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:58:55,130 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:58:55,423 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:58:56,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:58:56,385 INFO L93 Difference]: Finished difference Result 741 states and 896 transitions. [2020-09-24 16:58:56,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 16:58:56,385 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 216 [2020-09-24 16:58:56,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:58:56,390 INFO L225 Difference]: With dead ends: 741 [2020-09-24 16:58:56,390 INFO L226 Difference]: Without dead ends: 474 [2020-09-24 16:58:56,391 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-24 16:58:56,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2020-09-24 16:58:56,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 388. [2020-09-24 16:58:56,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 388 states. [2020-09-24 16:58:56,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 433 transitions. [2020-09-24 16:58:56,442 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 433 transitions. Word has length 216 [2020-09-24 16:58:56,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:58:56,443 INFO L479 AbstractCegarLoop]: Abstraction has 388 states and 433 transitions. [2020-09-24 16:58:56,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 16:58:56,443 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 433 transitions. [2020-09-24 16:58:56,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-09-24 16:58:56,447 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:58:56,447 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:56,447 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 16:58:56,448 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:58:56,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:58:56,448 INFO L82 PathProgramCache]: Analyzing trace with hash -782446661, now seen corresponding path program 1 times [2020-09-24 16:58:56,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:58:56,449 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [927684242] [2020-09-24 16:58:56,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:58:56,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:58:56,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:58:56,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:00,132 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:00,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 267 [2020-09-24 16:59:00,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 16:59:00,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3632 [2020-09-24 16:59:00,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:00,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 16:59:00,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 16:59:00,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-24 16:59:00,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:00,443 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:59:00,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:00,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:00,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:00,706 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:00,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 16:59:00,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:00,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-09-24 16:59:00,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:00,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:00,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:00,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 16:59:00,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:00,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 16:59:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:00,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:00,755 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:00,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:00,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:00,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:59:00,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:00,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:00,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:00,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:59:00,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:00,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 16:59:00,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:00,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:00,762 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:00,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:00,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:00,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:00,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:00,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:00,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:00,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:59:00,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:00,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 16:59:00,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:00,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:00,776 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:00,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:00,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:00,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 16:59:00,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:00,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:00,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:00,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:59:00,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:00,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 16:59:00,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:00,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:00,785 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:00,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:59:00,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:00,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:00,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:00,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:00,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:00,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:59:00,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:00,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 16:59:00,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:00,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:00,800 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:00,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:00,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:00,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:00,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:00,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:00,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:00,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 16:59:00,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:00,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 16:59:00,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:00,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:00,814 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:00,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 16:59:00,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:00,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:59:00,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:00,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:00,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:00,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 16:59:00,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:00,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:59:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:00,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:00,820 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:00,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:00,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:00,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:00,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:00,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:00,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:00,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:00,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:00,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 16:59:00,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:00,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:00,876 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:00,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 16:59:00,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:00,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 16:59:00,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:00,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:00,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 16:59:00,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-24 16:59:00,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:00,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:59:00,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:00,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:00,909 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:00,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 16:59:00,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:00,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 16:59:00,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:00,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:00,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:00,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:59:00,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:00,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 16:59:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:00,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:00,928 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:00,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:59:00,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:00,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:00,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:00,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:00,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:00,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 16:59:00,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:00,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 16:59:00,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:00,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:00,964 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:00,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 16:59:00,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:00,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 16:59:00,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:00,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:59:00,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:00,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 16:59:00,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:00,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:59:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:00,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:00,973 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:00,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 16:59:00,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:00,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:00,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:00,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:00,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:00,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:00,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:00,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 16:59:00,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:00,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:00,980 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:00,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:00,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:00,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:00,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:00,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:00,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:00,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:00,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:00,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 16:59:00,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:00,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:00,990 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:00,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:59:00,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:00,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:59:00,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:00,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:00,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:59:00,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:00,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:59:00,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-09-24 16:59:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:01,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:01,002 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:01,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:01,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:01,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:01,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:01,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:01,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:59:01,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:01,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:01,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-09-24 16:59:01,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:59:01,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:59:01,010 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:59:01,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:59:01,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:59:01,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:59:01,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:59:01,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:59:01,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:59:01,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:59:01,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:59:01,121 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 16:59:01,122 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [927684242] [2020-09-24 16:59:01,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:59:01,122 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 16:59:01,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633913362] [2020-09-24 16:59:01,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 16:59:01,123 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:59:01,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 16:59:01,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 16:59:01,124 INFO L87 Difference]: Start difference. First operand 388 states and 433 transitions. Second operand 7 states. [2020-09-24 16:59:01,665 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:59:02,390 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 189