/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=HIGHLEXORDER --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_product12.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 22:28:06,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 22:28:06,720 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 22:28:06,769 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 22:28:06,770 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 22:28:06,780 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 22:28:06,783 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 22:28:06,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 22:28:06,789 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 22:28:06,793 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 22:28:06,794 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 22:28:06,795 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 22:28:06,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 22:28:06,799 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 22:28:06,801 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 22:28:06,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 22:28:06,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 22:28:06,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 22:28:06,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 22:28:06,817 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 22:28:06,819 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 22:28:06,820 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 22:28:06,821 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 22:28:06,822 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 22:28:06,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 22:28:06,824 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 22:28:06,824 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 22:28:06,825 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 22:28:06,826 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 22:28:06,827 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 22:28:06,827 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 22:28:06,828 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 22:28:06,829 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 22:28:06,830 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 22:28:06,831 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 22:28:06,831 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 22:28:06,832 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 22:28:06,832 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 22:28:06,832 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 22:28:06,833 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 22:28:06,834 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 22:28:06,835 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 [2020-09-24 22:28:06,861 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 22:28:06,861 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 22:28:06,862 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 22:28:06,862 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 22:28:06,863 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 22:28:06,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 22:28:06,863 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 22:28:06,863 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 22:28:06,864 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 22:28:06,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 22:28:06,864 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 22:28:06,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 22:28:06,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 22:28:06,865 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 22:28:06,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 22:28:06,865 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 22:28:06,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 22:28:06,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 22:28:06,866 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 22:28:06,866 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 22:28:06,866 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 22:28:06,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 22:28:06,867 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 22:28:06,867 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 22:28:06,867 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 22:28:06,867 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 22:28:06,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 22:28:06,868 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 22:28:06,868 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 22:28:06,868 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 -> 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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;log-additional-information=true; [2020-09-24 22:28:07,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 22:28:07,319 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 22:28:07,323 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 22:28:07,325 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 22:28:07,327 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 22:28:07,328 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product12.cil.c [2020-09-24 22:28:07,407 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/91467b6d5/a9c8516a0b4b43df9717935e1910bb95/FLAG8abe77e19 [2020-09-24 22:28:08,049 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 22:28:08,050 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product12.cil.c [2020-09-24 22:28:08,072 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/91467b6d5/a9c8516a0b4b43df9717935e1910bb95/FLAG8abe77e19 [2020-09-24 22:28:08,271 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/91467b6d5/a9c8516a0b4b43df9717935e1910bb95 [2020-09-24 22:28:08,283 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 22:28:08,288 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 22:28:08,289 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 22:28:08,289 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 22:28:08,294 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 22:28:08,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:28:08" (1/1) ... [2020-09-24 22:28:08,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62c09893 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:08, skipping insertion in model container [2020-09-24 22:28:08,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:28:08" (1/1) ... [2020-09-24 22:28:08,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 22:28:08,354 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 22:28:08,800 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:28:08,814 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 22:28:08,899 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 22:28:08,933 INFO L208 MainTranslator]: Completed translation [2020-09-24 22:28:08,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:08 WrapperNode [2020-09-24 22:28:08,934 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 22:28:08,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 22:28:08,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 22:28:08,935 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 22:28:08,948 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:08" (1/1) ... [2020-09-24 22:28:08,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:08" (1/1) ... [2020-09-24 22:28:08,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:08" (1/1) ... [2020-09-24 22:28:08,970 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:08" (1/1) ... [2020-09-24 22:28:09,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:08" (1/1) ... [2020-09-24 22:28:09,015 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:08" (1/1) ... [2020-09-24 22:28:09,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:08" (1/1) ... [2020-09-24 22:28:09,029 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 22:28:09,029 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 22:28:09,030 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 22:28:09,030 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 22:28:09,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:08" (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 [2020-09-24 22:28:09,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 22:28:09,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 22:28:09,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 22:28:09,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 22:28:09,103 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 22:28:09,103 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 22:28:09,104 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 22:28:09,104 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-24 22:28:09,104 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 22:28:09,104 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 22:28:09,104 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 22:28:09,104 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 22:28:09,105 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 22:28:09,105 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 22:28:09,105 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 22:28:09,105 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 22:28:09,105 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 22:28:09,106 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 22:28:09,106 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 22:28:09,106 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 22:28:09,106 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 22:28:09,107 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 22:28:09,107 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 22:28:09,107 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 22:28:09,107 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 22:28:09,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 22:28:09,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 22:28:09,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 22:28:09,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 22:28:09,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 22:28:09,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 22:28:09,108 