/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 07:10:44,674 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 07:10:44,677 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 07:10:44,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 07:10:44,719 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 07:10:44,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 07:10:44,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 07:10:44,732 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 07:10:44,735 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 07:10:44,738 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 07:10:44,739 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 07:10:44,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 07:10:44,740 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 07:10:44,743 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 07:10:44,746 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 07:10:44,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 07:10:44,749 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 07:10:44,750 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 07:10:44,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 07:10:44,757 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 07:10:44,758 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 07:10:44,759 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 07:10:44,760 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 07:10:44,761 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 07:10:44,763 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 07:10:44,763 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 07:10:44,763 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 07:10:44,764 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 07:10:44,765 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 07:10:44,765 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 07:10:44,766 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 07:10:44,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 07:10:44,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 07:10:44,768 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 07:10:44,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 07:10:44,769 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 07:10:44,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 07:10:44,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 07:10:44,770 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 07:10:44,771 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 07:10:44,771 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 07:10:44,772 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 07:10:44,793 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 07:10:44,794 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 07:10:44,795 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 07:10:44,795 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 07:10:44,795 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 07:10:44,796 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 07:10:44,796 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 07:10:44,796 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 07:10:44,796 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 07:10:44,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 07:10:44,796 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 07:10:44,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 07:10:44,797 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 07:10:44,797 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 07:10:44,797 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 07:10:44,797 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 07:10:44,798 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 07:10:44,798 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 07:10:44,798 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 07:10:44,798 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 07:10:44,798 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 07:10:44,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:10:44,799 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 07:10:44,799 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 07:10:44,799 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 07:10:44,799 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 07:10:44,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 07:10:44,800 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 07:10:44,800 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 07:10:44,800 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 07:10:45,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 07:10:45,138 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 07:10:45,141 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 07:10:45,143 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 07:10:45,143 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 07:10:45,144 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-10-14 07:10:45,204 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a55dc467a/cf5a9b48e88d41c8a3fa43ca95badf97/FLAG83635dc73 [2020-10-14 07:10:45,724 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 07:10:45,725 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-10-14 07:10:45,739 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a55dc467a/cf5a9b48e88d41c8a3fa43ca95badf97/FLAG83635dc73 [2020-10-14 07:10:46,011 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a55dc467a/cf5a9b48e88d41c8a3fa43ca95badf97 [2020-10-14 07:10:46,020 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 07:10:46,021 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 07:10:46,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 07:10:46,023 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 07:10:46,026 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 07:10:46,027 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:10:46" (1/1) ... [2020-10-14 07:10:46,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70179558 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:46, skipping insertion in model container [2020-10-14 07:10:46,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:10:46" (1/1) ... [2020-10-14 07:10:46,039 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 07:10:46,081 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 07:10:46,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:10:46,588 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 07:10:46,720 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:10:46,756 INFO L208 MainTranslator]: Completed translation [2020-10-14 07:10:46,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:46 WrapperNode [2020-10-14 07:10:46,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 07:10:46,757 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 07:10:46,757 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 07:10:46,758 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 07:10:46,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:46" (1/1) ... [2020-10-14 07:10:46,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:46" (1/1) ... [2020-10-14 07:10:46,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:46" (1/1) ... [2020-10-14 07:10:46,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:46" (1/1) ... [2020-10-14 07:10:46,825 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:46" (1/1) ... [2020-10-14 07:10:46,836 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:46" (1/1) ... [2020-10-14 07:10:46,842 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:46" (1/1) ... [2020-10-14 07:10:46,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 07:10:46,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 07:10:46,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 07:10:46,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 07:10:46,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:46" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:10:46,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 07:10:46,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 07:10:46,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-14 07:10:46,945 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-14 07:10:46,946 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-14 07:10:46,946 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-14 07:10:46,947 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-14 07:10:46,948 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-14 07:10:46,948 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-14 07:10:46,948 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-14 07:10:46,949 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-14 07:10:46,949 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-14 07:10:46,949 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-14 07:10:46,949 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-14 07:10:46,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-14 07:10:46,951 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-14 07:10:46,951 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-14 07:10:46,952 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-14 07:10:46,952 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-14 07:10:46,952 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 07:10:46,952 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-14 07:10:46,952 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-14 07:10:46,953 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-14 07:10:46,953 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-14 07:10:46,953 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-14 07:10:46,953 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-14 07:10:46,953 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-14 07:10:46,953 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-14 07:10:46,953 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-14 07:10:46,954 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-14 07:10:46,954 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-14 07:10:46,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-14 