/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 SequenceOfStatements --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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 01:42:26,708 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 01:42:26,710 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 01:42:26,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 01:42:26,742 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 01:42:26,750 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 01:42:26,751 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 01:42:26,753 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 01:42:26,754 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 01:42:26,757 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 01:42:26,758 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 01:42:26,761 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 01:42:26,761 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 01:42:26,764 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 01:42:26,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 01:42:26,767 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 01:42:26,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 01:42:26,771 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 01:42:26,773 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 01:42:26,778 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 01:42:26,780 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 01:42:26,781 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 01:42:26,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 01:42:26,784 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 01:42:26,795 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 01:42:26,795 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 01:42:26,795 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 01:42:26,796 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 01:42:26,797 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 01:42:26,800 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 01:42:26,800 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 01:42:26,801 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 01:42:26,801 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 01:42:26,802 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 01:42:26,803 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 01:42:26,803 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 01:42:26,804 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 01:42:26,804 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 01:42:26,804 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 01:42:26,805 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 01:42:26,806 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 01:42:26,807 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 [2020-10-15 01:42:26,855 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 01:42:26,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 01:42:26,857 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 01:42:26,857 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 01:42:26,857 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 01:42:26,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 01:42:26,857 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 01:42:26,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 01:42:26,858 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 01:42:26,858 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 01:42:26,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 01:42:26,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 01:42:26,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 01:42:26,861 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 01:42:26,861 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 01:42:26,861 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 01:42:26,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 01:42:26,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 01:42:26,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 01:42:26,862 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 01:42:26,862 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 01:42:26,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 01:42:26,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 01:42:26,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 01:42:26,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 01:42:26,863 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 01:42:26,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 01:42:26,867 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 01:42:26,868 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 01:42:26,868 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 -> SequenceOfStatements 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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 01:42:27,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 01:42:27,198 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 01:42:27,202 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 01:42:27,203 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 01:42:27,204 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 01:42:27,204 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c [2020-10-15 01:42:27,274 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/017d71310/86ce6bda715448fe88b3e35ec3039603/FLAGfd065e808 [2020-10-15 01:42:27,820 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 01:42:27,821 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c [2020-10-15 01:42:27,833 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/017d71310/86ce6bda715448fe88b3e35ec3039603/FLAGfd065e808 [2020-10-15 01:42:28,031 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/017d71310/86ce6bda715448fe88b3e35ec3039603 [2020-10-15 01:42:28,039 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 01:42:28,041 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 01:42:28,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 01:42:28,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 01:42:28,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 01:42:28,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:42:28" (1/1) ... [2020-10-15 01:42:28,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a8795c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:28, skipping insertion in model container [2020-10-15 01:42:28,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:42:28" (1/1) ... [2020-10-15 01:42:28,058 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 01:42:28,102 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 01:42:28,431 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 01:42:28,444 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 01:42:28,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 01:42:28,676 INFO L208 MainTranslator]: Completed translation [2020-10-15 01:42:28,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:28 WrapperNode [2020-10-15 01:42:28,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 01:42:28,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 01:42:28,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 01:42:28,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 01:42:28,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:28" (1/1) ... [2020-10-15 01:42:28,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:28" (1/1) ... [2020-10-15 01:42:28,712 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:28" (1/1) ... [2020-10-15 01:42:28,712 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:28" (1/1) ... [2020-10-15 01:42:28,760 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:28" (1/1) ... [2020-10-15 01:42:28,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:28" (1/1) ... [2020-10-15 01:42:28,774 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:28" (1/1) ... [2020-10-15 01:42:28,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 01:42:28,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 01:42:28,782 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 01:42:28,782 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 01:42:28,783 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:28" (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 [2020-10-15 01:42:28,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 01:42:28,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 01:42:28,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-15 01:42:28,872 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-15 01:42:28,872 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-15 01:42:28,872 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-15 01:42:28,872 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-15 01:42:28,873 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-15 01:42:28,873 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-15 01:42:28,873 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-15 01:42:28,873 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-15 01:42:28,874 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-15 01:42:28,874 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-15 01:42:28,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-15 01:42:28,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-15 