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 22:28:09,108 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 22:28:09,109 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 22:28:09,109 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 22:28:09,109 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 22:28:09,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 22:28:09,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 22:28:09,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 22:28:09,110 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 22:28:09,110 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 22:28:09,110 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 22:28:09,110 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 22:28:09,110 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 22:28:09,110 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 22:28:09,110 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 22:28:09,111 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 22:28:09,111 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 22:28:09,111 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 22:28:09,111 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 22:28:09,111 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 22:28:09,111 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 22:28:09,112 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 22:28:09,112 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 22:28:09,112 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 22:28:09,112 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 22:28:09,112 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 22:28:09,112 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 22:28:09,113 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-24 22:28:09,113 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 22:28:09,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 22:28:09,113 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 22:28:09,113 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 22:28:09,113 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 22:28:09,114 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 22:28:09,114 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 22:28:09,114 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 22:28:09,114 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 22:28:09,114 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 22:28:09,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 22:28:09,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 22:28:09,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 22:28:09,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 22:28:09,115 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 22:28:09,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 22:28:09,115 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 22:28:09,115 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 22:28:09,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 22:28:09,116 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 22:28:09,116 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 22:28:09,116 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 22:28:09,116 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 22:28:09,117 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 22:28:09,117 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 22:28:09,117 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 22:28:09,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 22:28:09,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 22:28:09,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 22:28:10,241 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 22:28:10,241 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 22:28:10,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:28:10 BoogieIcfgContainer [2020-09-24 22:28:10,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 22:28:10,253 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 22:28:10,253 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 22:28:10,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 22:28:10,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:28:08" (1/3) ... [2020-09-24 22:28:10,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c1254eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:28:10, skipping insertion in model container [2020-09-24 22:28:10,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:28:08" (2/3) ... [2020-09-24 22:28:10,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c1254eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:28:10, skipping insertion in model container [2020-09-24 22:28:10,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:28:10" (3/3) ... [2020-09-24 22:28:10,261 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product12.cil.c [2020-09-24 22:28:10,272 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 22:28:10,283 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 22:28:10,303 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 22:28:10,330 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 22:28:10,330 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 22:28:10,330 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 22:28:10,330 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 22:28:10,330 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 22:28:10,331 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 22:28:10,331 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 22:28:10,331 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 22:28:10,356 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states. [2020-09-24 22:28:10,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 22:28:10,371 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:28:10,372 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] [2020-09-24 22:28:10,373 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:28:10,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:28:10,380 INFO L82 PathProgramCache]: Analyzing trace with hash 459580304, now seen corresponding path program 1 times [2020-09-24 22:28:10,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:28:10,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [39331783] [2020-09-24 22:28:10,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:28:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:10,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:11,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:12,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:15,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:15,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 22:28:15,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:28:15,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-24 22:28:15,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:15,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:15,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 22:28:15,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:15,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 22:28:16,100 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:28:16,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:28:16,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:16,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:16,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:16,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:28:16,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:16,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-24 22:28:16,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:16,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:16,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:16,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:16,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:16,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:28:16,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:16,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:16,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:16,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:16,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:16,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:16,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:16,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:16,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:16,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:16,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:16,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:28:16,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:16,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:16,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:16,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:16,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:16,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:16,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:16,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:16,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:16,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:16,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:16,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:28:16,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:16,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:16,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:16,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:16,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:16,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:28:16,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:16,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:16,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:16,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:16,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:16,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:28:16,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:16,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:16,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:16,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:16,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:16,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:16,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:16,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:16,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:16,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:16,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:16,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 