/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:29:55,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:29:55,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:29:55,397 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:29:55,397 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:29:55,399 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:29:55,400 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:29:55,402 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:29:55,404 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:29:55,405 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:29:55,406 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:29:55,407 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:29:55,407 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:29:55,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:29:55,410 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:29:55,411 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:29:55,412 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:29:55,413 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:29:55,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:29:55,417 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:29:55,419 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:29:55,420 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:29:55,421 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:29:55,423 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:29:55,425 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:29:55,426 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:29:55,426 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:29:55,427 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:29:55,427 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:29:55,429 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:29:55,429 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:29:55,430 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:29:55,431 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:29:55,432 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:29:55,433 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:29:55,433 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:29:55,434 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:29:55,434 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:29:55,434 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:29:55,435 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:29:55,436 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:29:55,437 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 23:29:55,465 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:29:55,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:29:55,469 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:29:55,469 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:29:55,469 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:29:55,469 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:29:55,470 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:29:55,470 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:29:55,470 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:29:55,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:29:55,470 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:29:55,471 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:29:55,471 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:29:55,471 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:29:55,472 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:29:55,472 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:29:55,472 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:29:55,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:29:55,472 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:29:55,473 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:29:55,473 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:29:55,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:29:55,473 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:29:55,474 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:29:55,474 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:29:55,474 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:29:55,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:29:55,474 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:29:55,475 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:29:55,475 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; [2020-09-24 23:29:55,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:29:55,962 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:29:55,966 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:29:55,968 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:29:55,970 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:29:55,971 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product40.cil.c [2020-09-24 23:29:56,043 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e2f2f284b/2e51173f57994227a6794e9fb6d1b9cf/FLAG9ec0e42d3 [2020-09-24 23:29:56,656 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:29:56,657 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product40.cil.c [2020-09-24 23:29:56,672 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e2f2f284b/2e51173f57994227a6794e9fb6d1b9cf/FLAG9ec0e42d3 [2020-09-24 23:29:56,893 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e2f2f284b/2e51173f57994227a6794e9fb6d1b9cf [2020-09-24 23:29:56,907 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:29:56,912 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:29:56,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:29:56,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:29:56,918 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:29:56,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:29:56" (1/1) ... [2020-09-24 23:29:56,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11967da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:29:56, skipping insertion in model container [2020-09-24 23:29:56,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:29:56" (1/1) ... [2020-09-24 23:29:56,935 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:29:56,995 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:29:57,457 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:29:57,478 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:29:57,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:29:57,597 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:29:57,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:29:57 WrapperNode [2020-09-24 23:29:57,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:29:57,599 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:29:57,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:29:57,599 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:29:57,613 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:29:57" (1/1) ... [2020-09-24 23:29:57,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:29:57" (1/1) ... [2020-09-24 23:29:57,634 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:29:57" (1/1) ... [2020-09-24 23:29:57,634 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:29:57" (1/1) ... [2020-09-24 23:29:57,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:29:57" (1/1) ... [2020-09-24 23:29:57,685 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:29:57" (1/1) ... [2020-09-24 23:29:57,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:29:57" (1/1) ... [2020-09-24 23:29:57,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:29:57,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:29:57,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:29:57,701 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:29:57,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:29:57" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:29:57,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:29:57,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:29:57,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 23:29:57,778 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 23:29:57,778 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 23:29:57,779 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 23:29:57,779 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 23:29:57,779 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 23:29:57,779 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 23:29:57,779 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 23:29:57,780 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 23:29:57,780 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 23:29:57,780 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 23:29:57,780 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 23:29:57,780 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 23:29:57,781 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 23:29:57,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 23:29:57,781 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 23:29:57,781 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 23:29:57,781 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 23:29:57,787 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 23:29:57,787 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:29:57,788 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 23:29:57,788 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 23:29:57,788 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 23:29:57,789 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 23:29:57,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 23:29:57,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 23:29:57,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 23:29:57,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 23:29:57,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 23:29:57,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 23:29:57,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 23:29:57,790 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 23:29:57,790 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 23:29:57,790 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 23:29:57,790 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 23:29:57,792 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 23:29:57,792 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 23:29:57,792 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 23:29:57,793 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:29:57,793 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:29:57,793 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 23:29:57,793 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 23:29:57,793 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 23:29:57,793 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 23:29:57,794 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 23:29:57,794 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 23:29:57,794 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 23:29:57,794 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 23:29:57,795 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 23:29:57,795 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 23:29:57,795 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 23:29:57,795 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 23:29:57,795 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 23:29:57,796 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 23:29:57,796 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 23:29:57,796 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 23:29:57,796 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 23:29:57,796 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 23:29:57,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:29:57,797 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 23:29:57,797 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 23:29:57,797 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 23:29:57,797 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 23:29:57,797 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 23:29:57,797 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 23:29:57,798 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 23:29:57,798 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 23:29:57,798 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 23:29:57,799 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 23:29:57,799 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 23:29:57,801 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:29:57,801 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 23:29:57,801 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 23:29:57,801 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:29:57,802 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:29:57,802 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 23:29:57,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:29:57,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:29:57,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:29:57,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:29:57,803 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 