/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=NARROWEST --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_product12.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 12:41:29,907 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 12:41:29,911 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 12:41:29,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 12:41:29,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 12:41:29,958 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 12:41:29,960 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 12:41:29,963 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 12:41:29,966 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 12:41:29,969 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 12:41:29,970 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 12:41:29,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 12:41:29,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 12:41:29,974 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 12:41:29,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 12:41:29,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 12:41:29,980 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 12:41:29,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 12:41:29,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 12:41:29,991 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 12:41:29,993 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 12:41:29,994 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 12:41:29,995 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 12:41:29,995 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 12:41:30,007 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 12:41:30,008 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 12:41:30,008 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 12:41:30,009 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 12:41:30,015 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 12:41:30,016 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 12:41:30,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 12:41:30,017 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 12:41:30,018 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 12:41:30,018 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 12:41:30,022 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 12:41:30,023 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 12:41:30,025 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 12:41:30,025 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 12:41:30,026 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 12:41:30,026 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 12:41:30,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 12:41:30,029 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 [2020-10-13 12:41:30,067 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 12:41:30,067 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 12:41:30,068 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 12:41:30,068 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 12:41:30,069 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 12:41:30,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 12:41:30,069 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 12:41:30,069 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 12:41:30,069 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 12:41:30,070 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 12:41:30,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 12:41:30,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 12:41:30,070 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 12:41:30,070 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 12:41:30,071 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 12:41:30,071 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 12:41:30,071 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 12:41:30,071 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 12:41:30,071 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 12:41:30,072 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 12:41:30,072 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 12:41:30,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 12:41:30,072 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 12:41:30,072 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 12:41:30,073 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 12:41:30,073 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 12:41:30,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 12:41:30,073 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 12:41:30,073 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 12:41:30,074 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 12:41:30,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 12:41:30,370 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 12:41:30,374 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 12:41:30,375 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 12:41:30,376 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 12:41:30,377 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product12.cil.c [2020-10-13 12:41:30,462 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3194ad99b/a131d35ced564acdad03a6cc4924ebb1/FLAGcf15785d9 [2020-10-13 12:41:31,003 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 12:41:31,003 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product12.cil.c [2020-10-13 12:41:31,016 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3194ad99b/a131d35ced564acdad03a6cc4924ebb1/FLAGcf15785d9 [2020-10-13 12:41:31,307 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3194ad99b/a131d35ced564acdad03a6cc4924ebb1 [2020-10-13 12:41:31,314 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 12:41:31,316 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 12:41:31,317 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 12:41:31,317 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 12:41:31,321 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 12:41:31,322 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:41:31" (1/1) ... [2020-10-13 12:41:31,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@387f035d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:31, skipping insertion in model container [2020-10-13 12:41:31,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:41:31" (1/1) ... [2020-10-13 12:41:31,336 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 12:41:31,398 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 12:41:31,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:41:31,823 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 12:41:31,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:41:31,980 INFO L208 MainTranslator]: Completed translation [2020-10-13 12:41:31,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:31 WrapperNode [2020-10-13 12:41:31,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 12:41:31,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 12:41:31,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 12:41:31,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 12:41:31,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:31" (1/1) ... [2020-10-13 12:41:31,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:31" (1/1) ... [2020-10-13 12:41:32,011 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:31" (1/1) ... [2020-10-13 12:41:32,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:31" (1/1) ... [2020-10-13 12:41:32,046 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:31" (1/1) ... [2020-10-13 12:41:32,059 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:31" (1/1) ... [2020-10-13 12:41:32,064 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:31" (1/1) ... [2020-10-13 12:41:32,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 12:41:32,072 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 12:41:32,072 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 12:41:32,073 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 12:41:32,073 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:31" (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 [2020-10-13 12:41:32,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 12:41:32,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 12:41:32,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-13 12:41:32,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-13 12:41:32,149 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-13 12:41:32,149 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-13 12:41:32,149 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-13 12:41:32,150 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-10-13 12:41:32,150 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-13 12:41:32,150 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-13 12:41:32,151 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-13 12:41:32,151 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-13 12:41:32,151 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-13 12:41:32,151 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-13 12:41:32,151 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-13 12:41:32,152 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-13 12:41:32,152 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-13 12:41:32,152 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-13 12:41:32,153 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-13 12:41:32,153 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-13 12:41:32,153 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-13 12:41:32,153 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-13 12:41:32,153 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-13 12:41:32,154 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-13 12:41:32,154 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-13 