22:28:16,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:16,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:16,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:16,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:16,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:16,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:16,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:16,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:16,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:28:16,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:16,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:16,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 22:28:16,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:16,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:16,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:16,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:16,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:16,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:16,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:16,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:16,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:28:16,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:16,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:16,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 22:28:16,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:16,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:16,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:16,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:16,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:16,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:28:16,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:16,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:16,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:28:16,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:16,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:16,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:28:16,404 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [39331783] [2020-09-24 22:28:16,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:28:16,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 22:28:16,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923370467] [2020-09-24 22:28:16,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 22:28:16,415 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:28:16,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 22:28:16,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:28:16,435 INFO L87 Difference]: Start difference. First operand 281 states. Second operand 3 states. [2020-09-24 22:28:17,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:28:17,653 INFO L93 Difference]: Finished difference Result 394 states and 471 transitions. [2020-09-24 22:28:17,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 22:28:17,655 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 22:28:17,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:28:17,674 INFO L225 Difference]: With dead ends: 394 [2020-09-24 22:28:17,675 INFO L226 Difference]: Without dead ends: 254 [2020-09-24 22:28:17,680 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 22:28:17,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-09-24 22:28:17,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 214. [2020-09-24 22:28:17,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-09-24 22:28:17,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 229 transitions. [2020-09-24 22:28:17,775 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 229 transitions. Word has length 153 [2020-09-24 22:28:17,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:28:17,776 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 229 transitions. [2020-09-24 22:28:17,776 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 22:28:17,776 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 229 transitions. [2020-09-24 22:28:17,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 22:28:17,781 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:28:17,781 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] [2020-09-24 22:28:17,781 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 22:28:17,782 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:28:17,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:28:17,782 INFO L82 PathProgramCache]: Analyzing trace with hash 418244228, now seen corresponding path program 1 times [2020-09-24 22:28:17,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:28:17,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [138083552] [2020-09-24 22:28:17,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:28:17,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:17,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:17,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:19,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:22,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:22,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 22:28:22,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:28:22,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-24 22:28:22,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:22,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:22,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 22:28:22,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 22:28:22,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:23,197 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:28:23,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:28:23,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:23,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:23,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:23,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:28:23,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:23,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-24 22:28:23,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:23,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:23,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:23,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:23,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:23,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:28:23,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:23,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:23,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:23,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:23,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:23,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:28:23,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:23,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:23,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:23,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:23,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:23,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:28:23,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:23,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:23,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:23,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:23,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:23,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:28:23,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:23,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:23,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:23,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:23,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:23,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:28:23,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:23,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:23,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:23,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:23,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:23,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:28:23,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:23,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:23,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:23,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:23,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:23,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:28:23,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:23,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:23,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:23,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:23,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:23,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 22:28:23,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:23,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:23,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:23,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:23,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:23,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 22:28:23,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:23,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:23,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:23,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:23,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:23,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:23,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:23,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:23,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:28:23,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:23,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:23,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 22:28:23,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:23,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:23,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:23,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:23,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:23,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:23,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:23,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:23,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:28:23,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:23,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:23,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 