01:42:28,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-15 01:42:28,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-15 01:42:28,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-15 01:42:28,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-15 01:42:28,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-15 01:42:28,876 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-15 01:42:28,876 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-15 01:42:28,876 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-15 01:42:28,877 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-10-15 01:42:28,877 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-15 01:42:28,877 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-15 01:42:28,878 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-15 01:42:28,878 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-15 01:42:28,878 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-15 01:42:28,878 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-15 01:42:28,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-15 01:42:28,878 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-15 01:42:28,878 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-15 01:42:28,879 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-15 01:42:28,879 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-15 01:42:28,879 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 01:42:28,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 01:42:28,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-15 01:42:28,879 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-15 01:42:28,880 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-15 01:42:28,880 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-15 01:42:28,880 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-15 01:42:28,880 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-15 01:42:28,880 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-15 01:42:28,881 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-15 01:42:28,881 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-15 01:42:28,881 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-15 01:42:28,881 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-15 01:42:28,881 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-15 01:42:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 01:42:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-15 01:42:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-15 01:42:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-15 01:42:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-15 01:42:28,882 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-15 01:42:28,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-15 01:42:28,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-15 01:42:28,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 01:42:28,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-15 01:42:28,883 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-15 01:42:28,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 01:42:28,883 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-15 01:42:28,883 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-15 01:42:28,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-15 01:42:28,884 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-15 01:42:28,884 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-15 01:42:28,884 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-15 01:42:28,884 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-15 01:42:28,884 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-15 01:42:28,884 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-15 01:42:28,884 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-15 01:42:28,885 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-15 01:42:28,885 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-15 01:42:28,885 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-15 01:42:28,885 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-15 01:42:28,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-15 01:42:28,886 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-15 01:42:28,886 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-10-15 01:42:28,886 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-15 01:42:28,886 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-15 01:42:28,887 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-15 01:42:28,887 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-15 01:42:28,887 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 01:42:28,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 01:42:28,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-15 01:42:28,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 01:42:29,900 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 01:42:29,900 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-15 01:42:29,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:42:29 BoogieIcfgContainer [2020-10-15 01:42:29,906 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 01:42:29,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 01:42:29,908 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 01:42:29,911 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 01:42:29,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:42:28" (1/3) ... [2020-10-15 01:42:29,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@497c338d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:42:29, skipping insertion in model container [2020-10-15 01:42:29,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:42:28" (2/3) ... [2020-10-15 01:42:29,913 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@497c338d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:42:29, skipping insertion in model container [2020-10-15 01:42:29,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:42:29" (3/3) ... [2020-10-15 01:42:29,915 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product10.cil.c [2020-10-15 01:42:29,926 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 01:42:29,938 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 01:42:29,971 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 01:42:30,010 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 01:42:30,010 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 01:42:30,010 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 01:42:30,010 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 01:42:30,011 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 01:42:30,011 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 01:42:30,011 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 01:42:30,011 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 01:42:30,038 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states. [2020-10-15 01:42:30,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-15 01:42:30,050 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:42:30,051 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] [2020-10-15 01:42:30,052 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:42:30,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:42:30,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1414244218, now seen corresponding path program 1 times [2020-10-15 01:42:30,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:42:30,070 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [64408852] [2020-10-15 01:42:30,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:42:30,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:42:30,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:42:30,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:42:31,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:42:32,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:42:32,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-15 01:42:32,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 01:42:32,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2415 [2020-10-15 01:42:32,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:42:32,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:42:32,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 01:42:32,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:42:32,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-15 01:42:32,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-15 01:42:33,170 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-15 01:42:33,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:42:33,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:42:33,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:42:33,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:42:33,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:42:33,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:42:33,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-15 01:42:33,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:42:33,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:42:33,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:42:33,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:42:33,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 01:42:33,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:42:33,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 