07:10:46,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-14 07:10:46,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-14 07:10:46,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-14 07:10:46,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-14 07:10:46,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-14 07:10:46,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-14 07:10:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 07:10:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 07:10:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-14 07:10:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-14 07:10:46,956 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-14 07:10:46,956 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-14 07:10:46,956 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-14 07:10:46,956 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-14 07:10:46,956 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-14 07:10:46,956 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-14 07:10:46,956 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-14 07:10:46,957 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-14 07:10:46,957 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-14 07:10:46,957 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-14 07:10:46,958 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-14 07:10:46,958 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-14 07:10:46,958 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-14 07:10:46,958 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-14 07:10:46,958 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-14 07:10:46,958 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-14 07:10:46,958 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-14 07:10:46,958 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-14 07:10:46,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 07:10:46,959 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-14 07:10:46,959 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-14 07:10:46,959 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-14 07:10:46,959 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-14 07:10:46,960 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-14 07:10:46,960 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-14 07:10:46,960 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-14 07:10:46,961 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-14 07:10:46,961 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 07:10:46,961 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-14 07:10:46,962 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-14 07:10:46,963 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 07:10:46,963 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 07:10:46,963 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-14 07:10:46,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 07:10:46,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 07:10:46,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 07:10:46,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 07:10:46,964 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-14 07:10:46,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 07:10:46,964 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-14 07:10:46,964 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-14 07:10:46,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 07:10:46,965 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-14 07:10:46,965 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-14 07:10:46,965 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-14 07:10:46,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 07:10:46,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-14 07:10:46,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 07:10:48,004 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 07:10:48,004 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-14 07:10:48,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:10:48 BoogieIcfgContainer [2020-10-14 07:10:48,009 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 07:10:48,011 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 07:10:48,011 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 07:10:48,014 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 07:10:48,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:10:46" (1/3) ... [2020-10-14 07:10:48,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b98efed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:10:48, skipping insertion in model container [2020-10-14 07:10:48,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:10:46" (2/3) ... [2020-10-14 07:10:48,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b98efed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:10:48, skipping insertion in model container [2020-10-14 07:10:48,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:10:48" (3/3) ... [2020-10-14 07:10:48,018 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product35.cil.c [2020-10-14 07:10:48,030 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 07:10:48,039 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 07:10:48,055 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 07:10:48,081 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 07:10:48,081 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 07:10:48,081 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 07:10:48,081 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 07:10:48,082 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 07:10:48,082 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 07:10:48,082 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 07:10:48,082 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 07:10:48,106 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states. [2020-10-14 07:10:48,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-14 07:10:48,117 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:10:48,118 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:10:48,119 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:10:48,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:10:48,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1153926417, now seen corresponding path program 1 times [2020-10-14 07:10:48,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:10:48,133 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [144984627] [2020-10-14 07:10:48,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:10:48,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:48,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:48,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:49,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:50,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:50,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 07:10:50,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:10:50,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2510 [2020-10-14 07:10:50,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:50,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:50,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:50,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-14 07:10:50,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:50,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-14 07:10:51,369 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:10:51,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:10:51,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:51,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:51,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:51,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:51,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:51,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 07:10:51,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:51,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:51,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:51,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:51,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:51,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:51,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:10:51,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:51,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:51,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:51,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:10:51,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:51,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:51,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:51,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:51,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:51,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:51,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:51,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:51,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:10:51,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:51,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:51,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:51,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:10:51,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:51,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:51,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:51,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:51,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:51,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:51,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:51,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:51,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:10:51,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:51,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:51,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:51,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:51,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:51,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:51,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:51,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:51,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:51,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:51,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:51,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:51,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:10:51,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:51,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:51,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:51,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:10:51,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:51,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:51,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:51,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:51,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:51,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:51,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:51,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:51,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 