23:29:57,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:29:57,803 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 23:29:57,803 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 23:29:57,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:29:57,804 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 23:29:57,805 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 23:29:57,805 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 23:29:57,805 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 23:29:57,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:29:57,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:29:57,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:29:58,953 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:29:58,954 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 23:29:58,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:29:58 BoogieIcfgContainer [2020-09-24 23:29:58,961 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:29:58,962 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:29:58,962 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:29:58,968 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:29:58,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:29:56" (1/3) ... [2020-09-24 23:29:58,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e41d092 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:29:58, skipping insertion in model container [2020-09-24 23:29:58,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:29:57" (2/3) ... [2020-09-24 23:29:58,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e41d092 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:29:58, skipping insertion in model container [2020-09-24 23:29:58,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:29:58" (3/3) ... [2020-09-24 23:29:58,973 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product40.cil.c [2020-09-24 23:29:58,984 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:29:58,998 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:29:59,021 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:29:59,056 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:29:59,056 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:29:59,057 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:29:59,057 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:29:59,057 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:29:59,057 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:29:59,057 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:29:59,057 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:29:59,083 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states. [2020-09-24 23:29:59,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 23:29:59,101 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:29:59,103 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:29:59,103 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:29:59,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:29:59,110 INFO L82 PathProgramCache]: Analyzing trace with hash -483838742, now seen corresponding path program 1 times [2020-09-24 23:29:59,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:29:59,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [757087729] [2020-09-24 23:29:59,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:29:59,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:29:59,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:29:59,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:01,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:02,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:03,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:04,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:04,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 23:30:04,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:30:04,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-24 23:30:04,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:04,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:30:04,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 23:30:04,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-24 23:30:04,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 23:30:05,005 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:30:05,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:30:05,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:05,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:05,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:05,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:30:05,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:05,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 327 [2020-09-24 23:30:05,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:05,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:05,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:05,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 23:30:05,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:05,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:30:05,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:05,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:05,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:05,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:05,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:05,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:30:05,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:05,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:05,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:05,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:05,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:05,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:30:05,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:05,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:05,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:05,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:05,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:05,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:30:05,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:05,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:05,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:05,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:05,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:05,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:30:05,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:05,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:05,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:05,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:05,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:05,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 23:30:05,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:05,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:05,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:05,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:30:05,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:05,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:30:05,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:05,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:05,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:05,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:05,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:05,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:30:05,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:05,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:05,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:05,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:05,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:05,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:30:05,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:05,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:05,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:05,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:05,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:05,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:30:05,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:05,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:05,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:05,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:30:05,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:05,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 23:30:05,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:05,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:05,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:05,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:05,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:05,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 23:30:05,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:05,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:30:05,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:05,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:30:05,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:05,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:30:05,686 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [757087729] [2020-09-24 23:30:05,689 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:30:05,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 23:30:05,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029448510] [2020-09-24 23:30:05,699 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 23:30:05,700 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:30:05,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 23:30:05,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 23:30:05,723 INFO L87 Difference]: Start difference. First operand 311 states. Second operand 8 states. [2020-09-24 23:30:06,386 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:30:07,663 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:30:07,937 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:30:08,261 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:30:08,633 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:30:09,013 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:30:09,702 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:30:10,003 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:30:10,387 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:30:11,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:30:11,638 INFO L93 Difference]: Finished difference Result 607 states and 763 transitions. [2020-09-24 23:30:11,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 23:30:11,640 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 23:30:11,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:30:11,686 INFO L225 Difference]: With dead ends: 607 [2020-09-24 23:30:11,686 INFO L226 Difference]: Without dead ends: 407 [2020-09-24 23:30:11,702 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 23:30:11,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2020-09-24 23:30:11,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 362. [2020-09-24 23:30:11,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2020-09-24 23:30:11,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 417 transitions. [2020-09-24 23:30:11,895 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 417 transitions. Word has length 142 [2020-09-24 23:30:11,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:30:11,896 INFO L479 AbstractCegarLoop]: Abstraction has 362 states and 417 transitions. [2020-09-24 23:30:11,897 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 23:30:11,897 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 417 transitions. [2020-09-24 23:30:11,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 23:30:11,904 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:30:11,904 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:30:11,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:30:11,905 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:30:11,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:30:11,905 INFO L82 PathProgramCache]: Analyzing trace with hash 577972371, now seen corresponding path program 1 times [2020-09-24 23:30:11,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:30:11,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [342082810] [2020-09-24 23:30:11,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:30:11,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:12,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:12,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:16,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:16,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 23:30:16,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:30:16,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-24 23:30:16,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:16,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 23:30:16,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 23:30:16,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-09-24 23:30:16,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:17,279 