12:41:32,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-13 12:41:32,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-13 12:41:32,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-13 12:41:32,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-13 12:41:32,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-13 12:41:32,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-13 12:41:32,155 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-13 12:41:32,156 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-13 12:41:32,156 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-13 12:41:32,156 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-13 12:41:32,156 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 12:41:32,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-13 12:41:32,156 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 12:41:32,156 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 12:41:32,157 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-13 12:41:32,157 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-13 12:41:32,157 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-13 12:41:32,157 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-13 12:41:32,157 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-13 12:41:32,157 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-13 12:41:32,157 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-13 12:41:32,159 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-13 12:41:32,159 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-13 12:41:32,159 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-13 12:41:32,159 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-13 12:41:32,160 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-13 12:41:32,160 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-13 12:41:32,160 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-13 12:41:32,160 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-13 12:41:32,160 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-13 12:41:32,161 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-13 12:41:32,161 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-13 12:41:32,161 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-13 12:41:32,161 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-10-13 12:41:32,161 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-13 12:41:32,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 12:41:32,162 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-13 12:41:32,162 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-13 12:41:32,162 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-13 12:41:32,162 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-13 12:41:32,162 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-13 12:41:32,162 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 12:41:32,163 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 12:41:32,163 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-13 12:41:32,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 12:41:32,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 12:41:32,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 12:41:32,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 12:41:32,165 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-13 12:41:32,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 12:41:32,165 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-13 12:41:32,166 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-13 12:41:32,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 12:41:32,166 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-13 12:41:32,166 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-13 12:41:32,166 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-13 12:41:32,166 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-13 12:41:32,167 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-13 12:41:32,167 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-13 12:41:32,168 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 12:41:32,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 12:41:32,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 12:41:32,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 12:41:33,125 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 12:41:33,125 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-13 12:41:33,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:41:33 BoogieIcfgContainer [2020-10-13 12:41:33,130 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 12:41:33,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 12:41:33,132 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 12:41:33,135 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 12:41:33,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:41:31" (1/3) ... [2020-10-13 12:41:33,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75a1b803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:41:33, skipping insertion in model container [2020-10-13 12:41:33,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:31" (2/3) ... [2020-10-13 12:41:33,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75a1b803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:41:33, skipping insertion in model container [2020-10-13 12:41:33,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:41:33" (3/3) ... [2020-10-13 12:41:33,139 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product12.cil.c [2020-10-13 12:41:33,149 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 12:41:33,157 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 12:41:33,171 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 12:41:33,197 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 12:41:33,197 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 12:41:33,197 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 12:41:33,197 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 12:41:33,198 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 12:41:33,198 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 12:41:33,198 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 12:41:33,198 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 12:41:33,221 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states. [2020-10-13 12:41:33,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-13 12:41:33,231 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:41:33,232 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] [2020-10-13 12:41:33,232 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:41:33,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:41:33,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1715921214, now seen corresponding path program 1 times [2020-10-13 12:41:33,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:41:33,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1174092211] [2020-10-13 12:41:33,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:41:33,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:33,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:33,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:34,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:35,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:35,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 12:41:35,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:41:35,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2308 [2020-10-13 12:41:35,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:35,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:35,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-13 12:41:35,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:35,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-13 12:41:36,345 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:41:36,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:41:36,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:36,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:36,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:36,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:36,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:36,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 12:41:36,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:36,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:36,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:36,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:36,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:41:36,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:41:36,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:36,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:36,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:36,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:36,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:36,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:36,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:36,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:36,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:36,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:36,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:36,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:41:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:36,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:36,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:36,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:36,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:36,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:36,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:36,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:36,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:36,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:36,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:36,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:41:36,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:36,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:36,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:36,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:36,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:36,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:41:36,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:36,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:36,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:36,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:36,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:36,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:41:36,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:36,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:36,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:36,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:36,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:36,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:36,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:36,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:36,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:36,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:36,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:36,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 