22:28:23,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:23,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:23,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:23,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:23,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:23,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:23,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:23,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:23,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:28:23,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:23,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:23,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:28:23,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [138083552] [2020-09-24 22:28:23,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:28:23,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 22:28:23,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784823105] [2020-09-24 22:28:23,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 22:28:23,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:28:23,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 22:28:23,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 22:28:23,424 INFO L87 Difference]: Start difference. First operand 214 states and 229 transitions. Second operand 4 states. [2020-09-24 22:28:23,999 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:28:24,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:28:24,634 INFO L93 Difference]: Finished difference Result 298 states and 332 transitions. [2020-09-24 22:28:24,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 22:28:24,635 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 22:28:24,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:28:24,639 INFO L225 Difference]: With dead ends: 298 [2020-09-24 22:28:24,639 INFO L226 Difference]: Without dead ends: 237 [2020-09-24 22:28:24,643 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:28:24,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-09-24 22:28:24,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 204. [2020-09-24 22:28:24,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2020-09-24 22:28:24,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 216 transitions. [2020-09-24 22:28:24,708 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 216 transitions. Word has length 154 [2020-09-24 22:28:24,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:28:24,711 INFO L479 AbstractCegarLoop]: Abstraction has 204 states and 216 transitions. [2020-09-24 22:28:24,711 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 22:28:24,711 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 216 transitions. [2020-09-24 22:28:24,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 22:28:24,719 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:28:24,720 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] [2020-09-24 22:28:24,720 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 22:28:24,720 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:28:24,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:28:24,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1459194471, now seen corresponding path program 1 times [2020-09-24 22:28:24,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:28:24,721 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [522504961] [2020-09-24 22:28:24,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:28:24,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:24,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:25,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:27,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:27,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 22:28:27,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 22:28:27,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2964 [2020-09-24 22:28:27,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:27,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:27,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 22:28:27,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 22:28:27,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:28,113 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:28:28,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:28:28,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:28,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:28,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:28,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:28:28,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:28,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-24 22:28:28,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:28,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:28,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:28,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:28,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:28,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:28:28,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:28,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:28,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:28,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:28,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:28,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:28:28,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:28,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:28,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:28,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:28,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:28,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:28:28,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:28,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:28,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:28,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:28,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:28,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:28,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:28,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:28,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:28,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:28,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:28,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:28:28,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:28,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:28,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:28,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:28,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:28,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:28:28,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:28,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:28,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:28,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:28,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:28,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:28:28,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:28,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:28,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:28,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:28,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:28,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:28:28,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:28,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:28,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:28,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:28,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:28,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 22:28:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:28,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:28,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:28,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:28:28,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:28,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:28:28,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:28,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:28,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:28,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 22:28:28,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:28,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 22:28:28,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:28,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:28,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:28,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:28,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:28,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:28:28,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:28,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:28,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:28:28,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:28,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 22:28:28,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 22:28:28,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:28,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:28,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:28,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:28,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:28,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:28:28,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:28,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:28,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:28:28,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:28,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:28,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-24 22:28:28,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:28,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:28,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:28,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:28,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:28,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:28,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:28,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:28,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:28:28,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:28,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:28,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:28:28,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [522504961] [2020-09-24 