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:30:17,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:30:17,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:17,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:17,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:17,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:30:17,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:17,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-09-24 23:30:17,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:17,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:17,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:17,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 23:30:17,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:17,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:30:17,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:17,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:17,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:17,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:17,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:17,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:17,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:17,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:17,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:17,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:17,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:17,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:30:17,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:17,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:17,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:17,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:17,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:17,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:17,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:17,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:17,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:17,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:17,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:17,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:30:17,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:17,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:17,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:17,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:17,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:17,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:30:17,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:17,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:17,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:17,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:30:17,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:17,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:30:17,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:17,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:17,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:17,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:17,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:17,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:17,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:17,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:17,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:17,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:17,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:17,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 23:30:17,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:17,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:17,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:17,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:30:17,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:17,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:30:17,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:17,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:17,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:17,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:30:17,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:17,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 23:30:17,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:17,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:17,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:17,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:17,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 23:30:17,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:30:17,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-24 23:30:17,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:17,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:17,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:17,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-24 23:30:17,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:17,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:30:17,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:17,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:17,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:17,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:17,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:30:17,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:30:17,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-24 23:30:17,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:17,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:17,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:17,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:17,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 23:30:17,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:30:17,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:17,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:17,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:17,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:30:17,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:17,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:30:17,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:17,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:17,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:17,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:17,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:17,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:30:17,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:17,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:17,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:17,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:30:17,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:17,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:30:17,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:17,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:17,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:17,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:17,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:17,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:30:17,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:17,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:17,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:17,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:30:17,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:17,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:17,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:17,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:17,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:17,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:17,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:17,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 23:30:17,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:17,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:17,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:17,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:17,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:17,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:30:17,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:17,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:30:17,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:17,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:30:17,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:17,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 23:30:17,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:17,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:17,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:17,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:17,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:17,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:17,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:17,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:17,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:30:17,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:17,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:18,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:30:18,011 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [342082810] [2020-09-24 23:30:18,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:30:18,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 23:30:18,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055608607] [2020-09-24 23:30:18,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 23:30:18,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:30:18,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 23:30:18,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:30:18,017 INFO L87 Difference]: Start difference. First operand 362 states and 417 transitions. Second operand 10 states. [2020-09-24 23:30:18,585 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:30:19,445 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:30:19,795 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:30:20,152 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:30:20,546 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:30:20,849 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:30:21,483 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:30:21,794 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:30:22,179 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:30:24,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:30:24,808 INFO L93 Difference]: Finished difference Result 1133 states and 1525 transitions. [2020-09-24 23:30:24,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 23:30:24,810 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2020-09-24 23:30:24,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:30:24,821 INFO L225 Difference]: With dead ends: 1133 [2020-09-24 23:30:24,821 INFO L226 Difference]: Without dead ends: 832 [2020-09-24 23:30:24,825 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-24 23:30:24,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2020-09-24 23:30:24,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 573. [2020-09-24 23:30:24,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 573 states. [2020-09-24 23:30:24,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 667 transitions. [2020-09-24 23:30:24,932 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 667 transitions. Word has length 194 [2020-09-24 23:30:24,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:30:24,933 INFO L479 AbstractCegarLoop]: Abstraction has 573 states and 667 transitions. [2020-09-24 23:30:24,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 23:30:24,934 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 667 transitions. [2020-09-24 23:30:24,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-24 23:30:24,937 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:30:24,937 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:30:24,938 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:30:24,938 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:30:24,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:30:24,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1366553455, now seen corresponding path program 1 times [2020-09-24 23:30:24,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:30:24,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [571047591] [2020-09-24 23:30:24,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:30:24,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:25,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:25,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:25,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-09-24 23:30:25,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:25,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 786 [2020-09-24 23:30:25,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:25,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:30:25,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 190 [2020-09-24 23:30:25,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:30:25,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:26,132 