12:41:36,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:36,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:36,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:36,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:36,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:36,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:36,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:36,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:36,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:36,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:36,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:36,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 12:41:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:36,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:36,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:36,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:36,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:36,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:41:36,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:36,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:36,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:36,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:36,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:36,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 12:41:36,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:36,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:36,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:36,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:36,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:36,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:41:36,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:36,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:36,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:36,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:36,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:36,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:41:36,498 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1174092211] [2020-10-13 12:41:36,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:41:36,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 12:41:36,501 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048979361] [2020-10-13 12:41:36,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 12:41:36,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:41:36,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 12:41:36,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 12:41:36,527 INFO L87 Difference]: Start difference. First operand 154 states. Second operand 3 states. [2020-10-13 12:41:37,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:41:37,628 INFO L93 Difference]: Finished difference Result 240 states and 317 transitions. [2020-10-13 12:41:37,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 12:41:37,630 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-10-13 12:41:37,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:41:37,645 INFO L225 Difference]: With dead ends: 240 [2020-10-13 12:41:37,645 INFO L226 Difference]: Without dead ends: 131 [2020-10-13 12:41:37,650 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 [2020-10-13 12:41:37,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-10-13 12:41:37,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 100. [2020-10-13 12:41:37,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-10-13 12:41:37,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 115 transitions. [2020-10-13 12:41:37,766 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 115 transitions. Word has length 52 [2020-10-13 12:41:37,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:41:37,767 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 115 transitions. [2020-10-13 12:41:37,767 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 12:41:37,767 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 115 transitions. [2020-10-13 12:41:37,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-13 12:41:37,772 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:41:37,773 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] [2020-10-13 12:41:37,773 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 12:41:37,773 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:41:37,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:41:37,774 INFO L82 PathProgramCache]: Analyzing trace with hash 1789709038, now seen corresponding path program 1 times [2020-10-13 12:41:37,774 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:41:37,775 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1192528700] [2020-10-13 12:41:37,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:41:37,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:37,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:37,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:38,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:40,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:40,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-13 12:41:40,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:41:40,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2546 [2020-10-13 12:41:40,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:40,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:40,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-13 12:41:40,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 12:41:40,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:40,631 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:41:40,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:41:40,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:40,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:40,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:40,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:40,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:40,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 12:41:40,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:40,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:40,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:40,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:40,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:40,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:41:40,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:40,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:40,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:40,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:40,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:40,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:40,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:40,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:40,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:40,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:40,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:40,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:41:40,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:40,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:40,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:40,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:40,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:40,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:41:40,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:40,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:40,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:40,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:40,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:40,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:41:40,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:40,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:40,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:40,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:40,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:40,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:40,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:40,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:40,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:40,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:40,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:40,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:41:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:40,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:40,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:40,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:40,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:40,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:40,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:40,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:40,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:40,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:40,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:40,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 