/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=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:08:22,748 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:08:22,752 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:08:22,790 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:08:22,791 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:08:22,798 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:08:22,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:08:22,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:08:22,807 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:08:22,810 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:08:22,811 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:08:22,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:08:22,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:08:22,816 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:08:22,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:08:22,821 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:08:22,823 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:08:22,824 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:08:22,826 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:08:22,836 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:08:22,839 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:08:22,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:08:22,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:08:22,842 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:08:22,854 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:08:22,854 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:08:22,855 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:08:22,856 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:08:22,863 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:08:22,864 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:08:22,865 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:08:22,865 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:08:22,866 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:08:22,870 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:08:22,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:08:22,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:08:22,873 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:08:22,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:08:22,874 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:08:22,875 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:08:22,875 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:08:22,877 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 18:08:22,929 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:08:22,929 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:08:22,930 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:08:22,931 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:08:22,931 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:08:22,932 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:08:22,932 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:08:22,932 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:08:22,933 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:08:22,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:08:22,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:08:22,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:08:22,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:08:22,935 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:08:22,935 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:08:22,935 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:08:22,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:08:22,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:08:22,936 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:08:22,936 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:08:22,937 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:08:22,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:08:22,937 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:08:22,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:08:22,937 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:08:22,938 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:08:22,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:08:22,938 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:08:22,938 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:08:22,938 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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;log-additional-information=true; [2020-09-24 18:08:23,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:08:23,425 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:08:23,430 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:08:23,432 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:08:23,433 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:08:23,434 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product42.cil.c [2020-09-24 18:08:23,527 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/78875c2ae/2c353a2dfec646d6b9814780c04d6a0f/FLAG8fe7ceed2 [2020-09-24 18:08:24,128 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:08:24,129 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product42.cil.c [2020-09-24 18:08:24,146 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/78875c2ae/2c353a2dfec646d6b9814780c04d6a0f/FLAG8fe7ceed2 [2020-09-24 18:08:24,406 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/78875c2ae/2c353a2dfec646d6b9814780c04d6a0f [2020-09-24 18:08:24,422 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:08:24,429 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:08:24,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:08:24,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:08:24,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:08:24,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:08:24" (1/1) ... [2020-09-24 18:08:24,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d96e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:24, skipping insertion in model container [2020-09-24 18:08:24,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:08:24" (1/1) ... [2020-09-24 18:08:24,455 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:08:24,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:08:24,911 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:08:24,934 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:08:25,135 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:08:25,173 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:08:25,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:25 WrapperNode [2020-09-24 18:08:25,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:08:25,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:08:25,175 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:08:25,175 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:08:25,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:25" (1/1) ... [2020-09-24 18:08:25,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:25" (1/1) ... [2020-09-24 18:08:25,217 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:25" (1/1) ... [2020-09-24 18:08:25,218 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:25" (1/1) ... [2020-09-24 18:08:25,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:25" (1/1) ... [2020-09-24 18:08:25,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:25" (1/1) ... [2020-09-24 18:08:25,268 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:25" (1/1) ... [2020-09-24 18:08:25,282 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:08:25,282 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:08:25,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:08:25,283 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:08:25,284 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:25" (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 18:08:25,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:08:25,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:08:25,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 18:08:25,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 18:08:25,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 18:08:25,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 18:08:25,368 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 18:08:25,368 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 18:08:25,368 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 18:08:25,369 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 18:08:25,369 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:08:25,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 18:08:25,369 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 18:08:25,369 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 18:08:25,370 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 18:08:25,370 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 18:08:25,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 18:08:25,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 18:08:25,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 18:08:25,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 18:08:25,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 18:08:25,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 18:08:25,371 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 18:08:25,371 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 18:08:25,372 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 18:08:25,372 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 18:08:25,372 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 18:08:25,372 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 18:08:25,372 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 18:08:25,373 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 18:08:25,373 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 18:08:25,373 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 18:08:25,373 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 18:08:25,373 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 18:08:25,373 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 18:08:25,374 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 18:08:25,374 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 18:08:25,374 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 18:08:25,374 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 18:08:25,374 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 18:08:25,375 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 18:08:25,375 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:08:25,375 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:08:25,375 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 18:08:25,375 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 18:08:25,375 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 18:08:25,376 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 18:08:25,376 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 18:08:25,376 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 18:08:25,376 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 18:08:25,376 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 18:08:25,376 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 18:08:25,377 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 18:08:25,377 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 18:08:25,377 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 18:08:25,377 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 18:08:25,377 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 18:08:25,377 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 18:08:25,377 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 18:08:25,378 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 18:08:25,378 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 18:08:25,378 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 18:08:25,378 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:08:25,378 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 18:08:25,378 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 18:08:25,379 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:08:25,379 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:08:25,379 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 18:08:25,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:08:25,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:08:25,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:08:25,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:08:25,380 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 