01:42:33,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:42:33,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:42:33,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:42:33,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:42:33,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:42:33,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:42:33,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:42:33,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:42:33,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:42:33,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:42:33,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:42:33,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:42:33,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 01:42:33,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:42:33,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:42:33,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:42:33,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:42:33,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:42:33,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:42:33,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:42:33,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:42:33,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:42:33,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:42:33,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:42:33,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:42:33,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 01:42:33,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:42:33,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:42:33,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:42:33,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:42:33,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:42:33,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 01:42:33,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:42:33,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:42:33,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:42:33,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:42:33,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:42:33,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:42:33,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 01:42:33,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:42:33,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:42:33,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:42:33,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:42:33,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:42:33,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:42:33,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:42:33,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:42:33,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:42:33,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:42:33,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:42:33,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:42:33,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-15 01:42:33,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:42:33,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:42:33,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:42:33,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:42:33,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:42:33,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 01:42:33,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:42:33,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:42:33,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:42:33,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:42:33,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:42:33,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 01:42:33,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-15 01:42:33,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:42:33,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:42:33,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:42:33,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:42:33,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:42:33,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 01:42:33,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:42:33,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:42:33,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 01:42:33,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:42:33,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:42:33,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:42:33,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-15 01:42:33,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:42:33,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:42:33,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:42:33,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:42:33,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:42:33,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:42:33,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:42:33,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:42:33,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:42:33,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:42:33,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:42:33,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:42:33,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 01:42:33,403 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [64408852] [2020-10-15 01:42:33,405 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 01:42:33,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 01:42:33,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621499686] [2020-10-15 01:42:33,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 01:42:33,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:42:33,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 01:42:33,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-15 01:42:33,439 INFO L87 Difference]: Start difference. First operand 145 states. Second operand 8 states. [2020-10-15 01:42:33,990 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 01:42:35,271 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-15 01:42:35,868 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-15 01:42:36,321 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-15 01:42:36,602 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-15 01:42:36,861 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-15 01:42:37,185 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-15 01:42:37,596 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-15 01:42:37,990 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 01:42:38,447 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-15 01:42:39,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:42:39,351 INFO L93 Difference]: Finished difference Result 373 states and 526 transitions. [2020-10-15 01:42:39,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-15 01:42:39,354 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-10-15 01:42:39,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:42:39,368 INFO L225 Difference]: With dead ends: 373 [2020-10-15 01:42:39,369 INFO L226 Difference]: Without dead ends: 249 [2020-10-15 01:42:39,374 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2020-10-15 01:42:39,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-10-15 01:42:39,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 215. [2020-10-15 01:42:39,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2020-10-15 01:42:39,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 270 transitions. [2020-10-15 01:42:39,534 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 270 transitions. Word has length 52 [2020-10-15 01:42:39,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:42:39,534 INFO L479 AbstractCegarLoop]: Abstraction has 215 states and 270 transitions. [2020-10-15 01:42:39,534 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 01:42:39,535 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 270 transitions. [2020-10-15 01:42:39,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-15 01:42:39,548 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:42:39,549 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] [2020-10-15 01:42:39,549 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 01:42:39,549 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:42:39,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:42:39,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1924856865, now seen corresponding path program 1 times [2020-10-15 01:42:39,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:42:39,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [648988542] [2020-10-15 01:42:39,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:42:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:42:39,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:42:40,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:42:40,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-15 01:42:40,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:42:40,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 685 [2020-10-15 01:42:40,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:42:40,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:42:40,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 01:42:40,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:42:40,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-15 