12:41:40,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:40,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:40,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:40,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:40,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:40,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:40,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:40,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:40,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:40,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:40,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:40,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 12:41:40,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:40,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:40,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:40,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:40,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:40,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:40,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:40,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:40,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:40,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:40,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:41:40,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 12:41:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:40,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:40,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:40,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:40,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:40,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:40,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:40,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:40,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:40,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:40,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:40,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:41:40,727 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1192528700] [2020-10-13 12:41:40,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:41:40,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 12:41:40,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398794677] [2020-10-13 12:41:40,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 12:41:40,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:41:40,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 12:41:40,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 12:41:40,730 INFO L87 Difference]: Start difference. First operand 100 states and 115 transitions. Second operand 4 states. [2020-10-13 12:41:41,238 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:41:41,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:41:41,781 INFO L93 Difference]: Finished difference Result 160 states and 194 transitions. [2020-10-13 12:41:41,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 12:41:41,782 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-13 12:41:41,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:41:41,785 INFO L225 Difference]: With dead ends: 160 [2020-10-13 12:41:41,785 INFO L226 Difference]: Without dead ends: 115 [2020-10-13 12:41:41,786 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 12:41:41,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-10-13 12:41:41,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 91. [2020-10-13 12:41:41,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-13 12:41:41,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 103 transitions. [2020-10-13 12:41:41,820 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 103 transitions. Word has length 53 [2020-10-13 12:41:41,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:41:41,820 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 103 transitions. [2020-10-13 12:41:41,821 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 12:41:41,821 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 103 transitions. [2020-10-13 12:41:41,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-13 12:41:41,823 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:41:41,823 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] [2020-10-13 12:41:41,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 12:41:41,823 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:41:41,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:41:41,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1277285199, now seen corresponding path program 1 times [2020-10-13 12:41:41,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:41:41,824 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1009704943] [2020-10-13 12:41:41,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:41:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:41,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:42,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:42,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:42,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-13 12:41:42,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:41:42,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 966 [2020-10-13 12:41:42,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:42,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 12:41:42,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:42,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-13 12:41:42,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:43,066 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:41:43,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:41:43,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:43,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:43,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:43,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:43,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:43,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-13 12:41:43,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:43,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:43,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:43,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 12:41:43,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:41:43,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:41:43,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:43,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:43,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:43,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:43,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:43,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:41:43,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:43,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:43,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:43,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:41:43,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:41:43,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:41:43,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:43,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:43,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:43,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:43,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:43,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:41:43,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:43,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:43,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:43,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:41:43,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:41:43,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:41:43,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:43,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:43,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:43,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:43,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:43,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:41:43,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:43,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:43,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:43,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:41:43,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:43,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:41:43,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:43,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:43,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:43,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:43,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:43,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:43,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:43,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:43,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:43,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:41:43,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:43,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 12:41:43,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:43,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:43,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:43,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:43,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:43,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:43,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:43,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:43,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:43,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:43,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:43,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 12:41:43,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:43,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:43,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:43,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:43,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:43,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:41:43,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:43,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:43,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:43,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:43,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:43,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 12:41:43,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:43,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:43,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:43,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:43,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:43,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:43,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:43,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:43,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:43,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:43,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:43,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:41:43,245 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1009704943] [2020-10-13 12:41:43,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:41:43,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 12:41:43,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548553308] [2020-10-13 12:41:43,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 12:41:43,247 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:41:43,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 12:41:43,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 12:41:43,249 INFO L87 Difference]: Start difference. First operand 91 states and 103 transitions. Second operand 4 states. [2020-10-13 12:41:43,549 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:41:44,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:41:44,544 INFO L93 Difference]: Finished difference Result 257 states and 313 transitions. [2020-10-13 12:41:44,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 12:41:44,545 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2020-10-13 12:41:44,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:41:44,549 INFO L225 Difference]: With dead ends: 257 [2020-10-13 12:41:44,549 INFO L226 Difference]: Without dead ends: 190 [2020-10-13 12:41:44,550 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 12:41:44,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-10-13 12:41:44,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 142. [2020-10-13 12:41:44,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-10-13 12:41:44,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 165 transitions. [2020-10-13 12:41:44,599 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 165 transitions. Word has length 58 [2020-10-13 12:41:44,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:41:44,600 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 165 transitions. [2020-10-13 12:41:44,600 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 12:41:44,600 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 165 transitions. [2020-10-13 12:41:44,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-13 12:41:44,602 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:41:44,602 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] [2020-10-13 12:41:44,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 12:41:44,603 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:41:44,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:41:44,603 INFO L82 PathProgramCache]: Analyzing trace with hash 2002784121, now seen corresponding path program 1 times [2020-10-13 12:41:44,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:41:44,604 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [462426825] [2020-10-13 12:41:44,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:41:44,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:44,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:45,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:45,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-13 12:41:45,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:45,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 650 [2020-10-13 12:41:45,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:45,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 12:41:45,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:45,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 12:41:45,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:45,569 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:41:45,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:41:45,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:45,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:45,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:45,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:45,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:45,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-13 12:41:45,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:45,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:45,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:45,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 12:41:45,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:45,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:41:45,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:45,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:45,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:45,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:45,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:45,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:45,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:45,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:45,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:45,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:41:45,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:45,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:41:45,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:45,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:45,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:45,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:45,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:45,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:45,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:45,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:45,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:45,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:41:45,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:45,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:41:45,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:45,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:45,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:45,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:45,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:45,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:41:45,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:45,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:45,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:45,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:41:45,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:45,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:41:45,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:45,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:45,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:45,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:45,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:45,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:45,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:45,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:45,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:45,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:41:45,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:45,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 12:41:45,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:45,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:45,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:45,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:45,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:45,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:45,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:45,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:45,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:45,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:41:45,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:45,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 12:41:45,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:45,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:45,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:45,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:45,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:45,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:41:45,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:45,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:45,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:45,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:41:45,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:41:45,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 12:41:45,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:45,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:45,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:45,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:45,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:45,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:41:45,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:45,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:41:45,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:45,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:41:45,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:45,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-13 12:41:45,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:45,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:45,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:45,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:45,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:45,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:45,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:45,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:45,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:45,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:45,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:45,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:41:45,732 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [462426825] [2020-10-13 12:41:45,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:41:45,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 12:41:45,733 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844185480] [2020-10-13 12:41:45,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 12:41:45,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:41:45,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 12:41:45,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-13 12:41:45,734 INFO L87 Difference]: Start difference. First operand 142 states and 165 transitions. Second operand 7 states. [2020-10-13 12:41:46,127 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:41:47,165 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:41:47,453 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:41:47,700 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 12:41:47,968 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:41:48,292 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:41:48,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:41:48,484 INFO L93 Difference]: Finished difference Result 397 states and 498 transitions. [2020-10-13 12:41:48,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 12:41:48,485 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2020-10-13 12:41:48,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:41:48,489 INFO L225 Difference]: With dead ends: 397 [2020-10-13 12:41:48,490 INFO L226 Difference]: Without dead ends: 279 [2020-10-13 12:41:48,491 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-13 12:41:48,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-10-13 12:41:48,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 255. [2020-10-13 12:41:48,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-10-13 12:41:48,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 305 transitions. [2020-10-13 12:41:48,566 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 305 transitions. Word has length 61 [2020-10-13 12:41:48,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:41:48,567 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 305 transitions. [2020-10-13 12:41:48,567 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 12:41:48,567 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 305 transitions. [2020-10-13 12:41:48,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-13 12:41:48,573 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:41:48,573 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:41:48,573 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 12:41:48,573 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:41:48,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:41:48,576 INFO L82 PathProgramCache]: Analyzing trace with hash -423236225, now seen corresponding path program 1 times [2020-10-13 12:41:48,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:41:48,577 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [645494655] [2020-10-13 12:41:48,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:41:48,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 12:41:48,681 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 12:41:48,681 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 12:41:48,685 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 12:41:48,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:41:48 BoogieIcfgContainer [2020-10-13 12:41:48,707 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 12:41:48,710 INFO L168 Benchmark]: Toolchain (without parser) took 17393.32 ms. Allocated memory was 141.6 MB in the beginning and 574.6 MB in the end (delta: 433.1 MB). Free memory was 103.3 MB in the beginning and 532.5 MB in the end (delta: -429.2 MB). Peak memory consumption was 387.7 MB. Max. memory is 7.1 GB. [2020-10-13 12:41:48,710 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.7 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-10-13 12:41:48,711 INFO L168 Benchmark]: CACSL2BoogieTranslator took 663.99 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 102.9 MB in the beginning and 173.7 MB in the end (delta: -70.9 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2020-10-13 12:41:48,712 INFO L168 Benchmark]: Boogie Preprocessor took 90.56 ms. Allocated memory is still 204.5 MB. Free memory was 173.7 MB in the beginning and 169.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-10-13 12:41:48,713 INFO L168 Benchmark]: RCFGBuilder took 1058.37 ms. Allocated memory was 204.5 MB in the beginning and 234.9 MB in the end (delta: 30.4 MB). Free memory was 169.0 MB in the beginning and 197.5 MB in the end (delta: -28.5 MB). Peak memory consumption was 80.6 MB. Max. memory is 7.1 GB. [2020-10-13 12:41:48,714 INFO L168 Benchmark]: TraceAbstraction took 15575.75 ms. Allocated memory was 234.9 MB in the beginning and 574.6 MB in the end (delta: 339.7 MB). Free memory was 197.5 MB in the beginning and 532.5 MB in the end (delta: -335.0 MB). Peak memory consumption was 388.6 MB. Max. memory is 7.1 GB. [2020-10-13 12:41:48,718 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 141.6 MB. Free memory was 123.1 MB in the beginning and 122.7 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 663.99 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 102.9 MB in the beginning and 173.7 MB in the end (delta: -70.9 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 90.56 ms. Allocated memory is still 204.5 MB. Free memory was 173.7 MB in the beginning and 169.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1058.37 ms. Allocated memory was 204.5 MB in the beginning and 234.9 MB in the end (delta: 30.4 MB). Free memory was 169.0 MB in the beginning and 197.5 MB in the end (delta: -28.5 MB). Peak memory consumption was 80.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15575.75 ms. Allocated memory was 234.9 MB in the beginning and 574.6 MB in the end (delta: 339.7 MB). Free memory was 197.5 MB in the beginning and 532.5 MB in the end (delta: -335.0 MB). Peak memory consumption was 388.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 890]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L158] int pumpRunning = 0; [L159] int systemActive = 1; [L306] int waterLevel = 1; [L307] int methaneLevelCritical = 0; [L593] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L790] int cleanupTimeShifts = 4; [L863] int retValue_acc ; [L864] int tmp ; [L868] FCALL select_helpers() [L869] FCALL select_features() [L870] CALL, EXPR valid_product() [L415] int retValue_acc ; [L418] retValue_acc = 1 [L419] return (retValue_acc); [L870] RET, EXPR valid_product() [L870] tmp = valid_product() [L872] COND TRUE \read(tmp) [L874] FCALL setup() [L875] CALL runTest() [L857] CALL test() [L85] int splverifierCounter ; [L86] int tmp ; [L87] int tmp___0 ; [L88] int tmp___1 ; [L89] int tmp___2 ; [L92] splverifierCounter = 0 [L94] COND TRUE 1 [L96] COND TRUE splverifierCounter < 4 [L102] tmp = __VERIFIER_nondet_int() [L104] COND TRUE \read(tmp) [L106] CALL waterRise() [L324] COND TRUE waterLevel < 2 [L325] waterLevel = waterLevel + 1 [L106] RET waterRise() [L112] tmp___0 = __VERIFIER_nondet_int() [L114] COND FALSE !(\read(tmp___0)) [L122] tmp___2 = __VERIFIER_nondet_int() [L124] COND FALSE !(\read(tmp___2)) [L130] tmp___1 = __VERIFIER_nondet_int() [L132] COND FALSE !(\read(tmp___1)) [L141] CALL timeShift() [L165] COND FALSE !(\read(pumpRunning)) [L172] COND TRUE \read(systemActive) [L174] FCALL processEnvironment() [L180] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L345] int retValue_acc ; [L348] retValue_acc = methaneLevelCritical [L349] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L377] int retValue_acc ; [L380] retValue_acc = waterLevel [L381] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L238] int retValue_acc ; [L241] retValue_acc = pumpRunning [L242] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L890] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 214 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 6.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 359 SDtfs, 406 SDslu, 215 SDs, 0 SdLazy, 806 SolverSat, 232 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=255occurred 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, 127 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 8.3s InterpolantComputationTime, 289 NumberOfCodeBlocks, 289 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 220 ConstructedInterpolants, 0 QuantifiedInterpolants, 59852 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...