22:28:28,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:28:28,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 22:28:28,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064730340] [2020-09-24 22:28:28,503 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 22:28:28,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:28:28,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 22:28:28,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 22:28:28,506 INFO L87 Difference]: Start difference. First operand 204 states and 216 transitions. Second operand 5 states. [2020-09-24 22:28:29,018 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:28:30,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:28:30,278 INFO L93 Difference]: Finished difference Result 454 states and 523 transitions. [2020-09-24 22:28:30,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 22:28:30,279 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-24 22:28:30,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:28:30,284 INFO L225 Difference]: With dead ends: 454 [2020-09-24 22:28:30,284 INFO L226 Difference]: Without dead ends: 360 [2020-09-24 22:28:30,285 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 22:28:30,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-09-24 22:28:30,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 282. [2020-09-24 22:28:30,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-09-24 22:28:30,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 305 transitions. [2020-09-24 22:28:30,335 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 305 transitions. Word has length 167 [2020-09-24 22:28:30,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:28:30,335 INFO L479 AbstractCegarLoop]: Abstraction has 282 states and 305 transitions. [2020-09-24 22:28:30,336 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 22:28:30,336 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 305 transitions. [2020-09-24 22:28:30,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-24 22:28:30,338 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:28:30,338 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] [2020-09-24 22:28:30,338 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 22:28:30,338 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:28:30,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:28:30,339 INFO L82 PathProgramCache]: Analyzing trace with hash -651029142, now seen corresponding path program 1 times [2020-09-24 22:28:30,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:28:30,339 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1424554020] [2020-09-24 22:28:30,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:28:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:30,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:32,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:32,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 22:28:32,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:32,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1816 [2020-09-24 22:28:32,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:32,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 22:28:32,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 22:28:32,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-24 22:28:32,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:32,525 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:28:32,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:28:32,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:32,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:32,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:32,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:28:32,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:32,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-09-24 22:28:32,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:32,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:32,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:32,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 22:28:32,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:32,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:28:32,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:32,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:32,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:32,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:32,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:32,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:28:32,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:32,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:32,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:32,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:28:32,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:32,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:28:32,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:32,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:32,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:32,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:32,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:32,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:32,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:32,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:32,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:32,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:28:32,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:32,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:28:32,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:32,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:32,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:32,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:32,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:32,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 22:28:32,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:32,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:32,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:32,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:28:32,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:32,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:28:32,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:32,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:32,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:32,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:32,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:32,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:32,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:32,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:32,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:32,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:28:32,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:32,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 22:28:32,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:32,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:32,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:32,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:28:32,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:32,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:28:32,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:32,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:32,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:32,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 22:28:32,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:32,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 22:28:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:32,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:32,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:32,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:32,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:32,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:28:32,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:32,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:32,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:32,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:28:32,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:32,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 22:28:32,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:32,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:32,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:32,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:32,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:32,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:28:32,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:32,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:32,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:32,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:28:32,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:32,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 22:28:32,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:32,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:32,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:32,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:32,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:32,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 22:28:32,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:32,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:28:32,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:32,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:28:32,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 22:28:32,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-24 22:28:32,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:32,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:32,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:32,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:32,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:32,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:32,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:32,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:32,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 