01:42:40,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:42:40,586 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-15 01:42:40,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:42:40,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:42:40,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:42:40,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:42:40,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:42:40,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:42:40,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-15 01:42:40,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:42:40,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:42:40,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:42:40,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:42:40,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 01:42:40,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:42:40,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 01:42:40,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:42:40,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:42:40,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:42:40,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:42:40,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:42:40,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 01:42:40,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:42:40,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:42:40,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:42:40,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:42:40,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:42:40,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:42:40,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 01:42:40,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:42:40,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:42:40,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:42:40,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:42:40,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:42:40,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 01:42:40,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:42:40,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:42:40,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:42:40,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:42:40,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:42:40,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:42:40,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 01:42:40,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:42:40,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:42:40,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:42:40,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:42:40,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:42:40,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:42:40,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:42:40,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:42:40,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:42:40,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:42:40,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:42:40,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:42:40,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 01:42:40,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:42:40,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:42:40,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:42:40,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:42:40,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:42:40,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 01:42:40,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:42:40,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:42:40,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:42:40,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:42:40,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:42:40,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:42:40,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-15 01:42:40,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:42:40,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:42:40,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:42:40,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:42:40,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:42:40,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 01:42:40,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:42:40,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:42:40,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:42:40,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:42:40,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:42:40,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:42:40,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-15 01:42:40,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:42:40,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:42:40,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:42:40,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:42:40,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:42:40,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:42:40,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:42:40,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:42:40,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:42:40,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:42:40,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:42:40,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:42:40,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-15 01:42:40,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:42:40,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:42:40,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:42:40,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:42:40,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:42:40,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:42:40,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:42:40,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:42:40,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:42:40,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:42:40,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:42:40,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 01:42:40,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 01:42:40,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:42:40,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:42:40,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:42:40,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:42:40,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:42:40,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:42:40,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:42:40,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:42:40,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:42:40,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:42:40,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:42:40,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:42:40,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 01:42:40,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [648988542] [2020-10-15 01:42:40,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 01:42:40,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 01:42:40,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838870369] [2020-10-15 01:42:40,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 01:42:40,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:42:40,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 01:42:40,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 01:42:40,799 INFO L87 Difference]: Start difference. First operand 215 states and 270 transitions. Second operand 5 states. [2020-10-15 01:42:41,103 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 01:42:41,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:42:41,808 INFO L93 Difference]: Finished difference Result 432 states and 585 transitions. [2020-10-15 01:42:41,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 01:42:41,810 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 62 [2020-10-15 01:42:41,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:42:41,815 INFO L225 Difference]: With dead ends: 432 [2020-10-15 01:42:41,815 INFO L226 Difference]: Without dead ends: 241 [2020-10-15 01:42:41,819 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 01:42:41,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2020-10-15 01:42:41,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 215. [2020-10-15 01:42:41,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2020-10-15 01:42:41,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 265 transitions. [2020-10-15 01:42:41,879 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 265 transitions. Word has length 62 [2020-10-15 01:42:41,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:42:41,880 INFO L479 AbstractCegarLoop]: Abstraction has 215 states and 265 transitions. [2020-10-15 01:42:41,880 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 01:42:41,880 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 265 transitions. [2020-10-15 01:42:41,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-15 01:42:41,882 