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:30:26,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:30:26,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:26,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:26,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:26,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:30:26,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:26,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-24 23:30:26,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:26,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:26,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:26,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:26,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:26,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:30:26,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:26,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:26,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:26,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:26,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:26,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:26,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:26,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:26,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:26,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:26,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 23:30:26,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:30:26,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:26,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:26,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:26,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:26,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:26,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:26,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:26,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:26,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:26,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:26,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:26,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:30:26,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:26,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:26,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:26,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:26,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:26,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:30:26,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:26,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:26,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:26,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:26,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:26,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:30:26,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:26,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:26,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:26,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:26,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:26,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:26,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:26,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:26,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:26,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:26,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:26,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:30:26,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:26,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:26,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:26,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:30:26,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:26,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:30:26,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:26,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:26,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:26,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:26,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:26,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 23:30:26,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:26,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:26,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:26,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:30:26,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:26,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:30:26,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:26,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:26,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:26,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:26,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:26,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 23:30:26,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:26,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:26,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:26,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 23:30:26,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:26,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-24 23:30:26,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:26,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:30:26,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 23:30:26,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:30:26,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:26,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:30:26,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:26,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:26,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:26,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:30:26,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:26,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-24 23:30:26,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:26,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:30:26,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 23:30:26,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:30:26,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:26,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:30:26,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:26,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:26,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:26,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:30:26,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:26,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 23:30:26,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:26,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:30:26,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:26,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 23:30:26,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:26,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:30:26,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:26,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:26,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:26,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:30:26,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:26,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:30:26,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:26,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:26,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:26,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:26,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:26,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:30:26,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:26,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:26,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:26,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:30:26,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:26,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:26,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:26,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:26,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 23:30:26,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:26,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:26,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 23:30:26,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:26,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:26,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:26,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:26,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:26,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:26,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:26,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:26,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:30:26,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:26,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:26,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-24 23:30:26,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:26,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:26,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:26,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:26,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:26,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:26,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:26,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:26,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:30:26,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:26,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:26,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:30:26,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [571047591] [2020-09-24 23:30:26,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:30:26,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 23:30:26,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29958758] [2020-09-24 23:30:26,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 23:30:26,742 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:30:26,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 23:30:26,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 23:30:26,743 INFO L87 Difference]: Start difference. First operand 573 states and 667 transitions. Second operand 11 states. [2020-09-24 23:30:28,330 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:30:28,622 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:30:28,947 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:30:29,274 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:30:29,632 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:30:29,909 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:30:31,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:30:31,482 INFO L93 Difference]: Finished difference Result 1445 states and 1889 transitions. [2020-09-24 23:30:31,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 23:30:31,482 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 199 [2020-09-24 23:30:31,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:30:31,496 INFO L225 Difference]: With dead ends: 1445 [2020-09-24 23:30:31,496 INFO L226 Difference]: Without dead ends: 982 [2020-09-24 23:30:31,499 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-09-24 23:30:31,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2020-09-24 23:30:31,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 589. [2020-09-24 23:30:31,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2020-09-24 23:30:31,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 683 transitions. [2020-09-24 23:30:31,628 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 683 transitions. Word has length 199 [2020-09-24 23:30:31,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:30:31,630 INFO L479 AbstractCegarLoop]: Abstraction has 589 states and 683 transitions. [2020-09-24 23:30:31,630 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 23:30:31,630 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 683 transitions. [2020-09-24 23:30:31,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-24 23:30:31,633 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:30:31,633 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:30:31,634 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:30:31,634 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:30:31,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:30:31,634 INFO L82 PathProgramCache]: Analyzing trace with hash 392683279, now seen corresponding path program 1 times [2020-09-24 23:30:31,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:30:31,635 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [988490871] [2020-09-24 23:30:31,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:30:31,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:31,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:32,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:32,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-09-24 23:30:32,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:32,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 688 [2020-09-24 23:30:32,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:32,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:30:32,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 182 [2020-09-24 