22:28:32,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:32,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:32,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:28:32,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1424554020] [2020-09-24 22:28:32,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:28:32,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 22:28:32,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767258990] [2020-09-24 22:28:32,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 22:28:32,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:28:32,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 22:28:32,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 22:28:32,996 INFO L87 Difference]: Start difference. First operand 282 states and 305 transitions. Second operand 9 states. [2020-09-24 22:28:33,727 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:28:35,145 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:28:35,505 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:28:35,817 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:28:36,152 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 22:28:36,459 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:28:36,787 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:28:37,065 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:28:37,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:28:37,552 INFO L93 Difference]: Finished difference Result 688 states and 810 transitions. [2020-09-24 22:28:37,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 22:28:37,552 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 170 [2020-09-24 22:28:37,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:28:37,557 INFO L225 Difference]: With dead ends: 688 [2020-09-24 22:28:37,558 INFO L226 Difference]: Without dead ends: 516 [2020-09-24 22:28:37,560 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 22:28:37,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2020-09-24 22:28:37,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 437. [2020-09-24 22:28:37,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-09-24 22:28:37,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 487 transitions. [2020-09-24 22:28:37,656 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 487 transitions. Word has length 170 [2020-09-24 22:28:37,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:28:37,657 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 487 transitions. [2020-09-24 22:28:37,657 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 22:28:37,657 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 487 transitions. [2020-09-24 22:28:37,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-24 22:28:37,661 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:28:37,661 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:28:37,661 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 22:28:37,661 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:28:37,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:28:37,662 INFO L82 PathProgramCache]: Analyzing trace with hash -720155991, now seen corresponding path program 1 times [2020-09-24 22:28:37,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:28:37,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2135874996] [2020-09-24 22:28:37,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:28:37,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:37,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:38,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:39,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:42,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:42,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-09-24 22:28:42,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 22:28:42,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-24 22:28:42,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:42,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 22:28:42,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-24 22:28:42,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-24 22:28:42,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:43,008 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 22:28:43,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 22:28:43,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:43,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:43,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:43,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 22:28:43,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:43,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-24 22:28:43,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:43,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:43,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:43,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:43,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:43,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 22:28:43,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:43,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:43,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:43,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:43,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:43,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:43,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:43,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:43,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:43,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:43,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:43,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 22:28:43,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:43,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:43,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:43,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:43,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:43,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 22:28:43,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:43,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:43,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:43,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:43,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:43,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 22:28:43,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:43,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:43,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:43,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:43,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:43,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 22:28:43,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:43,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:43,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:43,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:43,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:43,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 22:28:43,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:43,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:43,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:43,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:43,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:43,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:28:43,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:43,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:43,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:43,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:43,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:43,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 22:28:43,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:43,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:43,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:43,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 22:28:43,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:43,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:28:43,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:43,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 22:28:43,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:43,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 22:28:43,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 22:28:43,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 22:28:43,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:43,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:43,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:43,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 22:28:43,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:43,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:28:43,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:43,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:43,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:43,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 22:28:43,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:43,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 22:28:43,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:43,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:43,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:43,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 22:28:43,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:43,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 22:28:43,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:43,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:43,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:43,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 22:28:43,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:43,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-24 22:28:43,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:43,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:43,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:43,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:43,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:43,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:28:43,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:43,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:43,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:43,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:28:43,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:43,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-24 