/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=WIDEST --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_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:54:06,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:54:06,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:54:06,723 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:54:06,724 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:54:06,732 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:54:06,734 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:54:06,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:54:06,740 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:54:06,743 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:54:06,744 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:54:06,745 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:54:06,745 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:54:06,748 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:54:06,750 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:54:06,752 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:54:06,754 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:54:06,755 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:54:06,756 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:54:06,766 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:54:06,768 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:54:06,769 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:54:06,770 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:54:06,771 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:54:06,783 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:54:06,783 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:54:06,783 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:54:06,784 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:54:06,790 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:54:06,791 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:54:06,791 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:54:06,792 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:54:06,796 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:54:06,797 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:54:06,800 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:54:06,800 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:54:06,801 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:54:06,801 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:54:06,801 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:54:06,802 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:54:06,803 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:54:06,804 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 02:54:06,851 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:54:06,851 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:54:06,853 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:54:06,853 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:54:06,853 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:54:06,854 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:54:06,854 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:54:06,854 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:54:06,855 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:54:06,855 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:54:06,856 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:54:06,856 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:54:06,856 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:54:06,857 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:54:06,857 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:54:06,857 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:54:06,857 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:54:06,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:54:06,858 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:54:06,858 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:54:06,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:54:06,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:54:06,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:54:06,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:54:06,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:54:06,859 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:54:06,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:54:06,860 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:54:06,860 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:54:06,860 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true; [2020-09-25 02:54:07,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:54:07,320 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:54:07,324 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:54:07,326 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:54:07,326 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:54:07,327 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product50.cil.c [2020-09-25 02:54:07,403 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dd931e7b0/47fad1d6c61345799334c1e865cb8477/FLAG34945caf1 [2020-09-25 02:54:08,011 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:54:08,012 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product50.cil.c [2020-09-25 02:54:08,028 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dd931e7b0/47fad1d6c61345799334c1e865cb8477/FLAG34945caf1 [2020-09-25 02:54:08,270 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dd931e7b0/47fad1d6c61345799334c1e865cb8477 [2020-09-25 02:54:08,284 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:54:08,289 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:54:08,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:54:08,290 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:54:08,296 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:54:08,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:54:08" (1/1) ... [2020-09-25 02:54:08,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b0ba802 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:08, skipping insertion in model container [2020-09-25 02:54:08,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:54:08" (1/1) ... [2020-09-25 02:54:08,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:54:08,361 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:54:08,844 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:54:08,858 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:54:08,962 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:54:08,999 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:54:09,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:09 WrapperNode [2020-09-25 02:54:09,000 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:54:09,001 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:54:09,001 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:54:09,001 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:54:09,016 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:09" (1/1) ... [2020-09-25 02:54:09,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:09" (1/1) ... [2020-09-25 02:54:09,037 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:09" (1/1) ... [2020-09-25 02:54:09,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:09" (1/1) ... [2020-09-25 02:54:09,072 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:09" (1/1) ... [2020-09-25 02:54:09,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:09" (1/1) ... [2020-09-25 02:54:09,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:09" (1/1) ... [2020-09-25 02:54:09,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:54:09,098 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:54:09,098 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:54:09,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:54:09,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:09" (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 02:54:09,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:54:09,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:54:09,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 02:54:09,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 02:54:09,192 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 02:54:09,192 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 02:54:09,192 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 02:54:09,193 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 02:54:09,193 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 02:54:09,193 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 02:54:09,193 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 02:54:09,193 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 02:54:09,194 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 02:54:09,194 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 02:54:09,194 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 02:54:09,194 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 02:54:09,194 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:54:09,195 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 02:54:09,195 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 02:54:09,195 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 02:54:09,195 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 02:54:09,195 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 02:54:09,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 02:54:09,196 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 02:54:09,196 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 02:54:09,196 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 02:54:09,196 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 02:54:09,196 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 02:54:09,197 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 02:54:09,197 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 02:54:09,197 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 02:54:09,197 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 02:54:09,197 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 02:54:09,197 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 02:54:09,197 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 02:54:09,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 02:54:09,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 02:54:09,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 02:54:09,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 02:54:09,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 02:54:09,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 02:54:09,199 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:54:09,199 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:54:09,199 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 02:54:09,199 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 02:54:09,199 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 02:54:09,199 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 02:54:09,200 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 02:54:09,200 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 02:54:09,200 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 02:54:09,200 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 02:54:09,200 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 02:54:09,200 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 02:54:09,201 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 02:54:09,201 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 02:54:09,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:54:09,201 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 02:54:09,201 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 02:54:09,201 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 02:54:09,202 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 02:54:09,202 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 02:54:09,202 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 02:54:09,202 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 02:54:09,202 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 02:54:09,202 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 02:54:09,202 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 02:54:09,203 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:54:09,203 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 02:54:09,203 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 02:54:09,203 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 02:54:09,203 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 02:54:09,203 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 02:54:09,203 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 02:54:09,204 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 02:54:09,204 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 02:54:09,204 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 02:54:09,204 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 02:54:09,204 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 02:54:09,205 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:54:09,205 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 02:54:09,205 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 02:54:09,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:54:09,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 02:54:09,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:54:09,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 02:54:09,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 02:54:09,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:54:09,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 02:54:09,206 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 02:54:09,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:54:09,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 02:54:09,207 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 02:54:09,207 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 