23:30:32,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:30:32,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:32,714 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:30:32,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:30:32,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:32,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:32,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:32,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:30:32,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:32,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-24 23:30:32,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:32,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:32,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:32,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:32,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:32,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:30:32,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:32,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:32,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:32,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:32,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:32,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:30:32,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:32,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:32,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:32,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:32,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:32,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:30:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:32,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:32,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:32,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:32,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:32,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:32,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:32,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:32,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:32,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:32,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:32,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:30:32,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:32,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:32,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:32,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:32,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:32,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:32,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:32,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:32,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:32,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:32,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:32,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:30:32,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:32,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:32,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:32,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:32,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:32,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:32,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:32,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:32,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:32,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:32,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:32,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:30:32,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:32,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:32,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:32,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:30:32,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:32,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:30:32,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:32,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:32,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:32,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:32,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:32,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 23:30:32,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:32,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:32,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:32,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:30:32,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:32,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:30:32,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:32,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:32,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:32,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:32,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:32,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 23:30:32,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:32,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:33,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:33,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 23:30:33,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:33,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 23:30:33,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:33,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:30:33,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 23:30:33,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:30:33,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:33,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:30:33,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:33,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:33,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:33,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:30:33,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:33,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-24 23:30:33,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:33,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:30:33,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 23:30:33,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:30:33,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:33,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:30:33,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:33,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:33,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:33,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:30:33,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:33,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 23:30:33,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:33,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:30:33,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:30:33,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:30:33,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:33,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:30:33,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:33,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:33,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:33,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:30:33,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:33,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:30:33,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:33,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:30:33,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:33,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:30:33,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:33,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:30:33,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:33,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:33,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:33,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:30:33,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:33,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:33,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:33,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:33,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 23:30:33,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:33,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:33,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 23:30:33,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:33,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:33,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:33,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:33,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:33,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:33,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:33,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:33,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:30:33,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:33,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:33,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-24 23:30:33,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:33,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:33,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:33,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:33,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:33,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:33,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:33,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:33,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:30:33,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:33,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:33,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:30:33,245 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [988490871] [2020-09-24 23:30:33,245 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:30:33,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 23:30:33,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009658512] [2020-09-24 23:30:33,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 23:30:33,247 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:30:33,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 23:30:33,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:30:33,249 INFO L87 Difference]: Start difference. First operand 589 states and 683 transitions. Second operand 10 states. [2020-09-24 23:30:34,966 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:30:35,188 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:30:35,478 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:30:35,848 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:30:36,139 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:30:37,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:30:37,606 INFO L93 Difference]: Finished difference Result 1483 states and 1976 transitions. [2020-09-24 23:30:37,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 23:30:37,615 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 199 [2020-09-24 23:30:37,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:30:37,622 INFO L225 Difference]: With dead ends: 1483 [2020-09-24 23:30:37,622 INFO L226 Difference]: Without dead ends: 1004 [2020-09-24 23:30:37,624 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-24 23:30:37,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2020-09-24 23:30:37,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 601. [2020-09-24 23:30:37,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2020-09-24 23:30:37,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 695 transitions. [2020-09-24 23:30:37,703 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 695 transitions. Word has length 199 [2020-09-24 23:30:37,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:30:37,704 INFO L479 AbstractCegarLoop]: Abstraction has 601 states and 695 transitions. [2020-09-24 23:30:37,704 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 23:30:37,704 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 695 transitions. [2020-09-24 23:30:37,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-09-24 23:30:37,708 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:30:37,709 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:30:37,709 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:30:37,709 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:30:37,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:30:37,710 INFO L82 PathProgramCache]: Analyzing trace with hash -384148779, now seen corresponding path program 1 times [2020-09-24 23:30:37,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:30:37,710 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [853756975] [2020-09-24 23:30:37,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:30:37,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:37,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:37,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:38,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:38,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:38,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:42,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:42,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-09-24 