18:08:25,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:08:25,380 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 18:08:25,380 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 18:08:25,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:08:25,381 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 18:08:25,381 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 18:08:25,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:08:25,381 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 18:08:25,381 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 18:08:25,381 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 18:08:25,382 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 18:08:25,382 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 18:08:25,382 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 18:08:25,382 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 18:08:25,382 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 18:08:25,382 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 18:08:25,382 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 18:08:25,383 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 18:08:25,383 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 18:08:25,383 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 18:08:25,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:08:25,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:08:25,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:08:26,555 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:08:26,556 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 18:08:26,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:08:26 BoogieIcfgContainer [2020-09-24 18:08:26,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:08:26,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:08:26,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:08:26,569 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:08:26,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:08:24" (1/3) ... [2020-09-24 18:08:26,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bb74ed0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:08:26, skipping insertion in model container [2020-09-24 18:08:26,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:25" (2/3) ... [2020-09-24 18:08:26,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bb74ed0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:08:26, skipping insertion in model container [2020-09-24 18:08:26,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:08:26" (3/3) ... [2020-09-24 18:08:26,574 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product42.cil.c [2020-09-24 18:08:26,586 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:08:26,598 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:08:26,623 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:08:26,658 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:08:26,658 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:08:26,658 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:08:26,658 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:08:26,659 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:08:26,659 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:08:26,659 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:08:26,659 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:08:26,690 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states. [2020-09-24 18:08:26,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 18:08:26,711 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:08:26,713 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:08:26,713 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:08:26,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:08:26,722 INFO L82 PathProgramCache]: Analyzing trace with hash 339982816, now seen corresponding path program 1 times [2020-09-24 18:08:26,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:08:26,732 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [991923367] [2020-09-24 18:08:26,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:08:27,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:27,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:27,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:29,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:29,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:32,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 18:08:32,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:08:32,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-24 18:08:32,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:32,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:32,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 18:08:32,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:32,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-09-24 18:08:32,663 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:08:32,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:32,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:32,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:32,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:08:32,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:32,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-24 18:08:32,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:32,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:32,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:32,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:32,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:32,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:08:32,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:32,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:32,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:32,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:32,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:08:32,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:32,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:32,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:32,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:32,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:32,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:08:32,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:32,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:32,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:32,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:32,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 18:08:32,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:32,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:32,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:32,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:32,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:32,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:08:32,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:32,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:32,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:32,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:32,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:08:32,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:32,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:32,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:32,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:32,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:32,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:08:32,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:32,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:32,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:32,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:32,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:32,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:32,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:32,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:32,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:32,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:32,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:08:32,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:32,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:32,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:08:32,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:32,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:32,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:32,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:32,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:32,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:32,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:32,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 18:08:32,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:32,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:32,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:08:32,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:32,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:32,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:32,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:32,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 18:08:32,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:32,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:32,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:32,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:32,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:32,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:32,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:32,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:32,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:32,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:32,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:32,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:32,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:32,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 18:08:32,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:32,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:32,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:32,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:32,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:32,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:32,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:32,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:32,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:32,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:32,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 18:08:32,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:32,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:32,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:32,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:32,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:08:32,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:32,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:33,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:33,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:33,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:33,049 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:08:33,050 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [991923367] [2020-09-24 18:08:33,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:08:33,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:08:33,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94707045] [2020-09-24 18:08:33,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:08:33,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:08:33,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:08:33,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:08:33,086 INFO L87 Difference]: Start difference. First operand 317 states. Second operand 4 states. [2020-09-24 18:08:34,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:08:34,304 INFO L93 Difference]: Finished difference Result 493 states and 574 transitions. [2020-09-24 18:08:34,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 18:08:34,306 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-24 18:08:34,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:08:34,325 INFO L225 Difference]: With dead ends: 493 [2020-09-24 18:08:34,326 INFO L226 Difference]: Without dead ends: 312 [2020-09-24 18:08:34,332 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:08:34,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-09-24 18:08:34,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 266. [2020-09-24 18:08:34,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-09-24 