07:10:51,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:51,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:51,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:51,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:51,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:51,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:51,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:51,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:51,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:51,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:10:51,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:51,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:51,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 07:10:51,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:51,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:51,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:51,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:51,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:51,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:51,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:51,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:51,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:51,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:10:51,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:51,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:51,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 07:10:51,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:51,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:51,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:51,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:51,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:51,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:51,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:51,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:51,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:51,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:10:51,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:51,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:51,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:10:51,482 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [144984627] [2020-10-14 07:10:51,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:10:51,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 07:10:51,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133559654] [2020-10-14 07:10:51,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 07:10:51,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:10:51,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 07:10:51,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 07:10:51,508 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 3 states. [2020-10-14 07:10:52,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:10:52,706 INFO L93 Difference]: Finished difference Result 281 states and 368 transitions. [2020-10-14 07:10:52,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 07:10:52,708 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-10-14 07:10:52,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:10:52,722 INFO L225 Difference]: With dead ends: 281 [2020-10-14 07:10:52,722 INFO L226 Difference]: Without dead ends: 152 [2020-10-14 07:10:52,727 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 07:10:52,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-10-14 07:10:52,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 120. [2020-10-14 07:10:52,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-14 07:10:52,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 140 transitions. [2020-10-14 07:10:52,817 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 140 transitions. Word has length 52 [2020-10-14 07:10:52,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:10:52,818 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 140 transitions. [2020-10-14 07:10:52,818 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 07:10:52,818 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 140 transitions. [2020-10-14 07:10:52,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-14 07:10:52,822 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:10:52,822 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:10:52,822 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 07:10:52,822 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:10:52,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:10:52,823 INFO L82 PathProgramCache]: Analyzing trace with hash -548767927, now seen corresponding path program 1 times [2020-10-14 07:10:52,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:10:52,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [32348089] [2020-10-14 07:10:52,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:10:52,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:52,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:52,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:53,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:55,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:55,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 07:10:55,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:10:55,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2642 [2020-10-14 07:10:55,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:55,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:55,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:10:55,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-14 07:10:55,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 07:10:55,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:55,806 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:10:55,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:10:55,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:55,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:55,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:55,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:55,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:55,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 07:10:55,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:55,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:55,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:55,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:55,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:55,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:55,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:10:55,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:55,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:55,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:55,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:10:55,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:55,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:55,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:55,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:55,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:55,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:55,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:55,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:55,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:10:55,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:55,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:55,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:55,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:10:55,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:55,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:55,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:55,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:55,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:55,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:55,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:55,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:55,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:10:55,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:55,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:55,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:55,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:55,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:55,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:55,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:55,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:55,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:55,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:55,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:55,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:55,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:10:55,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:55,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:55,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:55,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:10:55,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:55,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:55,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:55,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:55,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:55,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:55,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:55,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:55,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 