22:28:43,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:43,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:43,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:43,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:43,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:43,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 22:28:43,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:43,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 22:28:43,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:43,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:28:43,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:43,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-24 22:28:43,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 22:28:43,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 22:28:43,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 22:28:43,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 22:28:43,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 22:28:43,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 22:28:43,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 22:28:43,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 22:28:43,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 22:28:43,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 22:28:43,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 22:28:43,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 22:28:43,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2135874996] [2020-09-24 22:28:43,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 22:28:43,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 22:28:43,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702814421] [2020-09-24 22:28:43,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 22:28:43,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 22:28:43,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 22:28:43,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 22:28:43,463 INFO L87 Difference]: Start difference. First operand 437 states and 487 transitions. Second operand 10 states. [2020-09-24 22:28:44,784 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 22:28:45,039 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-09-24 22:28:46,331 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 22:28:46,676 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 22:28:47,108 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-09-24 22:28:47,486 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:28:47,854 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 22:28:48,179 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 22:28:48,450 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 22:28:49,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 22:28:49,063 INFO L93 Difference]: Finished difference Result 889 states and 1047 transitions. [2020-09-24 22:28:49,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-24 22:28:49,063 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 175 [2020-09-24 22:28:49,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 22:28:49,069 INFO L225 Difference]: With dead ends: 889 [2020-09-24 22:28:49,070 INFO L226 Difference]: Without dead ends: 699 [2020-09-24 22:28:49,071 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=168, Invalid=482, Unknown=0, NotChecked=0, Total=650 [2020-09-24 22:28:49,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2020-09-24 22:28:49,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 592. [2020-09-24 22:28:49,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2020-09-24 22:28:49,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 664 transitions. [2020-09-24 22:28:49,177 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 664 transitions. Word has length 175 [2020-09-24 22:28:49,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 22:28:49,177 INFO L479 AbstractCegarLoop]: Abstraction has 592 states and 664 transitions. [2020-09-24 22:28:49,177 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 22:28:49,178 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 664 transitions. [2020-09-24 22:28:49,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-24 22:28:49,181 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 22:28:49,181 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 22:28:49,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 22:28:49,182 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 22:28:49,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 22:28:49,182 INFO L82 PathProgramCache]: Analyzing trace with hash 232069563, now seen corresponding path program 1 times [2020-09-24 22:28:49,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 22:28:49,183 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [150143681] [2020-09-24 22:28:49,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 22:28:49,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 22:28:49,246 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 22:28:49,246 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 22:28:49,251 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 22:28:49,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 10:28:49 BoogieIcfgContainer [2020-09-24 22:28:49,278 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 22:28:49,281 INFO L168 Benchmark]: Toolchain (without parser) took 40995.91 ms. Allocated memory was 147.8 MB in the beginning and 666.4 MB in the end (delta: 518.5 MB). Free memory was 103.3 MB in the beginning and 567.9 MB in the end (delta: -464.6 MB). Peak memory consumption was 53.9 MB. Max. memory is 7.1 GB. [2020-09-24 22:28:49,281 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 147.8 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 22:28:49,282 INFO L168 Benchmark]: CACSL2BoogieTranslator took 645.07 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 102.6 MB in the beginning and 173.6 MB in the end (delta: -71.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-09-24 22:28:49,283 INFO L168 Benchmark]: Boogie Preprocessor took 94.39 ms. Allocated memory is still 205.0 MB. Free memory was 173.6 MB in the beginning and 169.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-24 22:28:49,284 INFO L168 Benchmark]: RCFGBuilder took 1222.49 ms. Allocated memory was 205.0 MB in the beginning and 234.9 MB in the end (delta: 29.9 MB). Free memory was 169.5 MB in the beginning and 176.5 MB in the end (delta: -7.0 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB. [2020-09-24 22:28:49,285 INFO L168 Benchmark]: TraceAbstraction took 39025.28 ms. Allocated memory was 234.9 MB in the beginning and 666.4 MB in the end (delta: 431.5 MB). Free memory was 176.5 MB in the beginning and 567.9 MB in the end (delta: -391.3 MB). Peak memory consumption was 40.2 MB. Max. memory is 7.1 GB. [2020-09-24 22:28:49,288 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 147.8 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 645.07 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 102.6 MB in the beginning and 173.6 MB in the end (delta: -71.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 94.39 ms. Allocated memory is still 205.0 MB. Free memory was 173.6 MB in the beginning and 169.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1222.49 ms. Allocated memory was 205.0 MB in the beginning and 234.9 MB in the end (delta: 29.9 MB). Free memory was 169.5 MB in the beginning and 176.5 MB in the end (delta: -7.0 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 39025.28 ms. Allocated memory was 234.9 MB in the beginning and 666.4 MB in the end (delta: 431.5 MB). Free memory was 176.5 MB in the beginning and 567.9 MB in the end (delta: -391.3 MB). Peak memory consumption was 40.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 890]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L158] int pumpRunning = 0; [L159] int systemActive = 1; [L306] int waterLevel = 1; [L307] int methaneLevelCritical = 0; [L593] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L790] int cleanupTimeShifts = 4; [L863] int retValue_acc ; [L864] int tmp ; [L868] FCALL select_helpers() [L869] FCALL select_features() [L870] CALL, EXPR valid_product() [L415] int retValue_acc ; [L418] retValue_acc = 1 [L419] return (retValue_acc); [L870] RET, EXPR valid_product() [L870] tmp = valid_product() [L872] COND TRUE \read(tmp) [L874] FCALL setup() [L875] CALL runTest() [L857] CALL test() [L85] int splverifierCounter ; [L86] int tmp ; [L87] int tmp___0 ; [L88] int tmp___1 ; [L89] int tmp___2 ; [L92] splverifierCounter = 0 [L94] COND TRUE 1 [L96] COND TRUE splverifierCounter < 4 [L102] tmp = __VERIFIER_nondet_int() [L104] COND TRUE \read(tmp) [L106] CALL waterRise() [L324] COND TRUE waterLevel < 2 [L325] waterLevel = waterLevel + 1 [L106] RET waterRise() [L112] tmp___0 = __VERIFIER_nondet_int() [L114] COND FALSE !(\read(tmp___0)) [L122] tmp___2 = __VERIFIER_nondet_int() [L124] COND TRUE \read(tmp___2) [L126] CALL startSystem() [L301] systemActive = 1 [L126] RET startSystem() [L141] CALL timeShift() [L165] COND FALSE !(\read(pumpRunning)) [L172] COND TRUE \read(systemActive) [L174] FCALL processEnvironment() [L180] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L345] int retValue_acc ; [L348] retValue_acc = methaneLevelCritical [L349] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L377] int retValue_acc ; [L380] retValue_acc = waterLevel [L381] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L238] int retValue_acc ; [L241] retValue_acc = pumpRunning [L242] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L890] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 597 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 38.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 14.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1092 SDtfs, 1339 SDslu, 1628 SDs, 0 SdLazy, 3056 SolverSat, 409 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 154 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=592occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 337 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 23.1s InterpolantComputationTime, 994 NumberOfCodeBlocks, 994 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 814 ConstructedInterpolants, 0 QuantifiedInterpolants, 325622 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...