18:08:34,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 287 transitions. [2020-09-24 18:08:34,437 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 287 transitions. Word has length 160 [2020-09-24 18:08:34,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:08:34,438 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 287 transitions. [2020-09-24 18:08:34,438 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:08:34,439 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 287 transitions. [2020-09-24 18:08:34,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 18:08:34,444 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:08:34,444 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:08:34,444 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:08:34,448 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:08:34,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:08:34,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1492853456, now seen corresponding path program 1 times [2020-09-24 18:08:34,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:08:34,448 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1435375473] [2020-09-24 18:08:34,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:08:34,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:34,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:34,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:36,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:36,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:37,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:39,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:39,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-24 18:08:39,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:08:39,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-24 18:08:39,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:39,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:39,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 18:08:39,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:08:39,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:39,949 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:08:39,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:39,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:39,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:40,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:40,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:08:40,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:40,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-24 18:08:40,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:40,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:40,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:40,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:40,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:40,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:08:40,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:40,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:40,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:40,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:40,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:40,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:08:40,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:40,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:40,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:40,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:40,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:40,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:08:40,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:40,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:40,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:40,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:40,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:40,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 18:08:40,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:40,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:40,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:40,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:40,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:40,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:08:40,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:40,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:40,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:40,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:40,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:40,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:40,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:40,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:40,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:40,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:40,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:40,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:08:40,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:40,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:40,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:40,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:40,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:40,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:08:40,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:40,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:40,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:40,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:40,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:40,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:08:40,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:40,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:40,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:40,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:08:40,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:40,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:40,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:40,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:40,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:40,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:40,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:40,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 18:08:40,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:40,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:40,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:40,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:08:40,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:40,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:40,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:40,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:40,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 18:08:40,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:40,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:40,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:40,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:40,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:40,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:40,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:40,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:40,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:40,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:40,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:40,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:40,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:40,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:40,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 18:08:40,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:40,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:40,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:40,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:40,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:40,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:40,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:40,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:40,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:40,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:40,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:40,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 18:08:40,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:40,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:40,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:40,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:40,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:40,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:40,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:40,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:40,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:40,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:40,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:40,235 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:08:40,236 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1435375473] [2020-09-24 18:08:40,236 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:08:40,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:08:40,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811390823] [2020-09-24 18:08:40,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:08:40,239 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:08:40,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:08:40,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:08:40,240 INFO L87 Difference]: Start difference. First operand 266 states and 287 transitions. Second operand 5 states. [2020-09-24 18:08:40,805 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:08:41,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:08:41,731 INFO L93 Difference]: Finished difference Result 418 states and 466 transitions. [2020-09-24 18:08:41,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:08:41,732 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-24 18:08:41,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:08:41,737 INFO L225 Difference]: With dead ends: 418 [2020-09-24 18:08:41,737 INFO L226 Difference]: Without dead ends: 301 [2020-09-24 18:08:41,739 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:08:41,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-09-24 18:08:41,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 256. [2020-09-24 18:08:41,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-09-24 18:08:41,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 274 transitions. [2020-09-24 18:08:41,813 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 274 transitions. Word has length 161 [2020-09-24 18:08:41,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:08:41,813 INFO L479 AbstractCegarLoop]: Abstraction has 256 states and 274 transitions. [2020-09-24 18:08:41,813 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:08:41,814 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 274 transitions. [2020-09-24 18:08:41,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-24 18:08:41,820 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:08:41,823 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:08:41,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:08:41,823 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:08:41,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:08:41,824 INFO L82 PathProgramCache]: Analyzing trace with hash -286261696, now seen corresponding path program 1 times [2020-09-24 18:08:41,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:08:41,824 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [119669810] [2020-09-24 18:08:41,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:08:41,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:41,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:42,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:42,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:44,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:46,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:46,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-24 18:08:46,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:08:46,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 18:08:46,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:46,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:46,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-24 18:08:46,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 18:08:46,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:47,233 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:08:47,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:47,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:47,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:47,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:47,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:08:47,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:47,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-24 18:08:47,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:47,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:47,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:47,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:47,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:47,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:08:47,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:47,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:47,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:47,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:47,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:47,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:08:47,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:47,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:47,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:47,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:47,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:47,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:08:47,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:47,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:47,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:47,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:47,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:47,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:08:47,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:47,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:47,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:47,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:47,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:47,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:08:47,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:47,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:47,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:47,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:47,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:47,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:08:47,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:47,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:47,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:47,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:47,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:47,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:08:47,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:47,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:47,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:47,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:47,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:47,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:47,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:47,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:47,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:47,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:47,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:47,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:08:47,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:47,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:47,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:47,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:08:47,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:47,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:08:47,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:47,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:47,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:47,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:47,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:47,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 18:08:47,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:47,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:47,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:47,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:08:47,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:47,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:47,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:47,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:47,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:47,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 18:08:47,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:47,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 18:08:47,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:47,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:47,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:47,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:08:47,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:47,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:08:47,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:47,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:47,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:47,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 18:08:47,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:47,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:47,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:47,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:47,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:47,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:47,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:47,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:47,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:47,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:47,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:47,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:47,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:47,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-24 18:08:47,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:47,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:47,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:47,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:47,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:47,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:47,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:47,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:47,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:47,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:47,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:47,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-24 18:08:47,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:47,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:47,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:47,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:47,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:47,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 18:08:47,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:47,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:47,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:47,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:47,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:47,551 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:08:47,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [119669810] [2020-09-24 18:08:47,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:08:47,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:08:47,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173474142] [2020-09-24 18:08:47,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:08:47,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:08:47,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:08:47,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:08:47,554 INFO L87 Difference]: Start difference. First operand 256 states and 274 transitions. Second operand 6 states. [2020-09-24 18:08:48,214 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:08:49,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:08:49,316 INFO L93 Difference]: Finished difference Result 465 states and 531 transitions. [2020-09-24 18:08:49,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 18:08:49,316 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2020-09-24 18:08:49,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:08:49,321 INFO L225 Difference]: With dead ends: 465 [2020-09-24 18:08:49,321 INFO L226 Difference]: Without dead ends: 324 [2020-09-24 18:08:49,323 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:08:49,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2020-09-24 18:08:49,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 256. [2020-09-24 18:08:49,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-09-24 18:08:49,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 273 transitions. [2020-09-24 18:08:49,363 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 273 transitions. Word has length 174 [2020-09-24 18:08:49,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:08:49,364 INFO L479 AbstractCegarLoop]: Abstraction has 256 states and 273 transitions. [2020-09-24 18:08:49,364 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:08:49,364 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 273 transitions. [2020-09-24 18:08:49,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-09-24 18:08:49,367 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:08:49,367 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:08:49,367 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:08:49,368 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:08:49,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:08:49,368 INFO L82 PathProgramCache]: Analyzing trace with hash 24909347, now seen corresponding path program 1 times [2020-09-24 18:08:49,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:08:49,369 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [214243084] [2020-09-24 18:08:49,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:08:49,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:49,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:49,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:50,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:51,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:52,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:53,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:54,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:54,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-09-24 18:08:54,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 18:08:54,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-24 18:08:54,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:54,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:08:54,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-09-24 18:08:54,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:08:54,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:54,775 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:08:54,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:54,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:54,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:54,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:54,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:08:54,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:54,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-24 18:08:54,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:54,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:54,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:54,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:54,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:54,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:08:54,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:54,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:54,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:54,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:54,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:54,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:08:54,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:54,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:54,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:54,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:54,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:54,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:08:54,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:54,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:54,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:54,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:54,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:54,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:08:54,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:54,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:54,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:54,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:54,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:54,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:08:54,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:54,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:54,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:54,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:54,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:54,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:08:54,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:54,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:54,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:54,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:54,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:54,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:08:54,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:54,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:54,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:54,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:54,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:54,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:08:54,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:54,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:54,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:54,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:54,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:54,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:08:54,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:54,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:54,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:54,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:08:54,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:54,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:08:54,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:54,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:54,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:54,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:54,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:54,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 18:08:54,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:54,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:54,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:54,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:08:54,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:54,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:54,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:54,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:54,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:54,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:54,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:54,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 18:08:54,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:54,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:54,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:54,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:08:54,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:54,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:54,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:54,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:54,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:54,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:54,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:54,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:55,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:55,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:55,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:55,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:55,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:55,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:08:55,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:55,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:55,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:55,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:55,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:55,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 18:08:55,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:55,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:55,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:55,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 18:08:55,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:55,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:08:55,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:55,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:08:55,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 18:08:55,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 18:08:55,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:55,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:08:55,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:55,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:55,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:55,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:55,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:55,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:08:55,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:55,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:55,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:55,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:08:55,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:55,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 18:08:55,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:55,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:55,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:55,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:55,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:55,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:55,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:55,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:55,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:55,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:55,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:55,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-24 18:08:55,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:55,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:55,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:55,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:55,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:55,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:55,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:55,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:55,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:55,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:55,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:55,172 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:08:55,175 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [214243084] [2020-09-24 18:08:55,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:08:55,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 18:08:55,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653424109] [2020-09-24 18:08:55,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 18:08:55,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:08:55,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 18:08:55,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-24 18:08:55,184 INFO L87 Difference]: Start difference. First operand 256 states and 273 transitions. Second operand 9 states. [2020-09-24 18:08:55,953 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:08:58,417 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:08:58,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:08:58,980 INFO L93 Difference]: Finished difference Result 645 states and 764 transitions. [2020-09-24 18:08:58,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 18:08:58,981 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 182 [2020-09-24 18:08:58,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:08:58,987 INFO L225 Difference]: With dead ends: 645 [2020-09-24 18:08:58,987 INFO L226 Difference]: Without dead ends: 504 [2020-09-24 18:08:58,988 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=140, Invalid=322, Unknown=0, NotChecked=0, Total=462 [2020-09-24 18:08:58,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-09-24 18:08:59,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 366. [2020-09-24 18:08:59,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2020-09-24 18:08:59,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 396 transitions. [2020-09-24 18:08:59,046 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 396 transitions. Word has length 182 [2020-09-24 18:08:59,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:08:59,047 INFO L479 AbstractCegarLoop]: Abstraction has 366 states and 396 transitions. [2020-09-24 18:08:59,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 18:08:59,047 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 396 transitions. [2020-09-24 18:08:59,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-09-24 18:08:59,050 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:08:59,051 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:08:59,051 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:08:59,051 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:08:59,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:08:59,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1649506493, now seen corresponding path program 1 times [2020-09-24 18:08:59,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:08:59,052 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [399345887] [2020-09-24 18:08:59,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:08:59,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:59,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:59,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:01,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:01,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:01,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:04,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:04,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-09-24 18:09:04,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:09:04,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 18:09:04,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:04,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:09:04,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-09-24 18:09:04,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:09:04,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:04,429 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:09:04,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:04,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:04,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:04,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:04,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:09:04,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:04,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-24 18:09:04,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:04,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:04,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:04,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:04,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:04,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:09:04,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:04,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:04,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:04,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:04,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:04,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:04,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:04,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:04,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:04,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:04,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:04,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:09:04,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:04,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:04,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:04,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:04,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:04,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:04,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:04,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:04,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:04,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:04,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:04,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:09:04,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:04,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:04,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:04,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:04,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:04,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:09:04,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:04,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:04,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:04,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:04,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:04,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:09:04,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:04,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:04,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:04,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:04,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:04,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:04,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:04,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:04,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:04,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:04,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:09:04,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:09:04,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:04,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:04,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:04,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:04,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:04,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:04,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:04,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:04,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:04,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:04,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:04,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 18:09:04,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:04,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:04,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:04,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:09:04,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:04,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:09:04,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:04,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:04,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:04,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:04,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:04,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 18:09:04,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:04,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:04,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:04,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:09:04,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:04,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:04,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:04,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:04,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:04,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:04,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:04,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:09:04,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:04,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:04,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:04,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:04,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:04,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:04,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:04,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:04,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:04,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:04,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:04,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 18:09:04,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:04,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:04,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:04,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:04,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 18:09:04,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:09:04,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-09-24 18:09:04,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:04,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:09:04,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 18:09:04,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:09:04,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:04,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:09:04,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:04,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:04,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:04,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 18:09:04,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:04,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 18:09:04,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:04,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:09:04,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 18:09:04,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:09:04,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:04,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 18:09:04,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:04,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:04,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:04,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:09:04,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:04,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:09:04,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:04,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:09:04,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:09:04,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:09:04,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:04,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 18:09:04,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:04,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:04,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:04,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:09:04,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:04,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:04,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:04,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:04,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-24 18:09:04,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:04,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:04,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-24 18:09:04,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:04,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:04,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:04,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:04,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:04,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:09:04,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:04,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:04,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:04,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:04,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:04,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-09-24 18:09:04,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:04,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:04,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:09:04,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:09:04,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:09:04,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:09:04,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:09:04,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:09:04,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:09:04,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:09:04,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:09:04,964 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:09:04,964 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [399345887] [2020-09-24 18:09:04,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:09:04,965 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 18:09:04,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118933406] [2020-09-24 18:09:04,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 18:09:04,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:09:04,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 18:09:04,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 18:09:04,967 INFO L87 Difference]: Start difference. First operand 366 states and 396 transitions. Second operand 10 states. [2020-09-24 18:09:06,338 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:09:06,650 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:09:06,977 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:09:07,330 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:09:07,619 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:09:08,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:09:08,874 INFO L93 Difference]: Finished difference Result 760 states and 902 transitions. [2020-09-24 18:09:08,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 18:09:08,874 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 206 [2020-09-24 18:09:08,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:09:08,878 INFO L225 Difference]: With dead ends: 760 [2020-09-24 18:09:08,879 INFO L226 Difference]: Without dead ends: 509 [2020-09-24 18:09:08,880 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-24 18:09:08,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2020-09-24 18:09:08,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 372. [2020-09-24 18:09:08,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2020-09-24 18:09:08,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 402 transitions. [2020-09-24 18:09:08,936 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 402 transitions. Word has length 206 [2020-09-24 18:09:08,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:09:08,937 INFO L479 AbstractCegarLoop]: Abstraction has 372 states and 402 transitions. [2020-09-24 18:09:08,937 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 18:09:08,937 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 402 transitions. [2020-09-24 18:09:08,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-09-24 18:09:08,940 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:09:08,940 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:09:08,940 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:09:08,941 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:09:08,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:09:08,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1223219939, now seen corresponding path program 1 times [2020-09-24 18:09:08,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:09:08,941 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [876385983] [2020-09-24 18:09:08,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:09:08,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:09:09,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:09,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:09:09,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking...