/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 --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 interpolation-heuristic=FIRST --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_spec3_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:09:52,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:09:52,056 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:09:52,100 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:09:52,102 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:09:52,113 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:09:52,115 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:09:52,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:09:52,121 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:09:52,125 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:09:52,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:09:52,128 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:09:52,129 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:09:52,132 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:09:52,134 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:09:52,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:09:52,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:09:52,141 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:09:52,142 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:09:52,153 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:09:52,155 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:09:52,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:09:52,158 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:09:52,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:09:52,162 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:09:52,162 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:09:52,162 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:09:52,169 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:09:52,169 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:09:52,171 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:09:52,171 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:09:52,172 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:09:52,173 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:09:52,174 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:09:52,175 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:09:52,175 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:09:52,176 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:09:52,176 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:09:52,177 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:09:52,178 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:09:52,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:09:52,181 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 [2020-09-21 11:09:52,229 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:09:52,230 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:09:52,232 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:09:52,232 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:09:52,233 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:09:52,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:09:52,233 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:09:52,233 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:09:52,234 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:09:52,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:09:52,235 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:09:52,235 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:09:52,235 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:09:52,236 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:09:52,236 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:09:52,236 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:09:52,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:09:52,237 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:09:52,237 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:09:52,237 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:09:52,237 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:09:52,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:09:52,238 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:09:52,238 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:09:52,238 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:09:52,238 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:09:52,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:09:52,239 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:09:52,239 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:09:52,239 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.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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:09:52,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:09:52,740 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:09:52,746 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:09:52,749 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:09:52,750 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:09:52,751 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product19.cil.c [2020-09-21 11:09:52,837 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee26d2cc8/f8d7190026e24ab8b1265b04bf4a99f7/FLAGcb489b6a4 [2020-09-21 11:09:53,525 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:09:53,526 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product19.cil.c [2020-09-21 11:09:53,542 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee26d2cc8/f8d7190026e24ab8b1265b04bf4a99f7/FLAGcb489b6a4 [2020-09-21 11:09:53,754 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee26d2cc8/f8d7190026e24ab8b1265b04bf4a99f7 [2020-09-21 11:09:53,767 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:09:53,772 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:09:53,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:09:53,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:09:53,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:09:53,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:09:53" (1/1) ... [2020-09-21 11:09:53,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2970dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:53, skipping insertion in model container [2020-09-21 11:09:53,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:09:53" (1/1) ... [2020-09-21 11:09:53,797 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:09:53,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:09:54,321 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:09:54,338 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:09:54,464 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:09:54,503 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:09:54,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:54 WrapperNode [2020-09-21 11:09:54,504 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:09:54,504 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:09:54,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:09:54,505 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:09:54,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:54" (1/1) ... [2020-09-21 11:09:54,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:54" (1/1) ... [2020-09-21 11:09:54,551 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:54" (1/1) ... [2020-09-21 11:09:54,553 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:54" (1/1) ... [2020-09-21 11:09:54,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:54" (1/1) ... [2020-09-21 11:09:54,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:54" (1/1) ... [2020-09-21 11:09:54,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:54" (1/1) ... [2020-09-21 11:09:54,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:09:54,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:09:54,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:09:54,621 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:09:54,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:54" (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 [2020-09-21 11:09:54,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:09:54,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:09:54,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:09:54,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:09:54,742 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:09:54,743 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:09:54,743 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:09:54,743 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:09:54,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:09:54,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:09:54,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:09:54,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:09:54,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:09:54,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:09:54,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:09:54,747 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:09:54,748 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:09:54,748 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:09:54,748 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:09:54,749 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:09:54,749 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:09:54,749 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:09:54,749 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:09:54,750 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:09:54,750 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:09:54,751 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:09:54,751 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-21 11:09:54,751 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:09:54,752 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:09:54,752 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 11:09:54,752 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:09:54,752 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:09:54,752 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:09:54,753 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:09:54,753 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:09:54,753 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:09:54,753 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-21 11:09:54,753 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-21 11:09:54,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:09:54,754 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:09:54,754 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:09:54,754 