07:10:55,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:55,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:55,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:55,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:55,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:55,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:55,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:55,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:55,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:55,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:10:55,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:55,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:55,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 07:10:55,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:55,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:55,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:55,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:55,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:55,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:10:55,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:55,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:55,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:55,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:10:55,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:55,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:55,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 07:10:55,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:55,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:55,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:55,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:55,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:55,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:55,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:55,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:55,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:55,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:10:55,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:55,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:10:55,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:10:55,941 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [32348089] [2020-10-14 07:10:55,941 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:10:55,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 07:10:55,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169179001] [2020-10-14 07:10:55,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 07:10:55,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:10:55,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 07:10:55,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 07:10:55,945 INFO L87 Difference]: Start difference. First operand 120 states and 140 transitions. Second operand 4 states. [2020-10-14 07:10:56,759 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:10:57,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:10:57,508 INFO L93 Difference]: Finished difference Result 205 states and 249 transitions. [2020-10-14 07:10:57,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 07:10:57,509 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-14 07:10:57,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:10:57,513 INFO L225 Difference]: With dead ends: 205 [2020-10-14 07:10:57,513 INFO L226 Difference]: Without dead ends: 136 [2020-10-14 07:10:57,516 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 07:10:57,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-14 07:10:57,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 111. [2020-10-14 07:10:57,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-10-14 07:10:57,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 128 transitions. [2020-10-14 07:10:57,569 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 128 transitions. Word has length 53 [2020-10-14 07:10:57,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:10:57,570 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 128 transitions. [2020-10-14 07:10:57,570 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 07:10:57,570 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 128 transitions. [2020-10-14 07:10:57,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-14 07:10:57,578 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:10:57,579 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:10:57,579 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 07:10:57,579 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:10:57,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:10:57,579 INFO L82 PathProgramCache]: Analyzing trace with hash 196992317, now seen corresponding path program 1 times [2020-10-14 07:10:57,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:10:57,580 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2065455235] [2020-10-14 07:10:57,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:10:57,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:57,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:57,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:59,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:59,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 07:10:59,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:10:59,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1917 [2020-10-14 07:10:59,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:59,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:59,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 07:10:59,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:10:59,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-14 07:10:59,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:59,809 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:10:59,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:10:59,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:59,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:59,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:59,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:59,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:59,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 07:10:59,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:59,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:59,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:10:59,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:59,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:10:59,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:59,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:10:59,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:59,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:59,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:59,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:10:59,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:59,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:59,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:59,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:59,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:10:59,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:59,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:10:59,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:59,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:10:59,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:59,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:59,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:59,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:10:59,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:59,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:59,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:59,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:59,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:10:59,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:59,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:10:59,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:59,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:10:59,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:59,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:59,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:59,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:59,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:59,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:10:59,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:59,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:59,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:10:59,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:59,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:10:59,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:59,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:10:59,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:59,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:59,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:59,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:10:59,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:59,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:59,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:59,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:59,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:10:59,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:10:59,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:10:59,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:59,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-14 07:10:59,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:59,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:59,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:59,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:59,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:59,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:10:59,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:59,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:59,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:59,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:10:59,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:59,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:10:59,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 07:10:59,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:59,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:59,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:59,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:59,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:59,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:10:59,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:59,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:59,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:59,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:10:59,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:59,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:59,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:10:59,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:10:59,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:10:59,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:10:59,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:10:59,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:10:59,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 07:10:59,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:10:59,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:10:59,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:10:59,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:10:59,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:10:59,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:10:59,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:10:59,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2065455235] [2020-10-14 07:10:59,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:10:59,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 07:10:59,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143477410] [2020-10-14 07:10:59,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 07:10:59,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:10:59,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 07:10:59,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 07:10:59,996 INFO L87 Difference]: Start difference. First operand 111 states and 128 transitions. Second operand 4 states. [2020-10-14 07:11:00,301 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:11:01,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:11:01,632 INFO L93 Difference]: Finished difference Result 320 states and 392 transitions. [2020-10-14 07:11:01,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 07:11:01,633 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2020-10-14 07:11:01,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:11:01,636 INFO L225 Difference]: With dead ends: 320 [2020-10-14 07:11:01,636 INFO L226 Difference]: Without dead ends: 233 [2020-10-14 07:11:01,637 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 07:11:01,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2020-10-14 07:11:01,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 186. [2020-10-14 07:11:01,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-10-14 07:11:01,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 219 transitions. [2020-10-14 07:11:01,711 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 219 transitions. Word has length 57 [2020-10-14 07:11:01,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:11:01,712 INFO L479 AbstractCegarLoop]: Abstraction has 186 states and 219 transitions. [2020-10-14 07:11:01,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 07:11:01,712 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 219 transitions. [2020-10-14 07:11:01,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-14 07:11:01,714 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:11:01,714 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:11:01,714 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 07:11:01,714 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:11:01,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:11:01,715 INFO L82 PathProgramCache]: Analyzing trace with hash 925372224, now seen corresponding path program 1 times [2020-10-14 07:11:01,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:11:01,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1640473714] [2020-10-14 07:11:01,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:11:01,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:01,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:02,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:02,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 07:11:02,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:02,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 918 [2020-10-14 07:11:02,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:02,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:02,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 07:11:02,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:11:02,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 07:11:02,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:11:03,047 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:11:03,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:11:03,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:03,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:03,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:03,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:11:03,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:03,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 07:11:03,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:03,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:03,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:11:03,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:03,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:11:03,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:03,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:11:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:03,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:03,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:03,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:11:03,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:03,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:11:03,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:03,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:03,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:11:03,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:03,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:11:03,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:11:03,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:11:03,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:03,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:03,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:03,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:11:03,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:03,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:11:03,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:03,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:03,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:11:03,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:03,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:11:03,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:11:03,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:11:03,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:03,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:03,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:03,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:11:03,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:03,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:11:03,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:03,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:03,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:11:03,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:03,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:11:03,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:03,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:11:03,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:03,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:03,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:03,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:11:03,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:03,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:11:03,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:03,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:03,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:11:03,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:03,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:11:03,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:03,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 07:11:03,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:03,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:03,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:03,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:11:03,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:03,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:11:03,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:03,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:03,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:11:03,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:03,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:11:03,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:03,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 07:11:03,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:03,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:03,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:03,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:11:03,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:03,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:11:03,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:03,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:03,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:11:03,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:03,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:11:03,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:11:03,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 07:11:03,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:03,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:03,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:03,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:11:03,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:03,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:11:03,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:03,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:03,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:11:03,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:11:03,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:11:03,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:11:03,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 07:11:03,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:11:03,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:11:03,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:11:03,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:11:03,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:11:03,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:11:03,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:11:03,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:11:03,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:11:03,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:11:03,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:11:03,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 07:11:03,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:11:03,271 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1640473714] [2020-10-14 07:11:03,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:11:03,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 07:11:03,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943870444] [2020-10-14 07:11:03,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 07:11:03,273 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:11:03,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 07:11:03,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 07:11:03,274 INFO L87 Difference]: Start difference. First operand 186 states and 219 transitions. Second operand 8 states. [2020-10-14 07:11:03,691 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:11:04,980 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-14 07:11:05,309 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:11:05,568 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:11:05,820 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:11:06,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:11:06,505 INFO L93 Difference]: Finished difference Result 570 states and 742 transitions. [2020-10-14 07:11:06,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 07:11:06,508 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-10-14 07:11:06,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:11:06,512 INFO L225 Difference]: With dead ends: 570 [2020-10-14 07:11:06,512 INFO L226 Difference]: Without dead ends: 408 [2020-10-14 07:11:06,514 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-14 07:11:06,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2020-10-14 07:11:06,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 347. [2020-10-14 07:11:06,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2020-10-14 07:11:06,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 417 transitions. [2020-10-14 07:11:06,598 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 417 transitions. Word has length 63 [2020-10-14 07:11:06,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:11:06,599 INFO L479 AbstractCegarLoop]: Abstraction has 347 states and 417 transitions. [2020-10-14 07:11:06,599 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 07:11:06,599 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 417 transitions. [2020-10-14 07:11:06,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 07:11:06,606 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:11:06,607 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:11:06,607 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 07:11:06,607 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:11:06,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:11:06,607 INFO L82 PathProgramCache]: Analyzing trace with hash -910069242, now seen corresponding path program 1 times [2020-10-14 07:11:06,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:11:06,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1388550076] [2020-10-14 07:11:06,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:11:06,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 07:11:06,647 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 07:11:06,648 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 07:11:06,652 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 07:11:06,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:11:06 BoogieIcfgContainer [2020-10-14 07:11:06,675 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 07:11:06,680 INFO L168 Benchmark]: Toolchain (without parser) took 20655.63 ms. Allocated memory was 146.8 MB in the beginning and 539.0 MB in the end (delta: 392.2 MB). Free memory was 102.4 MB in the beginning and 358.1 MB in the end (delta: -255.8 MB). Peak memory consumption was 136.4 MB. Max. memory is 7.1 GB. [2020-10-14 07:11:06,681 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-10-14 07:11:06,682 INFO L168 Benchmark]: CACSL2BoogieTranslator took 734.49 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 102.4 MB in the beginning and 172.9 MB in the end (delta: -70.6 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-10-14 07:11:06,683 INFO L168 Benchmark]: Boogie Preprocessor took 92.90 ms. Allocated memory is still 203.9 MB. Free memory was 172.9 MB in the beginning and 168.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-10-14 07:11:06,684 INFO L168 Benchmark]: RCFGBuilder took 1159.05 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 168.1 MB in the beginning and 198.0 MB in the end (delta: -30.0 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB. [2020-10-14 07:11:06,685 INFO L168 Benchmark]: TraceAbstraction took 18664.64 ms. Allocated memory was 235.9 MB in the beginning and 539.0 MB in the end (delta: 303.0 MB). Free memory was 196.3 MB in the beginning and 358.1 MB in the end (delta: -161.8 MB). Peak memory consumption was 141.3 MB. Max. memory is 7.1 GB. [2020-10-14 07:11:06,689 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 734.49 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 102.4 MB in the beginning and 172.9 MB in the end (delta: -70.6 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.90 ms. Allocated memory is still 203.9 MB. Free memory was 172.9 MB in the beginning and 168.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1159.05 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 168.1 MB in the beginning and 198.0 MB in the end (delta: -30.0 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18664.64 ms. Allocated memory was 235.9 MB in the beginning and 539.0 MB in the end (delta: 303.0 MB). Free memory was 196.3 MB in the beginning and 358.1 MB in the end (delta: -161.8 MB). Peak memory consumption was 141.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 556]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L324] int cleanupTimeShifts = 4; [L423] int waterLevel = 1; [L424] int methaneLevelCritical = 0; [L730] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L400] int retValue_acc ; [L401] int tmp ; [L405] FCALL select_helpers() [L406] FCALL select_features() [L407] CALL, EXPR valid_product() [L543] int retValue_acc ; [L546] retValue_acc = 1 [L547] return (retValue_acc); [L407] RET, EXPR valid_product() [L407] tmp = valid_product() [L409] COND TRUE \read(tmp) [L411] FCALL setup() [L412] CALL runTest() [L391] CALL test() [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) [L67] CALL waterRise() [L441] COND TRUE waterLevel < 2 [L442] waterLevel = waterLevel + 1 [L67] RET waterRise() [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___2)) [L89] tmp___1 = __VERIFIER_nondet_int() [L91] COND TRUE \read(tmp___1) [L93] CALL stopSystem() [L276] COND FALSE !(\read(pumpRunning)) [L283] systemActive = 0 [L93] RET stopSystem() [L100] CALL timeShift() [L128] COND FALSE !(\read(pumpRunning)) [L135] COND FALSE !(\read(systemActive)) [L143] CALL __utac_acc__Specification3_spec__1() [L291] int tmp ; [L292] int tmp___0 ; [L293] int tmp___1 ; [L297] CALL, EXPR isMethaneLevelCritical() [L462] int retValue_acc ; [L465] retValue_acc = methaneLevelCritical [L466] return (retValue_acc); [L297] RET, EXPR isMethaneLevelCritical() [L297] tmp = isMethaneLevelCritical() [L299] COND FALSE !(\read(tmp)) [L303] CALL, EXPR getWaterLevel() [L494] int retValue_acc ; [L497] retValue_acc = waterLevel [L498] return (retValue_acc); [L303] RET, EXPR getWaterLevel() [L303] tmp___0 = getWaterLevel() [L305] COND TRUE tmp___0 == 2 [L307] CALL, EXPR isPumpRunning() [L209] int retValue_acc ; [L212] retValue_acc = pumpRunning [L213] return (retValue_acc); [L307] RET, EXPR isPumpRunning() [L307] tmp___1 = isPumpRunning() [L309] COND FALSE !(\read(tmp___1)) [L313] CALL __automaton_fail() [L556] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 224 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 7.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 451 SDtfs, 544 SDslu, 228 SDs, 0 SdLazy, 1140 SolverSat, 300 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=347occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 165 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 10.0s InterpolantComputationTime, 292 NumberOfCodeBlocks, 292 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 60956 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...