23:30:42,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:30:42,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-24 23:30:42,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:42,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 23:30:42,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 23:30:42,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-09-24 23:30:42,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:43,062 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:30:43,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:30:43,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:43,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:43,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:43,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:30:43,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:43,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-09-24 23:30:43,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:43,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:43,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:43,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 23:30:43,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:43,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:30:43,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:43,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:43,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:43,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:43,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:43,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:43,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:43,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:43,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:43,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:43,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:43,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:30:43,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:43,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:43,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:43,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:43,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:43,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:43,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:43,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:43,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:43,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:43,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:43,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:30:43,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:43,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:43,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:43,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:43,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:43,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:30:43,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:43,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:43,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:43,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:30:43,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:43,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:30:43,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:43,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:43,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:43,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:43,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:43,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:43,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:43,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:43,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:43,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:43,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:43,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:30:43,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:43,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:43,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:43,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:30:43,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:43,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:30:43,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:43,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:43,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:43,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:30:43,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:43,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 23:30:43,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:43,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:43,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:43,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:30:43,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:43,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:30:43,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:43,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:43,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:43,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:30:43,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:43,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-24 23:30:43,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:43,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:43,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:43,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:30:43,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:43,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 23:30:43,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:43,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:30:43,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:30:43,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 23:30:43,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:43,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:30:43,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:43,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:43,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:43,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 23:30:43,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:43,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:30:43,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:43,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:43,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:43,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 23:30:43,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:43,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:30:43,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:43,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:43,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:43,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:43,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:43,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:43,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:43,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:43,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:43,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:43,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:43,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-24 23:30:43,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:43,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:43,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:43,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 23:30:43,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:43,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 23:30:43,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:43,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:43,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 23:30:43,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 23:30:43,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:43,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:30:43,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:43,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:43,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:43,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:30:43,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:43,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 23:30:43,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:43,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:43,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:43,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 23:30:43,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:43,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:30:43,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:43,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:43,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:43,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:30:43,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:43,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 23:30:43,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:43,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:43,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:43,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:30:43,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:43,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:30:43,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:43,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:43,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:43,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:30:43,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:43,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:43,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:43,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:43,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:43,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 23:30:43,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 28 [2020-09-24 23:30:43,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:30:43,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:43,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:43,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:43,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:30:43,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:43,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:30:43,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:43,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:43,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:43,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:30:43,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:43,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2020-09-24 23:30:43,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:43,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:43,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:43,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:43,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:43,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:43,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:43,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:43,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:30:43,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:43,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:43,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-09-24 23:30:43,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:43,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:43,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:43,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:43,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:43,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:30:43,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:43,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:43,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:30:43,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:43,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:43,770 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-24 23:30:43,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [853756975] [2020-09-24 23:30:43,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:30:43,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 23:30:43,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730774134] [2020-09-24 23:30:43,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 23:30:43,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:30:43,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 23:30:43,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:30:43,773 INFO L87 Difference]: Start difference. First operand 601 states and 695 transitions. Second operand 10 states. [2020-09-24 23:30:44,294 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:30:45,648 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186