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:09:54,754 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:09:54,756 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:09:54,756 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:09:54,756 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:09:54,756 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:09:54,756 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:09:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:09:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:09:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:09:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:09:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:09:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:09:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:09:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:09:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:09:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:09:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:09:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:09:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:09:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:09:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:09:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:09:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:09:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:09:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:09:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:09:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:09:54,762 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:09:54,762 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:09:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:09:54,764 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:09:54,764 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:09:54,764 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:09:54,765 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:09:54,765 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:09:54,765 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:09:54,766 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:09:54,766 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-21 11:09:54,766 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-21 11:09:54,766 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:09:54,766 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:09:54,766 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:09:54,767 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 11:09:54,767 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-21 11:09:54,767 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:09:54,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:09:54,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:09:54,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:09:55,978 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:09:55,978 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:09:55,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:09:55 BoogieIcfgContainer [2020-09-21 11:09:55,985 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:09:55,986 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:09:55,986 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:09:55,990 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:09:55,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:09:53" (1/3) ... [2020-09-21 11:09:55,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@229d267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:09:55, skipping insertion in model container [2020-09-21 11:09:55,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:54" (2/3) ... [2020-09-21 11:09:55,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@229d267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:09:55, skipping insertion in model container [2020-09-21 11:09:55,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:09:55" (3/3) ... [2020-09-21 11:09:55,995 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product19.cil.c [2020-09-21 11:09:56,007 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:09:56,018 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:09:56,038 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:09:56,066 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:09:56,066 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:09:56,066 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:09:56,067 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:09:56,067 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:09:56,067 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:09:56,067 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:09:56,067 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:09:56,094 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states. [2020-09-21 11:09:56,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 11:09:56,106 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:56,107 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] [2020-09-21 11:09:56,108 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:56,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:56,116 INFO L82 PathProgramCache]: Analyzing trace with hash 506531791, now seen corresponding path program 1 times [2020-09-21 11:09:56,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:56,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1067114327] [2020-09-21 11:09:56,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:56,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:56,429 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:56,429 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:56,429 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:56,430 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:56,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-21 11:09:56,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:56,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:09:56,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:56,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:56,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:09:56,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:56,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:56,888 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:56,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:56,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:56,904 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:56,905 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:56,905 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:56,906 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:56,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:56,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:56,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:09:56,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:56,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:56,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:56,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:56,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:57,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:57,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:57,020 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:57,020 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:57,020 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:57,021 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:57,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:57,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:57,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:09:57,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:57,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:57,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:57,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:57,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:57,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:57,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:57,030 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:57,030 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:57,031 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:57,031 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:57,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:57,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:57,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:57,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:57,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:57,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:57,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:57,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:57,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:57,039 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:57,040 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:57,040 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:57,040 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:57,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:57,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:57,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:09:57,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:57,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:57,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:57,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:57,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:57,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:57,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:57,049 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:57,049 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:57,049 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:57,050 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:57,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:57,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:57,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:09:57,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:57,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:57,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:57,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:57,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:57,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:09:57,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:57,059 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:57,059 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:57,060 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:57,060 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:57,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:57,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:57,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:57,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:57,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:57,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:57,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:57,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:57,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:09:57,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:57,071 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:57,071 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:57,072 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:57,072 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:57,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:57,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:57,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:57,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:57,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:57,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:57,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:57,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:57,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:09:57,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:57,080 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:57,080 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:57,080 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:57,081 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:57,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:57,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:57,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:57,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:57,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:57,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:57,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:57,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:57,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:09:57,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1067114327] [2020-09-21 11:09:57,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:09:57,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:09:57,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220124926] [2020-09-21 11:09:57,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:09:57,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:57,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:09:57,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:09:57,142 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 3 states. [2020-09-21 11:09:58,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:09:58,307 INFO L93 Difference]: Finished difference Result 273 states and 360 transitions. [2020-09-21 11:09:58,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:09:58,310 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-09-21 11:09:58,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:09:58,327 INFO L225 Difference]: With dead ends: 273 [2020-09-21 11:09:58,328 INFO L226 Difference]: Without dead ends: 148 [2020-09-21 11:09:58,333 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:09:58,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-09-21 11:09:58,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 116. [2020-09-21 11:09:58,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-09-21 11:09:58,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 136 transitions. [2020-09-21 11:09:58,434 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 136 transitions. Word has length 52 [2020-09-21 11:09:58,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:09:58,434 INFO L479 AbstractCegarLoop]: Abstraction has 116 states and 136 transitions. [2020-09-21 11:09:58,435 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:09:58,435 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 136 transitions. [2020-09-21 11:09:58,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-21 11:09:58,441 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:58,441 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] [2020-09-21 11:09:58,441 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:09:58,441 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:58,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:58,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1226284601, now seen corresponding path program 1 times [2020-09-21 11:09:58,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:58,443 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [277203069] [2020-09-21 11:09:58,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:58,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:58,550 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:58,551 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:58,551 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:58,551 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:58,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-21 11:09:58,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:58,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:09:58,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:58,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:58,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:09:58,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:09:58,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:58,874 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:58,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:58,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:58,883 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:58,884 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:58,884 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:58,884 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:58,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:58,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:58,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:09:58,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:58,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:58,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:58,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:58,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:58,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:58,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:58,923 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:58,924 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:58,924 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:58,924 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:58,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:58,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:58,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:58,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:58,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:58,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:58,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:58,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:58,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:58,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:58,929 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:58,929 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:58,929 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:58,930 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:58,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:58,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:58,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:58,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:58,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:58,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:58,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:58,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:58,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:58,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:58,934 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:58,934 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:58,935 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:58,935 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:58,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:58,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:58,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:58,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:58,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:58,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:58,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:58,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:58,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:58,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:58,940 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:58,941 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:58,941 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:58,941 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:58,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:58,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:58,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:58,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:58,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:58,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:58,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:58,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:58,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:09:58,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:58,946 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:58,946 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:58,946 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:58,946 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:58,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:58,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:58,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:58,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:58,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:58,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:58,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:58,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:58,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:09:58,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:58,952 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:58,952 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:58,952 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:58,953 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:58,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:58,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:58,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:58,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:58,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:58,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:58,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:58,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:58,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:09:58,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:58,965 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:58,965 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:58,966 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:58,966 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:58,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:58,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:58,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:09:58,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:58,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:58,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:58,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:58,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:58,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:09:58,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [277203069] [2020-09-21 11:09:58,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:09:58,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:09:58,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730168280] [2020-09-21 11:09:58,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:09:58,990 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:58,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:09:58,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:09:58,992 INFO L87 Difference]: Start difference. First operand 116 states and 136 transitions. Second operand 4 states. [2020-09-21 11:09:59,443 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:10:00,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:00,221 INFO L93 Difference]: Finished difference Result 200 states and 243 transitions. [2020-09-21 11:10:00,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:10:00,222 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-09-21 11:10:00,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:00,226 INFO L225 Difference]: With dead ends: 200 [2020-09-21 11:10:00,226 INFO L226 Difference]: Without dead ends: 132 [2020-09-21 11:10:00,228 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:10:00,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-09-21 11:10:00,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 107. [2020-09-21 11:10:00,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-09-21 11:10:00,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 124 transitions. [2020-09-21 11:10:00,263 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 124 transitions. Word has length 53 [2020-09-21 11:10:00,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:00,264 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 124 transitions. [2020-09-21 11:10:00,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:10:00,264 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 124 transitions. [2020-09-21 11:10:00,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 11:10:00,266 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:00,267 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] [2020-09-21 11:10:00,267 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:10:00,267 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:00,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:00,268 INFO L82 PathProgramCache]: Analyzing trace with hash -860632419, now seen corresponding path program 1 times [2020-09-21 11:10:00,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:00,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [25329349] [2020-09-21 11:10:00,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:00,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:00,652 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:10:00,653 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:00,653 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:00,653 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:00,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-21 11:10:00,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:00,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 327 [2020-09-21 11:10:00,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:00,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:10:00,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:00,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 11:10:00,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:01,001 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:01,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:01,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:01,082 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:01,082 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:01,083 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:01,083 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:01,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:01,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:01,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-21 11:10:01,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:01,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:01,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:01,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:10:01,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:01,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:01,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:01,125 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:01,125 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:01,126 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:01,126 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:01,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:01,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:01,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:01,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:01,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:01,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:01,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:01,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:01,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:01,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:01,131 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:01,132 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:01,132 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:01,132 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:01,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:01,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:01,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:01,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:01,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:01,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:01,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:01,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:01,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:01,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:01,138 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:01,138 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:01,139 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:01,139 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:01,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:01,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:01,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:01,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:01,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:01,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:01,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:01,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:01,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:01,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:01,145 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:01,146 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:01,146 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:01,146 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:01,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:01,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:01,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:01,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:01,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:01,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:01,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:01,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:01,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:10:01,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:01,182 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:01,182 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:01,183 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:01,187 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:01,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:01,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:01,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:10:01,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:01,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:01,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:01,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:01,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:01,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:10:01,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:01,192 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:01,192 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:01,192 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:01,193 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:01,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:01,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:01,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:01,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:01,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:01,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:01,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:01,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:01,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:10:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:01,199 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:01,199 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:01,199 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:01,199 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:01,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:01,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:01,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:01,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:01,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:01,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:01,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:01,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:01,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:10:01,209 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [25329349] [2020-09-21 11:10:01,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:01,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:10:01,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758459137] [2020-09-21 11:10:01,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:10:01,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:01,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:10:01,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:10:01,212 INFO L87 Difference]: Start difference. First operand 107 states and 124 transitions. Second operand 4 states. [2020-09-21 11:10:01,578 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:03,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:03,028 INFO L93 Difference]: Finished difference Result 308 states and 380 transitions. [2020-09-21 11:10:03,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:10:03,029 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2020-09-21 11:10:03,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:03,033 INFO L225 Difference]: With dead ends: 308 [2020-09-21 11:10:03,038 INFO L226 Difference]: Without dead ends: 225 [2020-09-21 11:10:03,040 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:10:03,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2020-09-21 11:10:03,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 184. [2020-09-21 11:10:03,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-09-21 11:10:03,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 219 transitions. [2020-09-21 11:10:03,116 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 219 transitions. Word has length 57 [2020-09-21 11:10:03,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:03,117 INFO L479 AbstractCegarLoop]: Abstraction has 184 states and 219 transitions. [2020-09-21 11:10:03,117 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:10:03,117 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 219 transitions. [2020-09-21 11:10:03,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-21 11:10:03,120 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:03,120 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] [2020-09-21 11:10:03,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:10:03,121 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:03,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:03,121 INFO L82 PathProgramCache]: Analyzing trace with hash -792004887, now seen corresponding path program 1 times [2020-09-21 11:10:03,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:03,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1824540227] [2020-09-21 11:10:03,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:03,553 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:03,553 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:03,553 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:03,554 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:03,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-21 11:10:03,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:03,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 384 [2020-09-21 11:10:03,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:03,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:10:03,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:03,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-21 11:10:03,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:03,907 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:03,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:03,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:03,982 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:03,983 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:03,983 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:03,984 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:03,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:03,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:03,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-21 11:10:03,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:03,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:03,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:03,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:10:03,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:04,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:04,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:04,024 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:04,024 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:04,024 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:04,025 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:04,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:04,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:04,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:04,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:04,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:04,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:04,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:04,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:04,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:04,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:04,030 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:04,030 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:04,030 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:04,031 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:04,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:04,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:04,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:04,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:04,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:04,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:04,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:04,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:04,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:04,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:04,036 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:04,036 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:04,036 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:04,037 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:04,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:04,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:04,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:04,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:04,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:04,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:04,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:04,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:04,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:04,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:04,043 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:04,043 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:04,044 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:04,044 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:04,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:04,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:04,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:04,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:04,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:04,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:04,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:04,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:04,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:10:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:04,068 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:04,068 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:04,069 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:04,069 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:04,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:10:04,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:04,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:04,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:04,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:04,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:04,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:10:04,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:04,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:10:04,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:04,146 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:04,146 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:04,147 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:04,147 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:04,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:04,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:04,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:04,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:04,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:04,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:04,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:04,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:04,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:10:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:04,156 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:04,157 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:04,157 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:04,157 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:04,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:04,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:04,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:10:04,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:04,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:10:04,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:04,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:04,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:04,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 11:10:04,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:04,179 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:04,179 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:04,180 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:04,180 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:04,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:04,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:04,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:04,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:04,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:04,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:04,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:04,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:04,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:10:04,200 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1824540227] [2020-09-21 11:10:04,200 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:04,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:10:04,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922729833] [2020-09-21 11:10:04,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:10:04,202 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:04,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:10:04,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:10:04,203 INFO L87 Difference]: Start difference. First operand 184 states and 219 transitions. Second operand 8 states. [2020-09-21 11:10:04,727 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:06,253 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:10:06,632 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:10:06,952 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:10:07,291 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:07,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:07,991 INFO L93 Difference]: Finished difference Result 564 states and 736 transitions. [2020-09-21 11:10:07,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:10:07,994 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-09-21 11:10:07,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:07,999 INFO L225 Difference]: With dead ends: 564 [2020-09-21 11:10:07,999 INFO L226 Difference]: Without dead ends: 404 [2020-09-21 11:10:08,001 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:10:08,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2020-09-21 11:10:08,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 343. [2020-09-21 11:10:08,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2020-09-21 11:10:08,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 419 transitions. [2020-09-21 11:10:08,085 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 419 transitions. Word has length 63 [2020-09-21 11:10:08,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:08,086 INFO L479 AbstractCegarLoop]: Abstraction has 343 states and 419 transitions. [2020-09-21 11:10:08,086 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:10:08,086 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 419 transitions. [2020-09-21 11:10:08,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-21 11:10:08,090 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:08,090 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] [2020-09-21 11:10:08,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:10:08,090 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:08,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:08,091 INFO L82 PathProgramCache]: Analyzing trace with hash -328985137, now seen corresponding path program 1 times [2020-09-21 11:10:08,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:08,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1685220359] [2020-09-21 11:10:08,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:08,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:08,494 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:08,494 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:08,494 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:08,495 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:08,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-09-21 11:10:08,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:08,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 362 [2020-09-21 11:10:08,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:08,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 11:10:08,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:08,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-21 11:10:08,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:08,843 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:08,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:08,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:08,930 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:08,930 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:08,931 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:08,931 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:08,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:08,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:08,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-21 11:10:08,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:08,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:08,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:08,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:10:08,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:08,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:08,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:08,986 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:08,986 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:08,987 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:08,987 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:08,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:08,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:08,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:08,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:08,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:08,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:08,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:08,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:08,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:08,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:08,995 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:08,995 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:08,995 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:08,996 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:08,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:08,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:08,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:08,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:08,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:08,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:08,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:08,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:09,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:09,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:09,003 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:09,003 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:09,003 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:09,004 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:09,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:09,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:09,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:09,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:09,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:09,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:09,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:09,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:09,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:09,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:09,012 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:09,013 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:09,013 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:09,013 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:09,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:09,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:09,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:09,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:09,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:09,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:09,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:09,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:09,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:10:09,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:09,042 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:09,042 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:09,043 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:09,043 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:09,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:10:09,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:09,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:10:09,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:09,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:09,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:09,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:10:09,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:09,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:10:09,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:09,063 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:09,065 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:09,066 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:09,066 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:09,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:09,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:09,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:10:09,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:09,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:09,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:09,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:09,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:09,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 11:10:09,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:09,072 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:09,072 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:09,073 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:09,073 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:09,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:09,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:09,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:09,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:09,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:09,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:09,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:09,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:09,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 11:10:09,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:09,078 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:09,079 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:09,079 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:09,079 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:09,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:09,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:09,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:09,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:09,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:09,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:09,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:09,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:09,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-21 11:10:09,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:09,085 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:09,086 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:09,086 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:09,086 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:09,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:09,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:09,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:09,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:09,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:09,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:09,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:09,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:09,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:10:09,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1685220359] [2020-09-21 11:10:09,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:09,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 11:10:09,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589281539] [2020-09-21 11:10:09,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 11:10:09,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:09,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 11:10:09,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:10:09,110 INFO L87 Difference]: Start difference. First operand 343 states and 419 transitions. Second operand 6 states. [2020-09-21 11:10:09,615 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:10,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:10,469 INFO L93 Difference]: Finished difference Result 569 states and 721 transitions. [2020-09-21 11:10:10,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 11:10:10,469 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2020-09-21 11:10:10,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:10,472 INFO L225 Difference]: With dead ends: 569 [2020-09-21 11:10:10,472 INFO L226 Difference]: Without dead ends: 250 [2020-09-21 11:10:10,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:10:10,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-09-21 11:10:10,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 233. [2020-09-21 11:10:10,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-09-21 11:10:10,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 266 transitions. [2020-09-21 11:10:10,523 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 266 transitions. Word has length 67 [2020-09-21 11:10:10,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:10,524 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 266 transitions. [2020-09-21 11:10:10,524 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 11:10:10,524 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 266 transitions. [2020-09-21 11:10:10,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-21 11:10:10,526 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:10,526 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] [2020-09-21 11:10:10,526 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:10:10,526 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:10,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:10,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1802868975, now seen corresponding path program 1 times [2020-09-21 11:10:10,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:10,527 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1841977084] [2020-09-21 11:10:10,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:10,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:10:10,590 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:10:10,590 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:10:10,595 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:10:10,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:10:10 BoogieIcfgContainer [2020-09-21 11:10:10,621 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:10:10,623 INFO L168 Benchmark]: Toolchain (without parser) took 16854.52 ms. Allocated memory was 137.9 MB in the beginning and 514.9 MB in the end (delta: 377.0 MB). Free memory was 100.0 MB in the beginning and 355.6 MB in the end (delta: -255.6 MB). Peak memory consumption was 121.4 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:10,624 INFO L168 Benchmark]: CDTParser took 0.81 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.0 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-09-21 11:10:10,625 INFO L168 Benchmark]: CACSL2BoogieTranslator took 728.05 ms. Allocated memory was 137.9 MB in the beginning and 200.3 MB in the end (delta: 62.4 MB). Free memory was 99.5 MB in the beginning and 167.9 MB in the end (delta: -68.4 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:10,626 INFO L168 Benchmark]: Boogie Preprocessor took 115.41 ms. Allocated memory is still 200.3 MB. Free memory was 167.9 MB in the beginning and 163.8 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:10,627 INFO L168 Benchmark]: RCFGBuilder took 1364.74 ms. Allocated memory was 200.3 MB in the beginning and 230.7 MB in the end (delta: 30.4 MB). Free memory was 163.8 MB in the beginning and 194.3 MB in the end (delta: -30.4 MB). Peak memory consumption was 86.1 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:10,628 INFO L168 Benchmark]: TraceAbstraction took 14635.08 ms. Allocated memory was 230.7 MB in the beginning and 514.9 MB in the end (delta: 284.2 MB). Free memory was 194.3 MB in the beginning and 355.6 MB in the end (delta: -161.3 MB). Peak memory consumption was 122.8 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:10,632 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.0 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 728.05 ms. Allocated memory was 137.9 MB in the beginning and 200.3 MB in the end (delta: 62.4 MB). Free memory was 99.5 MB in the beginning and 167.9 MB in the end (delta: -68.4 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.41 ms. Allocated memory is still 200.3 MB. Free memory was 167.9 MB in the beginning and 163.8 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1364.74 ms. Allocated memory was 200.3 MB in the beginning and 230.7 MB in the end (delta: 30.4 MB). Free memory was 163.8 MB in the beginning and 194.3 MB in the end (delta: -30.4 MB). Peak memory consumption was 86.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14635.08 ms. Allocated memory was 230.7 MB in the beginning and 514.9 MB in the end (delta: 284.2 MB). Free memory was 194.3 MB in the beginning and 355.6 MB in the end (delta: -161.3 MB). Peak memory consumption was 122.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L293] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L490] int cleanupTimeShifts = 4; [L594] int waterLevel = 1; [L595] int methaneLevelCritical = 0; [L753] int pumpRunning = 0; [L754] int systemActive = 1; [L568] int retValue_acc ; [L569] int tmp ; [L573] FCALL select_helpers() [L574] FCALL select_features() [L575] CALL, EXPR valid_product() [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); [L575] RET, EXPR valid_product() [L575] tmp = valid_product() [L577] COND TRUE \read(tmp) [L579] FCALL setup() [L580] CALL runTest() [L562] CALL test() [L685] int splverifierCounter ; [L686] int tmp ; [L687] int tmp___0 ; [L688] int tmp___1 ; [L689] int tmp___2 ; [L692] splverifierCounter = 0 [L694] COND TRUE 1 [L696] COND TRUE splverifierCounter < 4 [L702] tmp = __VERIFIER_nondet_int() [L704] COND TRUE \read(tmp) [L706] CALL waterRise() [L612] COND TRUE waterLevel < 2 [L613] waterLevel = waterLevel + 1 [L706] RET waterRise() [L712] tmp___0 = __VERIFIER_nondet_int() [L714] COND FALSE !(\read(tmp___0)) [L722] tmp___2 = __VERIFIER_nondet_int() [L724] COND FALSE !(\read(tmp___2)) [L728] tmp___1 = __VERIFIER_nondet_int() [L730] COND TRUE \read(tmp___1) [L732] CALL stopSystem() [L908] COND FALSE !(\read(pumpRunning)) [L915] systemActive = 0 [L732] RET stopSystem() [L739] CALL timeShift() [L760] COND FALSE !(\read(pumpRunning)) [L767] COND FALSE !(\read(systemActive)) [L775] CALL __utac_acc__Specification3_spec__1() [L91] int tmp ; [L92] int tmp___0 ; [L93] int tmp___1 ; [L97] CALL, EXPR isMethaneLevelCritical() [L633] int retValue_acc ; [L636] retValue_acc = methaneLevelCritical [L637] return (retValue_acc); [L97] RET, EXPR isMethaneLevelCritical() [L97] tmp = isMethaneLevelCritical() [L99] COND FALSE !(\read(tmp)) [L103] CALL, EXPR getWaterLevel() [L665] int retValue_acc ; [L668] retValue_acc = waterLevel [L669] return (retValue_acc); [L103] RET, EXPR getWaterLevel() [L103] tmp___0 = getWaterLevel() [L105] COND TRUE tmp___0 == 2 [L107] CALL, EXPR isPumpRunning() [L841] int retValue_acc ; [L844] retValue_acc = pumpRunning [L845] return (retValue_acc); [L107] RET, EXPR isPumpRunning() [L107] tmp___1 = isPumpRunning() [L109] COND FALSE !(\read(tmp___1)) [L113] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 223 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 9.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 508 SDtfs, 677 SDslu, 259 SDs, 0 SdLazy, 1231 SolverSat, 410 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=343occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 176 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 359 NumberOfCodeBlocks, 359 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 287 ConstructedInterpolants, 0 QuantifiedInterpolants, 81118 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...