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:42:41,883 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] [2020-10-15 01:42:41,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 01:42:41,883 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:42:41,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:42:41,883 INFO L82 PathProgramCache]: Analyzing trace with hash -1123872256, now seen corresponding path program 1 times [2020-10-15 01:42:41,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:42:41,884 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [673470046] [2020-10-15 01:42:41,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:42:41,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:42:41,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:42:41,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:42:42,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:42:43,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:42:43,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-15 01:42:43,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 01:42:43,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1291 [2020-10-15 01:42:43,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:42:43,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:42:43,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:42:43,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:42:43,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-15 01:42:43,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:42:43,437 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-15 01:42:43,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 01:42:43,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:42:43,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:42:43,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:42:43,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:42:43,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:42:43,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-15 01:42:43,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:42:43,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:42:43,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:42:43,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:42:43,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 01:42:43,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:42:43,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 01:42:43,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:42:43,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:42:43,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:42:43,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:42:43,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:42:43,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:42:43,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:42:43,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:42:43,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:42:43,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:42:43,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:42:43,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:42:43,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 01:42:43,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:42:43,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:42:43,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:42:43,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:42:43,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:42:43,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:42:43,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:42:43,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:42:43,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:42:43,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:42:43,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:42:43,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:42:43,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 01:42:43,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:42:43,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:42:43,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:42:43,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:42:43,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:42:43,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:42:43,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:42:43,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:42:43,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:42:43,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:42:43,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:42:43,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:42:43,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-15 01:42:43,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:42:43,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:42:43,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:42:43,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:42:43,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:42:43,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:42:43,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:42:43,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:42:43,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:42:43,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:42:43,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 01:42:43,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:42:43,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-15 01:42:43,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:42:43,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:42:43,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:42:43,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:42:43,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:42:43,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 01:42:43,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:42:43,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:42:43,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 01:42:43,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 01:42:43,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 01:42:43,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:42:43,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-15 01:42:43,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:42:43,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:42:43,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:42:43,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:42:43,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:42:43,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:42:43,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:42:43,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:42:43,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:42:43,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:42:43,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:42:43,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:42:43,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-15 01:42:43,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:42:43,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:42:43,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:42:43,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 01:42:43,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:42:43,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:42:43,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:42:43,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:42:43,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:42:43,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 01:42:43,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:42:43,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:42:43,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-15 01:42:43,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:42:43,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:42:43,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:42:43,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:42:43,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:42:43,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:42:43,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:42:43,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:42:43,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:42:43,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:42:43,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:42:43,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 01:42:43,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-15 01:42:43,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:42:43,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:42:43,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:42:43,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:42:43,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:42:43,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:42:43,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:42:43,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:42:43,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:42:43,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:42:43,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:42:43,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:42:43,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 01:42:43,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 01:42:43,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 01:42:43,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 01:42:43,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 01:42:43,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 01:42:43,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 01:42:43,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 01:42:43,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 01:42:43,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 01:42:43,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 01:42:43,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 01:42:43,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 01:42:43,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 01:42:43,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [673470046] [2020-10-15 01:42:43,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 01:42:43,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 01:42:43,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212823052] [2020-10-15 01:42:43,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 01:42:43,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 01:42:43,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 01:42:43,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 01:42:43,627 INFO L87 Difference]: Start difference. First operand 215 states and 265 transitions. Second operand 5 states. [2020-10-15 01:42:43,915 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-15 01:42:44,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 01:42:44,446 INFO L93 Difference]: Finished difference Result 294 states and 372 transitions. [2020-10-15 01:42:44,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 01:42:44,447 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2020-10-15 01:42:44,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 01:42:44,449 INFO L225 Difference]: With dead ends: 294 [2020-10-15 01:42:44,449 INFO L226 Difference]: Without dead ends: 145 [2020-10-15 01:42:44,451 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 01:42:44,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-10-15 01:42:44,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 132. [2020-10-15 01:42:44,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-10-15 01:42:44,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 150 transitions. [2020-10-15 01:42:44,502 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 150 transitions. Word has length 69 [2020-10-15 01:42:44,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 01:42:44,504 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 150 transitions. [2020-10-15 01:42:44,504 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 01:42:44,504 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 150 transitions. [2020-10-15 01:42:44,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-15 01:42:44,506 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 01:42:44,506 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] [2020-10-15 01:42:44,506 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 01:42:44,506 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 01:42:44,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 01:42:44,507 INFO L82 PathProgramCache]: Analyzing trace with hash 993675046, now seen corresponding path program 1 times [2020-10-15 01:42:44,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 01:42:44,507 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1433422694] [2020-10-15 01:42:44,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 01:42:44,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 01:42:44,547 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-15 01:42:44,548 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 01:42:44,552 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 01:42:44,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:42:44 BoogieIcfgContainer [2020-10-15 01:42:44,589 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 01:42:44,592 INFO L168 Benchmark]: Toolchain (without parser) took 16550.70 ms. Allocated memory was 148.4 MB in the beginning and 470.8 MB in the end (delta: 322.4 MB). Free memory was 104.1 MB in the beginning and 296.1 MB in the end (delta: -192.0 MB). Peak memory consumption was 130.4 MB. Max. memory is 7.1 GB. [2020-10-15 01:42:44,592 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.5 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-15 01:42:44,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 634.90 ms. Allocated memory was 148.4 MB in the beginning and 206.0 MB in the end (delta: 57.7 MB). Free memory was 103.7 MB in the beginning and 176.7 MB in the end (delta: -73.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2020-10-15 01:42:44,596 INFO L168 Benchmark]: Boogie Preprocessor took 103.78 ms. Allocated memory is still 206.0 MB. Free memory was 176.7 MB in the beginning and 172.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-10-15 01:42:44,602 INFO L168 Benchmark]: RCFGBuilder took 1124.97 ms. Allocated memory was 206.0 MB in the beginning and 233.3 MB in the end (delta: 27.3 MB). Free memory was 172.6 MB in the beginning and 196.1 MB in the end (delta: -23.5 MB). Peak memory consumption was 81.2 MB. Max. memory is 7.1 GB. [2020-10-15 01:42:44,603 INFO L168 Benchmark]: TraceAbstraction took 14681.93 ms. Allocated memory was 233.3 MB in the beginning and 470.8 MB in the end (delta: 237.5 MB). Free memory was 196.1 MB in the beginning and 296.1 MB in the end (delta: -100.0 MB). Peak memory consumption was 137.5 MB. Max. memory is 7.1 GB. [2020-10-15 01:42:44,616 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.5 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 634.90 ms. Allocated memory was 148.4 MB in the beginning and 206.0 MB in the end (delta: 57.7 MB). Free memory was 103.7 MB in the beginning and 176.7 MB in the end (delta: -73.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.78 ms. Allocated memory is still 206.0 MB. Free memory was 176.7 MB in the beginning and 172.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1124.97 ms. Allocated memory was 206.0 MB in the beginning and 233.3 MB in the end (delta: 27.3 MB). Free memory was 172.6 MB in the beginning and 196.1 MB in the end (delta: -23.5 MB). Peak memory consumption was 81.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14681.93 ms. Allocated memory was 233.3 MB in the beginning and 470.8 MB in the end (delta: 237.5 MB). Free memory was 196.1 MB in the beginning and 296.1 MB in the end (delta: -100.0 MB). Peak memory consumption was 137.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 168]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L84] int waterLevel = 1; [L85] int methaneLevelCritical = 0; [L342] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L613] int pumpRunning = 0; [L614] int systemActive = 1; [L781] int cleanupTimeShifts = 4; [L854] int retValue_acc ; [L855] int tmp ; [L859] FCALL select_helpers() [L860] FCALL select_features() [L861] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L861] RET, EXPR valid_product() [L861] tmp = valid_product() [L863] COND TRUE \read(tmp) [L865] FCALL setup() [L866] CALL runTest() [L848] CALL test() [L543] int splverifierCounter ; [L544] int tmp ; [L545] int tmp___0 ; [L546] int tmp___1 ; [L547] int tmp___2 ; [L550] splverifierCounter = 0 [L552] COND TRUE 1 [L554] COND TRUE splverifierCounter < 4 [L560] tmp = __VERIFIER_nondet_int() [L562] COND TRUE \read(tmp) [L564] CALL waterRise() [L102] COND TRUE waterLevel < 2 [L103] waterLevel = waterLevel + 1 [L564] RET waterRise() [L570] tmp___0 = __VERIFIER_nondet_int() [L572] COND FALSE !(\read(tmp___0)) [L580] tmp___2 = __VERIFIER_nondet_int() [L582] COND FALSE !(\read(tmp___2)) [L588] tmp___1 = __VERIFIER_nondet_int() [L590] COND FALSE !(\read(tmp___1)) [L597] CALL timeShift() [L621] COND FALSE !(\read(pumpRunning)) [L628] COND TRUE \read(systemActive) [L630] FCALL processEnvironment() [L636] CALL __utac_acc__Specification3_spec__1() [L748] int tmp ; [L749] int tmp___0 ; [L750] int tmp___1 ; [L754] CALL, EXPR isMethaneLevelCritical() [L123] int retValue_acc ; [L126] retValue_acc = methaneLevelCritical [L127] return (retValue_acc); [L754] RET, EXPR isMethaneLevelCritical() [L754] tmp = isMethaneLevelCritical() [L756] COND FALSE !(\read(tmp)) [L760] CALL, EXPR getWaterLevel() [L155] int retValue_acc ; [L158] retValue_acc = waterLevel [L159] return (retValue_acc); [L760] RET, EXPR getWaterLevel() [L760] tmp___0 = getWaterLevel() [L762] COND TRUE tmp___0 == 2 [L764] CALL, EXPR isPumpRunning() [L694] int retValue_acc ; [L697] retValue_acc = pumpRunning [L698] return (retValue_acc); [L764] RET, EXPR isPumpRunning() [L764] tmp___1 = isPumpRunning() [L766] COND FALSE !(\read(tmp___1)) [L770] CALL __automaton_fail() [L168] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 208 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 259 SDtfs, 580 SDslu, 247 SDs, 0 SdLazy, 912 SolverSat, 335 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=215occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 73 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 248 NumberOfCodeBlocks, 248 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 55391 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...