02:54:09,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:54:09,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 02:54:09,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:54:10,316 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:54:10,316 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 02:54:10,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:54:10 BoogieIcfgContainer [2020-09-25 02:54:10,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:54:10,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:54:10,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:54:10,329 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:54:10,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:54:08" (1/3) ... [2020-09-25 02:54:10,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f866357 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:54:10, skipping insertion in model container [2020-09-25 02:54:10,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:54:09" (2/3) ... [2020-09-25 02:54:10,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f866357 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:54:10, skipping insertion in model container [2020-09-25 02:54:10,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:54:10" (3/3) ... [2020-09-25 02:54:10,333 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product50.cil.c [2020-09-25 02:54:10,344 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:54:10,355 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:54:10,375 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:54:10,405 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:54:10,405 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:54:10,406 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:54:10,406 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:54:10,406 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:54:10,406 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:54:10,406 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:54:10,406 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:54:10,434 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states. [2020-09-25 02:54:10,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 02:54:10,452 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:54:10,453 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 02:54:10,454 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:54:10,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:54:10,462 INFO L82 PathProgramCache]: Analyzing trace with hash -2015468822, now seen corresponding path program 1 times [2020-09-25 02:54:10,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:54:10,471 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [914368515] [2020-09-25 02:54:10,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:54:10,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:10,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:11,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:12,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:13,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:15,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:15,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 02:54:15,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 02:54:15,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-09-25 02:54:15,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:15,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 02:54:15,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 02:54:15,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 02:54:15,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-09-25 02:54:16,323 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:54:16,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:54:16,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:16,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:16,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:16,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:54:16,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:16,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-09-25 02:54:16,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:16,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:16,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:16,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 02:54:16,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:16,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:54:16,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:16,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:16,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:16,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:16,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:16,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:54:16,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:16,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:16,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:16,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:16,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:16,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:54:16,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:16,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:16,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:16,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:16,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:16,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:54:16,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:16,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:16,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:16,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:16,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:16,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:54:16,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:16,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:16,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:16,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:16,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:16,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 02:54:16,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:16,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:16,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:16,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:54:16,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:16,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:54:16,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:16,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:16,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:16,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:16,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:16,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:54:16,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:16,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:16,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:16,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:16,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:16,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 02:54:16,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:16,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:16,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:16,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:16,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:16,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:54:16,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:16,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:54:16,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:16,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:54:16,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 26 [2020-09-25 02:54:16,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 02:54:16,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:16,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:16,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:16,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:16,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:16,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:54:16,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:16,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:16,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:54:16,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:16,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:16,949 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 02:54:16,950 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [914368515] [2020-09-25 02:54:16,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:54:16,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 02:54:16,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098751496] [2020-09-25 02:54:16,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 02:54:16,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:54:16,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 02:54:16,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 02:54:16,984 INFO L87 Difference]: Start difference. First operand 322 states. Second operand 8 states. [2020-09-25 02:54:17,591 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:54:18,834 WARN L193 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-25 02:54:19,477 WARN L193 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 02:54:19,853 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:20,281 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:20,600 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:21,427 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:21,775 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:54:22,330 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:54:23,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:54:23,612 INFO L93 Difference]: Finished difference Result 673 states and 814 transitions. [2020-09-25 02:54:23,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 02:54:23,617 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 02:54:23,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:54:23,652 INFO L225 Difference]: With dead ends: 673 [2020-09-25 02:54:23,652 INFO L226 Difference]: Without dead ends: 451 [2020-09-25 02:54:23,664 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2020-09-25 02:54:23,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2020-09-25 02:54:23,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 395. [2020-09-25 02:54:23,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2020-09-25 02:54:23,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 435 transitions. [2020-09-25 02:54:23,811 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 435 transitions. Word has length 142 [2020-09-25 02:54:23,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:54:23,812 INFO L479 AbstractCegarLoop]: Abstraction has 395 states and 435 transitions. [2020-09-25 02:54:23,812 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 02:54:23,812 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 435 transitions. [2020-09-25 02:54:23,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 02:54:23,818 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:54:23,818 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] [2020-09-25 02:54:23,819 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:54:23,819 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:54:23,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:54:23,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1621046252, now seen corresponding path program 1 times [2020-09-25 02:54:23,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:54:23,820 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [356495716] [2020-09-25 02:54:23,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:54:23,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:23,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:24,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:24,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:28,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:28,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 02:54:28,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:54:28,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4422 [2020-09-25 02:54:28,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:28,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 02:54:28,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 02:54:28,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-25 02:54:28,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:28,730 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:54:28,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:54:28,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:28,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:29,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:29,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:54:29,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:29,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-09-25 02:54:29,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:29,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:29,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:29,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 02:54:29,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:29,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:54:29,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:29,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:29,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:29,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:29,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:29,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:54:29,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:29,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:29,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:29,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:29,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:29,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:54:29,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:29,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:29,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:29,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:29,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:29,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:54:29,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:29,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:29,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:29,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:29,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:29,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:54:29,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:29,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:29,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:29,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:29,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:29,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:54:29,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:29,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:29,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:29,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:54:29,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:29,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:54:29,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:29,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:29,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:29,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:29,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:29,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:54:29,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:29,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:29,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:29,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:54:29,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:29,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 02:54:29,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:29,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:29,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:29,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:54:29,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:29,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:54:29,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:29,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:29,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:29,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:54:29,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:29,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 02:54:29,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:29,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:29,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:29,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:54:29,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:29,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:54:29,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:29,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:29,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:29,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:54:29,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:29,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 02:54:29,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:29,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:29,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:29,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:29,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:29,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:54:29,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:29,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:29,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:29,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:54:29,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 02:54:29,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 02:54:29,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:29,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:29,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:29,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:29,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:29,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 02:54:29,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:29,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:54:29,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:29,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:54:29,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:29,254 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 02:54:29,255 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [356495716] [2020-09-25 02:54:29,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:54:29,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 02:54:29,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500656805] [2020-09-25 02:54:29,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 02:54:29,260 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:54:29,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 02:54:29,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 02:54:29,261 INFO L87 Difference]: Start difference. First operand 395 states and 435 transitions. Second operand 10 states. [2020-09-25 02:54:29,826 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:54:31,058 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:54:31,422 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:54:31,788 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:32,148 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 02:54:32,465 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:54:33,171 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:54:33,479 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:33,887 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:35,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:54:35,390 INFO L93 Difference]: Finished difference Result 1082 states and 1354 transitions. [2020-09-25 02:54:35,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 02:54:35,391 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 161 [2020-09-25 02:54:35,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:54:35,401 INFO L225 Difference]: With dead ends: 1082 [2020-09-25 02:54:35,402 INFO L226 Difference]: Without dead ends: 797 [2020-09-25 02:54:35,404 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-25 02:54:35,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2020-09-25 02:54:35,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 573. [2020-09-25 02:54:35,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 573 states. [2020-09-25 02:54:35,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 661 transitions. [2020-09-25 02:54:35,519 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 661 transitions. Word has length 161 [2020-09-25 02:54:35,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:54:35,520 INFO L479 AbstractCegarLoop]: Abstraction has 573 states and 661 transitions. [2020-09-25 02:54:35,520 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 02:54:35,520 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 661 transitions. [2020-09-25 02:54:35,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-09-25 02:54:35,525 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:54:35,526 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:54:35,526 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:54:35,527 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:54:35,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:54:35,527 INFO L82 PathProgramCache]: Analyzing trace with hash -304283484, now seen corresponding path program 1 times [2020-09-25 02:54:35,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:54:35,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1351282343] [2020-09-25 02:54:35,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:54:35,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:35,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:35,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:35,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:35,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:36,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:36,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:36,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:40,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:40,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 305 [2020-09-25 02:54:40,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 02:54:40,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 02:54:40,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:40,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:54:40,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-09-25 02:54:40,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 02:54:40,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:40,908 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:54:40,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:54:40,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:40,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:41,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:41,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:54:41,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:41,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-25 02:54:41,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:41,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:41,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:41,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:41,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:41,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:54:41,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:41,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:41,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:41,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:41,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:41,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:54:41,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:41,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:41,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:41,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:41,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:41,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:54:41,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:41,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:41,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:41,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:41,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:41,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:54:41,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:41,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:41,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:41,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:41,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:41,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:54:41,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:41,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:41,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:41,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:41,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:41,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:54:41,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:41,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:41,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:41,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:41,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:41,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:54:41,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:41,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:41,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:41,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:41,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:41,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:54:41,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:41,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:41,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:41,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:41,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:41,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 02:54:41,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:41,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:41,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:41,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:54:41,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:41,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:54:41,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:41,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:41,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:41,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 02:54:41,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:41,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 02:54:41,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:41,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:41,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:41,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:54:41,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:41,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:54:41,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:41,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:41,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:41,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:54:41,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:41,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 02:54:41,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:41,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:41,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:41,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:41,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:54:41,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:54:41,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 02:54:41,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:41,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:41,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:41,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 02:54:41,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:41,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:41,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:41,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:41,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:41,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 02:54:41,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:41,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:54:41,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:41,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:41,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:41,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:41,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:41,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:41,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:41,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:41,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:41,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:41,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:41,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:54:41,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:41,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:41,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:41,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:41,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:41,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 02:54:41,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:41,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:41,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:41,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:54:41,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:41,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 02:54:41,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:41,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:54:41,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 02:54:41,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 02:54:41,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:41,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:41,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:41,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:41,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:41,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 02:54:41,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:41,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 02:54:41,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:41,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:54:41,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:41,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:54:41,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:41,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:41,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:41,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:41,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:41,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:41,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:41,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:54:41,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:41,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:54:41,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:41,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:54:41,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:41,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-25 02:54:41,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:41,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:41,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:41,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:41,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 02:54:41,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:54:41,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 02:54:41,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:41,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:54:41,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 02:54:41,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:54:41,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:41,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:41,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:41,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:41,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:41,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 02:54:41,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:41,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 02:54:41,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:41,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:54:41,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 02:54:41,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:54:41,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:41,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:41,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:41,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:41,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:41,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:54:41,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:41,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 02:54:41,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:41,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:54:41,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:41,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 02:54:41,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:41,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:54:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:41,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:41,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:41,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:54:41,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:41,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:54:41,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:41,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:41,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:41,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:41,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:41,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:54:41,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:41,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:41,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:41,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:54:41,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:41,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:54:41,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:41,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:41,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 02:54:41,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:41,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:41,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-09-25 02:54:41,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:41,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:41,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:41,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:41,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:41,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:54:41,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:41,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:41,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:54:41,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:41,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:41,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-09-25 02:54:41,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:41,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:41,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:41,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:41,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:41,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:54:41,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:41,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:41,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:54:41,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:41,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:42,072 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-25 02:54:42,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1351282343] [2020-09-25 02:54:42,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:54:42,073 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-25 02:54:42,073 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986481824] [2020-09-25 02:54:42,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-25 02:54:42,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:54:42,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-25 02:54:42,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2020-09-25 02:54:42,076 INFO L87 Difference]: Start difference. First operand 573 states and 661 transitions. Second operand 18 states. [2020-09-25 02:54:42,768 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:54:43,842 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:54:44,342 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:44,659 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:45,027 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:45,389 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:45,687 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:45,995 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:46,310 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:46,727 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:47,106 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:47,473 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:47,949 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:54:48,316 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:54:48,675 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 02:54:49,060 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:54:49,447 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:49,783 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:54:50,117 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:54:50,425 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:54:50,767 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 02:54:51,189 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:51,667 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:54:52,034 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:55,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:54:55,701 INFO L93 Difference]: Finished difference Result 1542 states and 2048 transitions. [2020-09-25 02:54:55,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-09-25 02:54:55,701 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 248 [2020-09-25 02:54:55,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:54:55,714 INFO L225 Difference]: With dead ends: 1542 [2020-09-25 02:54:55,714 INFO L226 Difference]: Without dead ends: 1079 [2020-09-25 02:54:55,717 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 996 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=708, Invalid=3074, Unknown=0, NotChecked=0, Total=3782 [2020-09-25 02:54:55,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2020-09-25 02:54:55,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 589. [2020-09-25 02:54:55,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2020-09-25 02:54:55,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 671 transitions. [2020-09-25 02:54:55,817 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 671 transitions. Word has length 248 [2020-09-25 02:54:55,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:54:55,818 INFO L479 AbstractCegarLoop]: Abstraction has 589 states and 671 transitions. [2020-09-25 02:54:55,818 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-25 02:54:55,818 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 671 transitions. [2020-09-25 02:54:55,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-09-25 02:54:55,822 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:54:55,822 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:54:55,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:54:55,823 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:54:55,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:54:55,823 INFO L82 PathProgramCache]: Analyzing trace with hash -2107246062, now seen corresponding path program 1 times [2020-09-25 02:54:55,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:54:55,824 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [110409276] [2020-09-25 02:54:55,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:54:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:55,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:56,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:56,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:56,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:56,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking...