/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:58:26,541 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:58:26,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:58:26,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:58:26,570 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:58:26,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:58:26,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:58:26,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:58:26,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:58:26,577 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:58:26,578 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:58:26,579 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:58:26,580 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:58:26,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:58:26,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:58:26,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:58:26,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:58:26,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:58:26,587 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:58:26,589 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:58:26,591 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:58:26,592 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:58:26,593 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:58:26,594 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:58:26,600 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:58:26,600 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:58:26,600 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:58:26,602 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:58:26,602 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:58:26,603 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:58:26,604 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:58:26,605 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:58:26,606 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:58:26,610 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:58:26,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:58:26,611 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:58:26,612 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:58:26,613 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:58:26,613 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:58:26,614 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:58:26,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:58:26,617 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 02:58:26,676 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:58:26,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:58:26,678 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:58:26,678 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:58:26,679 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:58:26,679 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:58:26,679 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:58:26,679 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:58:26,679 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:58:26,680 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:58:26,680 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:58:26,680 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:58:26,680 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:58:26,680 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:58:26,681 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:58:26,682 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:58:26,682 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:58:26,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:58:26,682 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:58:26,682 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:58:26,683 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:58:26,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:58:26,683 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:58:26,683 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:58:26,684 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:58:26,684 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:58:26,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:58:26,684 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:58:26,684 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:58:26,684 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; [2020-09-25 02:58:27,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:58:27,195 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:58:27,199 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:58:27,201 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:58:27,201 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:58:27,203 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c [2020-09-25 02:58:27,289 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bd56ee3bd/601625428bf94ee19d55ad05bb360fe0/FLAG59f383fdb [2020-09-25 02:58:27,863 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:58:27,864 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product11.cil.c [2020-09-25 02:58:27,877 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bd56ee3bd/601625428bf94ee19d55ad05bb360fe0/FLAG59f383fdb [2020-09-25 02:58:28,147 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bd56ee3bd/601625428bf94ee19d55ad05bb360fe0 [2020-09-25 02:58:28,159 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:58:28,165 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:58:28,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:58:28,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:58:28,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:58:28,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:58:28" (1/1) ... [2020-09-25 02:58:28,176 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fa7080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:28, skipping insertion in model container [2020-09-25 02:58:28,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:58:28" (1/1) ... [2020-09-25 02:58:28,186 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:58:28,257 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:58:28,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:58:28,796 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:58:28,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:58:28,908 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:58:28,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:28 WrapperNode [2020-09-25 02:58:28,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:58:28,910 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:58:28,910 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:58:28,910 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:58:28,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:28" (1/1) ... [2020-09-25 02:58:28,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:28" (1/1) ... [2020-09-25 02:58:28,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:28" (1/1) ... [2020-09-25 02:58:28,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:28" (1/1) ... [2020-09-25 02:58:28,978 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:28" (1/1) ... [2020-09-25 02:58:28,989 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:28" (1/1) ... [2020-09-25 02:58:28,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:28" (1/1) ... [2020-09-25 02:58:29,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:58:29,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:58:29,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:58:29,004 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:58:29,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:28" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:58:29,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:58:29,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:58:29,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 02:58:29,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 02:58:29,081 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 02:58:29,081 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 02:58:29,081 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 02:58:29,081 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 02:58:29,082 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:58:29,082 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 02:58:29,082 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 02:58:29,082 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 02:58:29,082 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 02:58:29,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 02:58:29,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 02:58:29,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 02:58:29,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 02:58:29,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 02:58:29,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 02:58:29,085 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 02:58:29,086 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 02:58:29,086 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-25 02:58:29,086 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 02:58:29,086 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 02:58:29,086 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 02:58:29,087 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 02:58:29,089 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 02:58:29,089 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 02:58:29,089 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 02:58:29,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 02:58:29,090 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 02:58:29,090 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 02:58:29,090 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 02:58:29,090 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 02:58:29,090 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 02:58:29,090 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 02:58:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:58:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:58:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 02:58:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 02:58:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 02:58:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 02:58:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 02:58:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 02:58:29,092 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 02:58:29,092 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 02:58:29,092 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 02:58:29,092 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 02:58:29,092 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 02:58:29,092 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 02:58:29,092 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 02:58:29,092 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 02:58:29,093 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 02:58:29,093 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 02:58:29,093 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 02:58:29,093 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 02:58:29,093 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:58:29,093 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 02:58:29,093 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 02:58:29,093 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:58:29,094 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 02:58:29,094 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 02:58:29,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:58:29,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 02:58:29,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:58:29,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 02:58:29,094 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 02:58:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:58:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 02:58:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 02:58:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:58:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 02:58:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 02:58:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:58:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 02:58:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 02:58:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 02:58:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 02:58:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 02:58:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 02:58:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 02:58:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-25 02:58:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 02:58:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:58:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 02:58:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:58:30,124 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:58:30,124 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 02:58:30,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:58:30 BoogieIcfgContainer [2020-09-25 02:58:30,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:58:30,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:58:30,132 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:58:30,136 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:58:30,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:58:28" (1/3) ... [2020-09-25 02:58:30,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a3fb146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:58:30, skipping insertion in model container [2020-09-25 02:58:30,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:58:28" (2/3) ... [2020-09-25 02:58:30,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a3fb146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:58:30, skipping insertion in model container [2020-09-25 02:58:30,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:58:30" (3/3) ... [2020-09-25 02:58:30,140 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product11.cil.c [2020-09-25 02:58:30,151 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:58:30,162 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:58:30,184 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:58:30,217 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:58:30,217 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:58:30,217 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:58:30,217 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:58:30,217 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:58:30,218 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:58:30,218 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:58:30,218 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:58:30,245 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states. [2020-09-25 02:58:30,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 02:58:30,268 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:58:30,269 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:58:30,270 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:58:30,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:58:30,278 INFO L82 PathProgramCache]: Analyzing trace with hash 348388081, now seen corresponding path program 1 times [2020-09-25 02:58:30,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:58:30,290 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [793204866] [2020-09-25 02:58:30,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:58:30,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:30,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:30,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:32,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:35,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:35,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 02:58:35,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:58:35,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 02:58:35,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:35,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 02:58:35,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 02:58:35,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-25 02:58:35,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 02:58:36,102 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:58:36,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:58:36,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:36,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:36,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:36,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:58:36,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:36,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-09-25 02:58:36,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:36,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:36,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:36,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 02:58:36,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:36,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:58:36,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:36,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:36,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:36,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:36,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:36,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:58:36,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:36,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:36,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:36,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:58:36,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:36,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:58:36,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:36,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:36,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:36,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:36,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:36,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:58:36,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:36,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:36,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:36,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:58:36,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:36,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:58:36,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:36,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:36,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:36,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:36,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:36,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:58:36,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:36,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:36,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:36,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:58:36,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:36,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:58:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:36,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:36,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:36,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:36,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:36,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:58:36,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:36,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:36,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:36,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:58:36,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:36,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 02:58:36,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:36,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:36,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:36,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:36,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:36,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:58:36,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:36,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:36,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:36,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:58:36,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:36,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 02:58:36,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:36,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:36,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:36,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:36,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:36,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:58:36,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:36,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:58:36,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:36,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:58:36,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:36,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 02:58:36,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:36,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:36,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:36,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:36,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:36,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:58:36,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:36,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:36,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:58:36,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:36,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:36,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:58:36,638 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [793204866] [2020-09-25 02:58:36,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:58:36,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 02:58:36,642 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188095978] [2020-09-25 02:58:36,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 02:58:36,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:58:36,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 02:58:36,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 02:58:36,670 INFO L87 Difference]: Start difference. First operand 277 states. Second operand 8 states. [2020-09-25 02:58:37,226 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:58:38,608 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:58:38,974 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:58:39,319 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:58:39,660 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:58:39,990 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:58:40,280 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:58:40,637 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:58:41,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:58:41,428 INFO L93 Difference]: Finished difference Result 483 states and 591 transitions. [2020-09-25 02:58:41,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 02:58:41,431 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-25 02:58:41,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:58:41,451 INFO L225 Difference]: With dead ends: 483 [2020-09-25 02:58:41,451 INFO L226 Difference]: Without dead ends: 335 [2020-09-25 02:58:41,457 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 02:58:41,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2020-09-25 02:58:41,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 300. [2020-09-25 02:58:41,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2020-09-25 02:58:41,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 337 transitions. [2020-09-25 02:58:41,588 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 337 transitions. Word has length 153 [2020-09-25 02:58:41,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:58:41,590 INFO L479 AbstractCegarLoop]: Abstraction has 300 states and 337 transitions. [2020-09-25 02:58:41,590 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 02:58:41,590 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 337 transitions. [2020-09-25 02:58:41,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-09-25 02:58:41,599 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:58:41,599 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:58:41,599 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:58:41,599 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:58:41,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:58:41,600 INFO L82 PathProgramCache]: Analyzing trace with hash -212549043, now seen corresponding path program 1 times [2020-09-25 02:58:41,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:58:41,601 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [856628175] [2020-09-25 02:58:41,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:58:41,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:41,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:42,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:42,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 02:58:42,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:42,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1098 [2020-09-25 02:58:42,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:42,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 02:58:42,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 02:58:42,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 02:58:42,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:43,087 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:58:43,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:58:43,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:43,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:43,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:43,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:58:43,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:43,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-09-25 02:58:43,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:43,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:43,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:43,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 02:58:43,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:43,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:58:43,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:43,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:43,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:43,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:43,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:43,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:58:43,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:43,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:43,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:43,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:58:43,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:43,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:58:43,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:43,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:43,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:43,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:43,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:43,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:58:43,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:43,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:43,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:43,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:58:43,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:43,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:58:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:43,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:43,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:43,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:43,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:43,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:58:43,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:43,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:43,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:43,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:58:43,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:43,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:58:43,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:43,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:43,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:43,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:43,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:43,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:58:43,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:43,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:43,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:43,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:58:43,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:43,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 02:58:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:43,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:43,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:43,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:58:43,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:43,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:58:43,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:43,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:43,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:43,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:58:43,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:43,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 02:58:43,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:43,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:43,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:43,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:43,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:43,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:58:43,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:43,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:43,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:58:43,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:43,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:43,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-09-25 02:58:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:43,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:43,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:43,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:43,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:43,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:58:43,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:43,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:43,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:58:43,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:43,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:43,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 02:58:43,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:43,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:43,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:43,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:43,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:43,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:58:43,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:43,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:43,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:58:43,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:43,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:43,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:58:43,522 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [856628175] [2020-09-25 02:58:43,523 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:58:43,523 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 02:58:43,523 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216473234] [2020-09-25 02:58:43,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 02:58:43,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:58:43,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 02:58:43,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 02:58:43,526 INFO L87 Difference]: Start difference. First operand 300 states and 337 transitions. Second operand 6 states. [2020-09-25 02:58:44,031 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:58:44,784 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:58:46,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:58:46,724 INFO L93 Difference]: Finished difference Result 902 states and 1113 transitions. [2020-09-25 02:58:46,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 02:58:46,725 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 168 [2020-09-25 02:58:46,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:58:46,734 INFO L225 Difference]: With dead ends: 902 [2020-09-25 02:58:46,735 INFO L226 Difference]: Without dead ends: 712 [2020-09-25 02:58:46,738 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 02:58:46,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2020-09-25 02:58:46,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 631. [2020-09-25 02:58:46,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 631 states. [2020-09-25 02:58:46,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 745 transitions. [2020-09-25 02:58:46,883 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 745 transitions. Word has length 168 [2020-09-25 02:58:46,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:58:46,884 INFO L479 AbstractCegarLoop]: Abstraction has 631 states and 745 transitions. [2020-09-25 02:58:46,884 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 02:58:46,884 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 745 transitions. [2020-09-25 02:58:46,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 02:58:46,888 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:58:46,888 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:58:46,888 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:58:46,888 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:58:46,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:58:46,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1089668054, now seen corresponding path program 1 times [2020-09-25 02:58:46,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:58:46,889 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [379905956] [2020-09-25 02:58:46,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:58:46,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:46,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:47,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:48,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:49,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:51,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:51,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 02:58:51,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 02:58:51,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 02:58:51,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:51,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 02:58:51,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 02:58:51,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-25 02:58:51,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:52,296 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:58:52,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:58:52,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:52,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:52,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:52,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:58:52,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:52,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-09-25 02:58:52,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:52,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:52,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:52,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 02:58:52,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:52,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:58:52,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:52,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:52,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:52,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:52,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:52,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:58:52,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:52,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:52,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:52,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:58:52,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:52,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:58:52,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:52,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:52,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:52,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:52,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:52,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:58:52,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:52,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:52,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:52,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:58:52,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:52,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:58:52,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:52,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:52,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:52,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:52,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:52,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:58:52,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:52,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:52,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:52,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:58:52,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:52,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:58:52,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:52,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:52,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:52,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:52,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:52,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:58:52,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:52,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:52,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:52,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:58:52,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:52,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 02:58:52,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:52,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:52,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:52,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:58:52,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:52,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:58:52,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:52,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:58:52,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 02:58:52,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:58:52,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:52,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 02:58:52,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:52,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:52,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:52,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:52,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:52,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:58:52,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:52,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:52,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:52,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:58:52,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:52,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 02:58:52,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:52,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:52,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:52,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:52,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:52,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:58:52,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:52,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:52,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:52,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:58:52,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:52,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 02:58:52,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:52,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:52,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:52,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:52,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:52,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:58:52,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:52,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:58:52,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:52,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:58:52,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:52,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 02:58:52,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:52,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:52,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:52,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:52,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:52,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:58:52,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:52,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:52,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:58:52,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:52,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:52,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:58:52,767 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [379905956] [2020-09-25 02:58:52,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:58:52,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 02:58:52,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866574824] [2020-09-25 02:58:52,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 02:58:52,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:58:52,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 02:58:52,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-09-25 02:58:52,769 INFO L87 Difference]: Start difference. First operand 631 states and 745 transitions. Second operand 12 states. [2020-09-25 02:58:53,265 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:58:54,277 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:58:55,251 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:58:55,605 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:58:55,971 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:58:56,335 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:58:56,638 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:58:56,967 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:58:57,272 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:58:57,651 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:58:58,005 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:58:58,348 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:58:58,728 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:58:59,078 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:58:59,501 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:59:00,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:59:00,885 INFO L93 Difference]: Finished difference Result 1401 states and 1818 transitions. [2020-09-25 02:59:00,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-25 02:59:00,885 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 162 [2020-09-25 02:59:00,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:59:00,900 INFO L225 Difference]: With dead ends: 1401 [2020-09-25 02:59:00,900 INFO L226 Difference]: Without dead ends: 1102 [2020-09-25 02:59:00,907 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=213, Invalid=657, Unknown=0, NotChecked=0, Total=870 [2020-09-25 02:59:00,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2020-09-25 02:59:01,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 876. [2020-09-25 02:59:01,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 876 states. [2020-09-25 02:59:01,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1055 transitions. [2020-09-25 02:59:01,085 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1055 transitions. Word has length 162 [2020-09-25 02:59:01,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:59:01,086 INFO L479 AbstractCegarLoop]: Abstraction has 876 states and 1055 transitions. [2020-09-25 02:59:01,086 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 02:59:01,086 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1055 transitions. [2020-09-25 02:59:01,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 02:59:01,091 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:59:01,091 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:59:01,092 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:59:01,092 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:59:01,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:59:01,093 INFO L82 PathProgramCache]: Analyzing trace with hash -1656398860, now seen corresponding path program 1 times [2020-09-25 02:59:01,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:59:01,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [860797859] [2020-09-25 02:59:01,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:59:01,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 02:59:01,158 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 02:59:01,158 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 02:59:01,163 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 02:59:01,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:59:01 BoogieIcfgContainer [2020-09-25 02:59:01,189 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 02:59:01,191 INFO L168 Benchmark]: Toolchain (without parser) took 33030.60 ms. Allocated memory was 138.9 MB in the beginning and 680.5 MB in the end (delta: 541.6 MB). Free memory was 101.5 MB in the beginning and 615.9 MB in the end (delta: -514.4 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2020-09-25 02:59:01,192 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 02:59:01,193 INFO L168 Benchmark]: CACSL2BoogieTranslator took 743.32 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 100.9 MB in the beginning and 171.9 MB in the end (delta: -71.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. [2020-09-25 02:59:01,194 INFO L168 Benchmark]: Boogie Preprocessor took 93.13 ms. Allocated memory is still 201.3 MB. Free memory was 171.9 MB in the beginning and 167.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-25 02:59:01,195 INFO L168 Benchmark]: RCFGBuilder took 1127.79 ms. Allocated memory was 201.3 MB in the beginning and 233.8 MB in the end (delta: 32.5 MB). Free memory was 167.7 MB in the beginning and 181.1 MB in the end (delta: -13.4 MB). Peak memory consumption was 86.8 MB. Max. memory is 7.1 GB. [2020-09-25 02:59:01,196 INFO L168 Benchmark]: TraceAbstraction took 31057.37 ms. Allocated memory was 233.8 MB in the beginning and 680.5 MB in the end (delta: 446.7 MB). Free memory was 181.1 MB in the beginning and 615.9 MB in the end (delta: -434.8 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. [2020-09-25 02:59:01,200 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 743.32 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 100.9 MB in the beginning and 171.9 MB in the end (delta: -71.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 93.13 ms. Allocated memory is still 201.3 MB. Free memory was 171.9 MB in the beginning and 167.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1127.79 ms. Allocated memory was 201.3 MB in the beginning and 233.8 MB in the end (delta: 32.5 MB). Free memory was 167.7 MB in the beginning and 181.1 MB in the end (delta: -13.4 MB). Peak memory consumption was 86.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 31057.37 ms. Allocated memory was 233.8 MB in the beginning and 680.5 MB in the end (delta: 446.7 MB). Free memory was 181.1 MB in the beginning and 615.9 MB in the end (delta: -434.8 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 799]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L78] int cleanupTimeShifts = 4; [L386] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L588] int pumpRunning = 0; [L589] int systemActive = 1; [L804] int waterLevel = 1; [L805] int methaneLevelCritical = 0; [L159] int retValue_acc ; [L160] int tmp ; [L164] FCALL select_helpers() [L165] FCALL select_features() [L166] CALL, EXPR valid_product() [L208] int retValue_acc ; [L211] retValue_acc = 1 [L212] return (retValue_acc); [L166] RET, EXPR valid_product() [L166] tmp = valid_product() [L168] COND TRUE \read(tmp) [L170] FCALL setup() [L171] CALL runTest() [L150] CALL test() [L729] int splverifierCounter ; [L730] int tmp ; [L731] int tmp___0 ; [L732] int tmp___1 ; [L733] int tmp___2 ; [L736] splverifierCounter = 0 [L738] COND TRUE 1 [L740] COND TRUE splverifierCounter < 4 [L746] tmp = __VERIFIER_nondet_int() [L748] COND TRUE \read(tmp) [L750] CALL waterRise() [L822] COND TRUE waterLevel < 2 [L823] waterLevel = waterLevel + 1 [L750] RET waterRise() [L756] tmp___0 = __VERIFIER_nondet_int() [L758] COND FALSE !(\read(tmp___0)) [L766] tmp___2 = __VERIFIER_nondet_int() [L768] COND TRUE \read(tmp___2) [L783] CALL timeShift() [L595] COND FALSE !(\read(pumpRunning)) [L602] COND TRUE \read(systemActive) [L604] FCALL processEnvironment() [L610] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L843] int retValue_acc ; [L846] retValue_acc = methaneLevelCritical [L847] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L875] int retValue_acc ; [L878] retValue_acc = waterLevel [L879] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L668] int retValue_acc ; [L671] retValue_acc = pumpRunning [L672] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L799] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 593 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 30.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 16.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 661 SDtfs, 1435 SDslu, 1874 SDs, 0 SdLazy, 3222 SolverSat, 464 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 8.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=876occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 3 MinimizatonAttempts, 342 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 13.5s InterpolantComputationTime, 654 NumberOfCodeBlocks, 654 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 480 ConstructedInterpolants, 0 QuantifiedInterpolants, 219064 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...