/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=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:38:17,779 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:38:17,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:38:17,832 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:38:17,833 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:38:17,845 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:38:17,847 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:38:17,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:38:17,854 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:38:17,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:38:17,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:38:17,861 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:38:17,862 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:38:17,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:38:17,868 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:38:17,870 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:38:17,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:38:17,872 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:38:17,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:38:17,883 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:38:17,884 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:38:17,886 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:38:17,887 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:38:17,888 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:38:17,891 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:38:17,892 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:38:17,892 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:38:17,895 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:38:17,896 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:38:17,897 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:38:17,897 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:38:17,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:38:17,899 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:38:17,900 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:38:17,901 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:38:17,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:38:17,902 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:38:17,903 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:38:17,903 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:38:17,904 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:38:17,906 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:38:17,907 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 00:38:17,953 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:38:17,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:38:17,956 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:38:17,956 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:38:17,956 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:38:17,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:38:17,957 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:38:17,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:38:17,957 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:38:17,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:38:17,958 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:38:17,959 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:38:17,959 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:38:17,959 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:38:17,960 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:38:17,960 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:38:17,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:38:17,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:38:17,961 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:38:17,961 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:38:17,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:38:17,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:38:17,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:38:17,962 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:38:17,962 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:38:17,962 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:38:17,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:38:17,963 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:38:17,963 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:38:17,963 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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;log-additional-information=true; [2020-09-25 00:38:18,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:38:18,455 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:38:18,460 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:38:18,462 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:38:18,462 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:38:18,463 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product49.cil.c [2020-09-25 00:38:18,542 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f3e038b0e/2cf34a1bece74800a1abfcb15c3643b5/FLAGe56899b83 [2020-09-25 00:38:19,184 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:38:19,185 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product49.cil.c [2020-09-25 00:38:19,216 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f3e038b0e/2cf34a1bece74800a1abfcb15c3643b5/FLAGe56899b83 [2020-09-25 00:38:19,423 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f3e038b0e/2cf34a1bece74800a1abfcb15c3643b5 [2020-09-25 00:38:19,436 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:38:19,441 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:38:19,443 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:38:19,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:38:19,447 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:38:19,448 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:38:19" (1/1) ... [2020-09-25 00:38:19,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@201d7596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:19, skipping insertion in model container [2020-09-25 00:38:19,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:38:19" (1/1) ... [2020-09-25 00:38:19,460 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:38:19,530 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:38:20,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:38:20,032 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:38:20,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:38:20,195 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:38:20,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:20 WrapperNode [2020-09-25 00:38:20,196 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:38:20,197 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:38:20,197 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:38:20,197 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:38:20,211 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:20" (1/1) ... [2020-09-25 00:38:20,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:20" (1/1) ... [2020-09-25 00:38:20,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:20" (1/1) ... [2020-09-25 00:38:20,234 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:20" (1/1) ... [2020-09-25 00:38:20,278 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:20" (1/1) ... [2020-09-25 00:38:20,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:20" (1/1) ... [2020-09-25 00:38:20,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:20" (1/1) ... [2020-09-25 00:38:20,303 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:38:20,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:38:20,304 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:38:20,304 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:38:20,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:20" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:38:20,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:38:20,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:38:20,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 00:38:20,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 00:38:20,407 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 00:38:20,407 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 00:38:20,407 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 00:38:20,407 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 00:38:20,408 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:38:20,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 00:38:20,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 00:38:20,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 00:38:20,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 00:38:20,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 00:38:20,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 00:38:20,409 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 00:38:20,409 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 00:38:20,410 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:38:20,410 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 00:38:20,410 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 00:38:20,410 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 00:38:20,411 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 00:38:20,411 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 00:38:20,411 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 00:38:20,411 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 00:38:20,411 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 00:38:20,412 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 00:38:20,412 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 00:38:20,412 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 00:38:20,412 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 00:38:20,412 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 00:38:20,412 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 00:38:20,413 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 00:38:20,413 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 00:38:20,413 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 00:38:20,413 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 00:38:20,413 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 00:38:20,413 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 00:38:20,414 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 00:38:20,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 00:38:20,414 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:38:20,414 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:38:20,414 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 00:38:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 00:38:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 00:38:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 00:38:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 00:38:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 00:38:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 00:38:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 00:38:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 00:38:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 00:38:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 00:38:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 00:38:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 00:38:20,417 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 00:38:20,417 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 00:38:20,417 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 00:38:20,417 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 00:38:20,417 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:38:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 00:38:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:38:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:38:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 00:38:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:38:20,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:38:20,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:38:20,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:38:20,419 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 00:38:20,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:38:20,420 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 00:38:20,420 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 00:38:20,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:38:20,420 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 00:38:20,420 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 00:38:20,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:38:20,421 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 00:38:20,421 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 00:38:20,421 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 00:38:20,421 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 00:38:20,421 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 00:38:20,422 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 00:38:20,422 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 00:38:20,422 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 00:38:20,422 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 00:38:20,422 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 00:38:20,423 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 00:38:20,423 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 00:38:20,423 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 00:38:20,423 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 00:38:20,423 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 00:38:20,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:38:20,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 00:38:20,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:38:21,862 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:38:21,862 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 00:38:21,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:38:21 BoogieIcfgContainer [2020-09-25 00:38:21,873 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:38:21,874 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:38:21,874 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:38:21,880 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:38:21,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:38:19" (1/3) ... [2020-09-25 00:38:21,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8443cd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:38:21, skipping insertion in model container [2020-09-25 00:38:21,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:38:20" (2/3) ... [2020-09-25 00:38:21,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8443cd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:38:21, skipping insertion in model container [2020-09-25 00:38:21,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:38:21" (3/3) ... [2020-09-25 00:38:21,884 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product49.cil.c [2020-09-25 00:38:21,893 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:38:21,904 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:38:21,925 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:38:21,957 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:38:21,957 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:38:21,957 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:38:21,957 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:38:21,957 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:38:21,957 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:38:21,958 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:38:21,958 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:38:21,988 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states. [2020-09-25 00:38:22,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 00:38:22,011 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:38:22,012 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:38:22,013 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:38:22,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:38:22,021 INFO L82 PathProgramCache]: Analyzing trace with hash -231713174, now seen corresponding path program 1 times [2020-09-25 00:38:22,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:38:22,033 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1746352737] [2020-09-25 00:38:22,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:38:22,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:22,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:22,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:23,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:24,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:24,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:27,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:27,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 00:38:27,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:38:27,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-09-25 00:38:27,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:27,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:38:27,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-09-25 00:38:27,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:38:27,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 00:38:27,933 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:38:27,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:38:27,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:27,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:28,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:28,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:38:28,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:28,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-25 00:38:28,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:28,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:28,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:28,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:28,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:28,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:38:28,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:28,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:28,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:28,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:28,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:28,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:38:28,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:28,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:28,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:28,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:28,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:28,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:38:28,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:28,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:28,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:28,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:28,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:28,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 00:38:28,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:28,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:28,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:28,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:28,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:28,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:38:28,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:28,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:28,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:28,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:28,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:28,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:38:28,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:28,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:28,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:28,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:28,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:28,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:38:28,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:28,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:28,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:28,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:28,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:28,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:28,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:28,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:28,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:28,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:28,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:28,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 00:38:28,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:28,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:28,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:28,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:28,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:28,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:38:28,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:28,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:38:28,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:28,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:38:28,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:28,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 00:38:28,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:28,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:28,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:28,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:28,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:28,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:38:28,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:28,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:38:28,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:28,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:38:28,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:28,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:38:28,358 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1746352737] [2020-09-25 00:38:28,361 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:38:28,362 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 00:38:28,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688320359] [2020-09-25 00:38:28,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:38:28,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:38:28,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:38:28,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:38:28,394 INFO L87 Difference]: Start difference. First operand 318 states. Second operand 8 states. [2020-09-25 00:38:29,008 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:38:30,227 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:30,493 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:38:30,806 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:31,140 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:38:31,465 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:32,191 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:38:32,496 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:32,865 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:38:34,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:38:34,190 INFO L93 Difference]: Finished difference Result 600 states and 746 transitions. [2020-09-25 00:38:34,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 00:38:34,193 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 00:38:34,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:38:34,215 INFO L225 Difference]: With dead ends: 600 [2020-09-25 00:38:34,216 INFO L226 Difference]: Without dead ends: 399 [2020-09-25 00:38:34,223 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 00:38:34,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-09-25 00:38:34,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 357. [2020-09-25 00:38:34,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 357 states. [2020-09-25 00:38:34,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 409 transitions. [2020-09-25 00:38:34,371 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 409 transitions. Word has length 142 [2020-09-25 00:38:34,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:38:34,372 INFO L479 AbstractCegarLoop]: Abstraction has 357 states and 409 transitions. [2020-09-25 00:38:34,372 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:38:34,373 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 409 transitions. [2020-09-25 00:38:34,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-25 00:38:34,378 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:38:34,378 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:38:34,379 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:38:34,379 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:38:34,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:38:34,380 INFO L82 PathProgramCache]: Analyzing trace with hash 285397142, now seen corresponding path program 1 times [2020-09-25 00:38:34,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:38:34,380 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [568386532] [2020-09-25 00:38:34,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:38:34,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:34,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:34,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:35,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:39,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:39,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-09-25 00:38:39,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:38:39,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 00:38:39,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:39,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:38:39,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 170 [2020-09-25 00:38:39,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:38:39,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:39,810 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:38:39,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:38:39,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:39,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:40,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:40,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:38:40,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:40,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-09-25 00:38:40,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:40,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:40,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:40,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:40,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:40,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:38:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:40,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:40,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:40,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:40,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:40,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:40,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:40,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:40,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:40,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:40,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:40,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:38:40,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:40,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:40,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:40,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:40,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:40,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:38:40,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:40,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:40,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:40,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:40,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:40,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:38:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:40,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:40,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:40,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:40,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:40,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:38:40,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:40,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:40,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:40,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:40,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:40,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:38:40,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:40,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:40,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:40,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:40,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:40,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:40,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:40,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:40,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:40,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:40,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:40,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 00:38:40,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:40,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:40,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:40,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:38:40,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:40,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 00:38:40,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:40,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:38:40,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 00:38:40,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:38:40,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:40,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:38:40,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:40,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:40,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:40,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:38:40,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:40,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 00:38:40,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:40,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:38:40,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 00:38:40,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:38:40,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:40,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:38:40,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:40,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:40,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:40,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:38:40,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:40,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 00:38:40,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:40,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:38:40,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:40,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 00:38:40,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:40,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:38:40,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:40,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:40,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:40,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:38:40,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:40,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:38:40,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:40,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:40,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:40,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:40,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:40,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:38:40,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:40,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:40,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:40,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:38:40,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:40,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:38:40,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:40,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:40,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 00:38:40,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:40,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:40,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 00:38:40,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:40,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:40,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:40,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:40,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:40,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:40,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:40,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:40,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:38:40,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:40,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:40,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-25 00:38:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:40,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:40,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:40,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:40,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:40,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:40,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:40,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:40,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:38:40,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:40,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:40,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:38:40,523 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [568386532] [2020-09-25 00:38:40,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:38:40,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:38:40,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581823630] [2020-09-25 00:38:40,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:38:40,529 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:38:40,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:38:40,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:38:40,530 INFO L87 Difference]: Start difference. First operand 357 states and 409 transitions. Second operand 9 states. [2020-09-25 00:38:42,009 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:38:42,348 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:38:42,645 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:38:42,948 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:38:43,266 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:38:43,549 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:38:44,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:38:44,562 INFO L93 Difference]: Finished difference Result 690 states and 854 transitions. [2020-09-25 00:38:44,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 00:38:44,563 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 181 [2020-09-25 00:38:44,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:38:44,569 INFO L225 Difference]: With dead ends: 690 [2020-09-25 00:38:44,569 INFO L226 Difference]: Without dead ends: 443 [2020-09-25 00:38:44,573 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2020-09-25 00:38:44,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2020-09-25 00:38:44,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 365. [2020-09-25 00:38:44,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-09-25 00:38:44,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 417 transitions. [2020-09-25 00:38:44,632 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 417 transitions. Word has length 181 [2020-09-25 00:38:44,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:38:44,633 INFO L479 AbstractCegarLoop]: Abstraction has 365 states and 417 transitions. [2020-09-25 00:38:44,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:38:44,633 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 417 transitions. [2020-09-25 00:38:44,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 00:38:44,636 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:38:44,637 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:38:44,637 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:38:44,637 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:38:44,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:38:44,637 INFO L82 PathProgramCache]: Analyzing trace with hash 948335565, now seen corresponding path program 1 times [2020-09-25 00:38:44,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:38:44,638 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [246053668] [2020-09-25 00:38:44,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:38:44,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:44,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:45,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:49,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:49,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-25 00:38:49,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:38:49,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4837 [2020-09-25 00:38:49,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:49,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:38:49,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 00:38:49,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:38:49,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:49,799 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:38:49,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:38:49,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:49,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:49,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:49,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:38:49,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:49,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-25 00:38:49,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:49,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:49,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:49,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:49,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:49,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:38:49,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:49,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:49,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:49,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:49,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:49,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:38:49,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:49,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:49,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:49,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:49,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:49,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:38:49,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:49,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:49,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:49,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:49,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:49,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:38:49,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:49,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:49,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:49,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:49,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:49,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:38:49,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:49,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:49,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:49,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:49,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:49,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:38:49,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:49,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:49,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:49,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:49,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:49,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:38:49,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:49,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:49,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:49,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:38:49,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:49,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:38:49,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:49,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:49,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:49,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:49,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:49,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 00:38:49,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:49,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:50,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:50,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:38:50,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:50,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-25 00:38:50,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:50,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:38:50,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 00:38:50,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:38:50,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:50,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:38:50,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:50,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:50,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:50,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:38:50,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:50,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 00:38:50,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:50,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:38:50,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:38:50,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:38:50,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:50,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:38:50,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:50,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:50,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:50,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:38:50,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:50,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 00:38:50,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:50,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:38:50,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:38:50,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:38:50,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:50,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:38:50,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:50,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:50,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:50,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:38:50,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:50,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:38:50,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:50,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:38:50,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:38:50,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:38:50,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:50,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:38:50,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:50,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:50,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:50,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:38:50,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:50,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:38:50,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:50,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:50,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 00:38:50,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:50,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:50,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 00:38:50,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:50,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:50,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:50,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:50,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:50,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:50,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:50,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:50,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:38:50,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:50,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:50,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 00:38:50,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:50,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:50,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:50,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:38:50,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:38:50,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:38:50,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:50,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:38:50,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:38:50,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:38:50,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:38:50,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:38:50,414 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [246053668] [2020-09-25 00:38:50,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:38:50,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 00:38:50,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439757582] [2020-09-25 00:38:50,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 00:38:50,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:38:50,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 00:38:50,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:38:50,421 INFO L87 Difference]: Start difference. First operand 365 states and 417 transitions. Second operand 8 states. [2020-09-25 00:38:51,795 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:38:52,103 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:38:52,439 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:38:52,793 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:38:53,080 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:38:54,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:38:54,120 INFO L93 Difference]: Finished difference Result 709 states and 896 transitions. [2020-09-25 00:38:54,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 00:38:54,122 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 190 [2020-09-25 00:38:54,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:38:54,127 INFO L225 Difference]: With dead ends: 709 [2020-09-25 00:38:54,127 INFO L226 Difference]: Without dead ends: 454 [2020-09-25 00:38:54,129 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-09-25 00:38:54,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2020-09-25 00:38:54,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 371. [2020-09-25 00:38:54,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2020-09-25 00:38:54,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 423 transitions. [2020-09-25 00:38:54,185 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 423 transitions. Word has length 190 [2020-09-25 00:38:54,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:38:54,186 INFO L479 AbstractCegarLoop]: Abstraction has 371 states and 423 transitions. [2020-09-25 00:38:54,186 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 00:38:54,186 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 423 transitions. [2020-09-25 00:38:54,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 00:38:54,189 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:38:54,190 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:38:54,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:38:54,190 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:38:54,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:38:54,191 INFO L82 PathProgramCache]: Analyzing trace with hash -691958416, now seen corresponding path program 1 times [2020-09-25 00:38:54,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:38:54,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1990693292] [2020-09-25 00:38:54,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:38:54,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:54,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:54,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:38:59,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:38:59,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-25 00:38:59,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:38:59,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 00:38:59,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:38:59,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 00:38:59,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 00:38:59,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-09-25 00:38:59,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:38:59,714 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 00:38:59,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:38:59,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:38:59,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:00,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:00,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 00:39:00,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:00,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-09-25 00:39:00,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:00,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:39:00,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:00,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 00:39:00,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:00,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 00:39:00,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:00,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:00,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:00,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:39:00,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:00,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:39:00,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:00,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:39:00,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:00,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:39:00,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:00,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 00:39:00,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:00,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:00,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:00,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:39:00,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:00,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:39:00,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:00,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:39:00,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:00,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:39:00,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:00,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 00:39:00,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:00,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:00,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:00,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:39:00,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:00,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 00:39:00,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:00,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:39:00,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:00,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:39:00,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:00,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 00:39:00,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:00,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:00,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:00,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:39:00,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:00,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:39:00,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:00,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:39:00,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:00,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 00:39:00,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:00,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 00:39:00,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:00,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:00,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:00,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 00:39:00,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:00,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 00:39:00,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:00,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:39:00,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:00,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 00:39:00,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:00,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:39:00,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:00,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:00,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:00,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 00:39:00,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:00,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 00:39:00,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:00,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:39:00,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:00,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:39:00,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:00,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:39:00,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:00,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:00,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:00,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 00:39:00,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:00,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 00:39:00,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:00,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:39:00,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:00,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:39:00,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:00,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:39:00,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:00,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:00,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:00,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:39:00,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:00,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:39:00,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:00,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:39:00,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:00,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:39:00,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:00,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 00:39:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:00,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:00,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:00,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:39:00,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:00,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:39:00,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:00,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:39:00,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:00,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:39:00,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:00,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 00:39:00,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:00,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:00,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:00,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:39:00,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:00,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 00:39:00,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:00,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:39:00,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:39:00,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:39:00,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:00,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 00:39:00,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:00,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:39:00,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:39:00,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:39:00,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:39:00,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:39:00,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:39:00,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:39:00,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:39:00,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:39:00,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:39:00,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:39:00,335 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1990693292] [2020-09-25 00:39:00,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:39:00,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:39:00,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161780941] [2020-09-25 00:39:00,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:39:00,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:39:00,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:39:00,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:39:00,338 INFO L87 Difference]: Start difference. First operand 371 states and 423 transitions. Second operand 9 states. [2020-09-25 00:39:00,866 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 00:39:01,722 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 00:39:02,062 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 00:39:02,442 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:39:02,809 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 00:39:03,122 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 00:39:03,604 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 00:39:03,922 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:39:04,336 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 00:39:06,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:39:06,483 INFO L93 Difference]: Finished difference Result 1004 states and 1285 transitions. [2020-09-25 00:39:06,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 00:39:06,484 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 190 [2020-09-25 00:39:06,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:39:06,489 INFO L225 Difference]: With dead ends: 1004 [2020-09-25 00:39:06,489 INFO L226 Difference]: Without dead ends: 697 [2020-09-25 00:39:06,492 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 00:39:06,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2020-09-25 00:39:06,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 585. [2020-09-25 00:39:06,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2020-09-25 00:39:06,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 673 transitions. [2020-09-25 00:39:06,571 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 673 transitions. Word has length 190 [2020-09-25 00:39:06,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:39:06,572 INFO L479 AbstractCegarLoop]: Abstraction has 585 states and 673 transitions. [2020-09-25 00:39:06,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:39:06,572 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 673 transitions. [2020-09-25 00:39:06,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-25 00:39:06,576 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:39:06,576 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:39:06,576 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:39:06,577 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:39:06,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:39:06,577 INFO L82 PathProgramCache]: Analyzing trace with hash -614630891, now seen corresponding path program 1 times [2020-09-25 00:39:06,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:39:06,577 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1376818287] [2020-09-25 00:39:06,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:39:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:39:06,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking...