/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product05.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:48:27,115 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:48:27,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:48:27,143 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:48:27,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:48:27,145 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:48:27,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:48:27,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:48:27,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:48:27,150 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:48:27,151 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:48:27,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:48:27,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:48:27,153 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:48:27,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:48:27,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:48:27,156 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:48:27,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:48:27,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:48:27,161 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:48:27,162 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:48:27,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:48:27,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:48:27,165 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:48:27,167 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:48:27,168 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:48:27,168 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:48:27,169 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:48:27,169 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:48:27,170 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:48:27,171 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:48:27,171 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:48:27,172 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:48:27,173 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:48:27,174 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:48:27,174 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:48:27,175 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:48:27,175 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:48:27,175 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:48:27,176 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:48:27,177 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:48:27,178 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 09:48:27,202 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:48:27,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:48:27,204 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:48:27,204 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:48:27,204 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:48:27,205 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:48:27,205 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:48:27,205 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:48:27,205 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:48:27,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:48:27,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:48:27,206 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:48:27,206 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:48:27,206 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:48:27,206 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:48:27,206 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:48:27,207 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:48:27,207 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:48:27,207 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:48:27,207 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:48:27,207 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:48:27,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:48:27,208 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:48:27,208 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:48:27,208 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:48:27,208 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:48:27,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:48:27,209 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:48:27,209 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:48:27,209 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-09-25 09:48:27,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:48:27,688 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:48:27,692 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:48:27,694 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:48:27,695 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:48:27,696 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product05.cil.c [2020-09-25 09:48:27,782 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f08f8c6c1/1905c4b61136490eb106178afc0fa7e6/FLAG00eeade1f [2020-09-25 09:48:28,366 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:48:28,367 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product05.cil.c [2020-09-25 09:48:28,381 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f08f8c6c1/1905c4b61136490eb106178afc0fa7e6/FLAG00eeade1f [2020-09-25 09:48:28,663 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f08f8c6c1/1905c4b61136490eb106178afc0fa7e6 [2020-09-25 09:48:28,677 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:48:28,684 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:48:28,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:48:28,685 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:48:28,689 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:48:28,690 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:48:28" (1/1) ... [2020-09-25 09:48:28,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1516d3a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:28, skipping insertion in model container [2020-09-25 09:48:28,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:48:28" (1/1) ... [2020-09-25 09:48:28,703 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:48:28,763 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:48:29,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:48:29,273 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:48:29,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:48:29,408 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:48:29,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:29 WrapperNode [2020-09-25 09:48:29,408 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:48:29,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:48:29,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:48:29,410 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:48:29,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:29" (1/1) ... [2020-09-25 09:48:29,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:29" (1/1) ... [2020-09-25 09:48:29,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:29" (1/1) ... [2020-09-25 09:48:29,444 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:29" (1/1) ... [2020-09-25 09:48:29,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:29" (1/1) ... [2020-09-25 09:48:29,486 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:29" (1/1) ... [2020-09-25 09:48:29,491 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:29" (1/1) ... [2020-09-25 09:48:29,499 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:48:29,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:48:29,503 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:48:29,503 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:48:29,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:29" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:48:29,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:48:29,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:48:29,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 09:48:29,586 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 09:48:29,587 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 09:48:29,587 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 09:48:29,587 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 09:48:29,587 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 09:48:29,587 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 09:48:29,588 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 09:48:29,588 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 09:48:29,588 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 09:48:29,588 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 09:48:29,588 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 09:48:29,588 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 09:48:29,589 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 09:48:29,589 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 09:48:29,589 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 09:48:29,589 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 09:48:29,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 09:48:29,590 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 09:48:29,590 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:48:29,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 09:48:29,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 09:48:29,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 09:48:29,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 09:48:29,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 09:48:29,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 09:48:29,591 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 09:48:29,591 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 09:48:29,592 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 09:48:29,592 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 09:48:29,592 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 09:48:29,592 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 09:48:29,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 09:48:29,592 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:48:29,593 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:48:29,593 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 09:48:29,593 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 09:48:29,593 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 09:48:29,593 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 09:48:29,593 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 09:48:29,593 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 09:48:29,594 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 09:48:29,594 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 09:48:29,594 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 09:48:29,594 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 09:48:29,594 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 09:48:29,594 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 09:48:29,595 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 09:48:29,595 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 09:48:29,595 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 09:48:29,595 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 09:48:29,595 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 09:48:29,595 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 09:48:29,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 09:48:29,596 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 09:48:29,596 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 09:48:29,596 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 09:48:29,596 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 09:48:29,596 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 09:48:29,597 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 09:48:29,597 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 09:48:29,597 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:48:29,597 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 09:48:29,597 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 09:48:29,597 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 09:48:29,598 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 09:48:29,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 09:48:29,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 09:48:29,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 09:48:29,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 09:48:29,598 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 09:48:29,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 09:48:29,599 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 09:48:29,599 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 09:48:29,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 09:48:29,599 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 09:48:29,599 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 09:48:29,600 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 09:48:29,600 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 09:48:29,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:48:29,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 09:48:29,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:48:30,807 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:48:30,809 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 09:48:30,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:48:30 BoogieIcfgContainer [2020-09-25 09:48:30,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:48:30,820 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:48:30,820 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:48:30,824 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:48:30,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:48:28" (1/3) ... [2020-09-25 09:48:30,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2628787b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:48:30, skipping insertion in model container [2020-09-25 09:48:30,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:29" (2/3) ... [2020-09-25 09:48:30,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2628787b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:48:30, skipping insertion in model container [2020-09-25 09:48:30,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:48:30" (3/3) ... [2020-09-25 09:48:30,828 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product05.cil.c [2020-09-25 09:48:30,839 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:48:30,851 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:48:30,870 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:48:30,902 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:48:30,902 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:48:30,903 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:48:30,903 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:48:30,903 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:48:30,903 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:48:30,903 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:48:30,903 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:48:30,930 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states. [2020-09-25 09:48:30,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 09:48:30,947 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:48:30,949 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:48:30,949 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:48:30,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:48:30,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1745842468, now seen corresponding path program 1 times [2020-09-25 09:48:30,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:48:30,966 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [326824475] [2020-09-25 09:48:30,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:48:31,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:31,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:31,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:32,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:35,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:35,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 09:48:35,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:48:35,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4093 [2020-09-25 09:48:35,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:35,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:35,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 09:48:35,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 09:48:35,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-25 09:48:35,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 09:48:35,849 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:48:35,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:48:35,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:35,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:36,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:36,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:48:36,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:36,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-09-25 09:48:36,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:36,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:36,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:36,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:36,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 09:48:36,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:36,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:48:36,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:36,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:36,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:36,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:36,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:36,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:48:36,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:36,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:36,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:36,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:36,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:48:36,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:36,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:48:36,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:36,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:36,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:36,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:36,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:36,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:48:36,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:36,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:36,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:36,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:36,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:48:36,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:36,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:48:36,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:36,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:36,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:36,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:36,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:36,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 09:48:36,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:36,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:36,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:36,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:36,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:48:36,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:36,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:48:36,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:36,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:36,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:36,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:36,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:36,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:48:36,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:36,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:36,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:36,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:36,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:48:36,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:36,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 09:48:36,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:36,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:36,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:36,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:36,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:36,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:48:36,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:36,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:36,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:36,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:36,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:48:36,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:36,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 09:48:36,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:36,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:36,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:36,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:36,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:36,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 09:48:36,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:36,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:36,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:48:36,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:36,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:48:36,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:36,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 09:48:36,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:36,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:36,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:36,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:36,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:36,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:48:36,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:36,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:36,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:48:36,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:48:36,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:48:36,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:36,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:48:36,401 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [326824475] [2020-09-25 09:48:36,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:48:36,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 09:48:36,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537944488] [2020-09-25 09:48:36,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:48:36,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:48:36,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:48:36,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:48:36,440 INFO L87 Difference]: Start difference. First operand 275 states. Second operand 8 states. [2020-09-25 09:48:37,054 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:48:38,444 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:48:38,823 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:48:39,222 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:48:39,566 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:48:39,865 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:48:40,205 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:48:40,506 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:48:41,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:48:41,518 INFO L93 Difference]: Finished difference Result 537 states and 668 transitions. [2020-09-25 09:48:41,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 09:48:41,521 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-25 09:48:41,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:48:41,556 INFO L225 Difference]: With dead ends: 537 [2020-09-25 09:48:41,557 INFO L226 Difference]: Without dead ends: 373 [2020-09-25 09:48:41,568 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 09:48:41,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2020-09-25 09:48:41,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 330. [2020-09-25 09:48:41,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2020-09-25 09:48:41,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 374 transitions. [2020-09-25 09:48:41,716 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 374 transitions. Word has length 153 [2020-09-25 09:48:41,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:48:41,717 INFO L479 AbstractCegarLoop]: Abstraction has 330 states and 374 transitions. [2020-09-25 09:48:41,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:48:41,717 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 374 transitions. [2020-09-25 09:48:41,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-09-25 09:48:41,733 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:48:41,733 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:48:41,734 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:48:41,734 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:48:41,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:48:41,735 INFO L82 PathProgramCache]: Analyzing trace with hash -438576822, now seen corresponding path program 1 times [2020-09-25 09:48:41,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:48:41,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1867388335] [2020-09-25 09:48:41,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:48:41,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:41,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:41,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:42,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:46,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:46,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:46,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:46,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 09:48:46,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 09:48:46,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5094 [2020-09-25 09:48:46,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:46,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:46,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 09:48:46,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 09:48:46,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 09:48:46,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:48:47,220 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:48:47,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:48:47,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:47,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:47,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:47,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:48:47,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:47,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-09-25 09:48:47,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:47,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:47,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:47,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:47,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 09:48:47,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:47,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:48:47,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:47,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:47,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:47,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:47,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:47,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:48:47,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:47,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:47,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:47,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:47,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:48:47,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:47,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:48:47,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:47,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:47,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:47,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:47,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:47,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:48:47,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:47,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:47,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:47,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:47,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:48:47,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:47,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:48:47,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:47,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:47,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:47,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:47,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:47,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:48:47,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:47,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:47,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:47,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:47,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:48:47,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:47,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:48:47,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:47,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:47,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:47,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:47,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:47,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:48:47,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:47,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:47,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:47,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:47,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:48:47,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:47,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 09:48:47,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:47,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:47,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:47,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:48:47,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:47,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 09:48:47,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:47,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:47,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:48:47,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 09:48:47,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:48:47,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:47,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 09:48:47,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:47,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:47,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:47,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:47,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:47,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:48:47,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:47,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:47,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:47,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:47,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:48:47,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:47,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 09:48:47,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:47,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:47,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:47,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:47,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:47,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:48:47,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:47,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:47,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:48:47,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:47,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:48:47,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:47,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 09:48:47,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:47,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:47,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:47,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:47,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:47,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:48:47,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:47,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:47,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:48:47,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:48:47,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:48:47,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:47,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:48:47,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1867388335] [2020-09-25 09:48:47,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:48:47,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 09:48:47,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097068549] [2020-09-25 09:48:47,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 09:48:47,741 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:48:47,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 09:48:47,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-09-25 09:48:47,742 INFO L87 Difference]: Start difference. First operand 330 states and 374 transitions. Second operand 11 states. [2020-09-25 09:48:48,301 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:48:49,229 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:48:50,243 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:48:50,620 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:48:51,202 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:48:51,552 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:48:51,970 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:48:52,358 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:48:52,671 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:48:53,111 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:48:53,403 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:48:55,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:48:55,332 INFO L93 Difference]: Finished difference Result 769 states and 991 transitions. [2020-09-25 09:48:55,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 09:48:55,334 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 159 [2020-09-25 09:48:55,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:48:55,341 INFO L225 Difference]: With dead ends: 769 [2020-09-25 09:48:55,341 INFO L226 Difference]: Without dead ends: 604 [2020-09-25 09:48:55,344 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=150, Invalid=450, Unknown=0, NotChecked=0, Total=600 [2020-09-25 09:48:55,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2020-09-25 09:48:55,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 512. [2020-09-25 09:48:55,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 512 states. [2020-09-25 09:48:55,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 582 transitions. [2020-09-25 09:48:55,442 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 582 transitions. Word has length 159 [2020-09-25 09:48:55,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:48:55,443 INFO L479 AbstractCegarLoop]: Abstraction has 512 states and 582 transitions. [2020-09-25 09:48:55,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 09:48:55,443 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 582 transitions. [2020-09-25 09:48:55,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-09-25 09:48:55,447 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:48:55,447 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:48:55,447 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:48:55,448 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:48:55,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:48:55,448 INFO L82 PathProgramCache]: Analyzing trace with hash 910621888, now seen corresponding path program 1 times [2020-09-25 09:48:55,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:48:55,449 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2040667883] [2020-09-25 09:48:55,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:48:55,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:55,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:55,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:55,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 09:48:55,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:55,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 350 [2020-09-25 09:48:55,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:55,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:55,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:55,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 09:48:55,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 09:48:55,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:56,224 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:48:56,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:48:56,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:56,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:56,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:56,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:48:56,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:56,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 270 [2020-09-25 09:48:56,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:56,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:56,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:56,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:56,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 09:48:56,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:56,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:48:56,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:56,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:56,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:56,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:56,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:56,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:48:56,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:56,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:56,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:56,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:56,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:48:56,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:56,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:48:56,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:56,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:56,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:56,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:56,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:56,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:48:56,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:56,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:56,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:56,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:56,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:48:56,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:56,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:48:56,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:56,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:56,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:56,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:56,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:56,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:48:56,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:56,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:56,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:56,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:56,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:48:56,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:56,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:48:56,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:56,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:56,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:56,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:56,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:56,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:48:56,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:56,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:56,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:56,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:56,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:48:56,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:56,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 09:48:56,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:56,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:56,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:56,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:48:56,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:56,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:48:56,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:56,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:56,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:56,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:56,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:48:56,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:48:56,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 09:48:56,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:56,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:56,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:56,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:56,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:56,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:48:56,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:56,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:56,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:48:56,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:48:56,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:48:56,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:48:56,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-09-25 09:48:56,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:56,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:56,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:56,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:56,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:56,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:48:56,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:56,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:56,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:48:56,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:48:56,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:48:56,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:56,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 09:48:56,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:56,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:56,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:56,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:56,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:56,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:48:56,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:56,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:56,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:48:56,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:48:56,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:48:56,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:48:56,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:48:56,726 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2040667883] [2020-09-25 09:48:56,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:48:56,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 09:48:56,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233883133] [2020-09-25 09:48:56,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 09:48:56,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:48:56,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 09:48:56,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 09:48:56,728 INFO L87 Difference]: Start difference. First operand 512 states and 582 transitions. Second operand 5 states. [2020-09-25 09:48:57,191 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:48:58,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:48:58,131 INFO L93 Difference]: Finished difference Result 979 states and 1171 transitions. [2020-09-25 09:48:58,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 09:48:58,132 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2020-09-25 09:48:58,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:48:58,137 INFO L225 Difference]: With dead ends: 979 [2020-09-25 09:48:58,137 INFO L226 Difference]: Without dead ends: 577 [2020-09-25 09:48:58,139 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:48:58,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2020-09-25 09:48:58,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 512. [2020-09-25 09:48:58,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 512 states. [2020-09-25 09:48:58,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 577 transitions. [2020-09-25 09:48:58,217 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 577 transitions. Word has length 168 [2020-09-25 09:48:58,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:48:58,217 INFO L479 AbstractCegarLoop]: Abstraction has 512 states and 577 transitions. [2020-09-25 09:48:58,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 09:48:58,218 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 577 transitions. [2020-09-25 09:48:58,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-25 09:48:58,221 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:48:58,221 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:48:58,222 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:48:58,222 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:48:58,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:48:58,222 INFO L82 PathProgramCache]: Analyzing trace with hash -481228589, now seen corresponding path program 1 times [2020-09-25 09:48:58,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:48:58,223 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1435771857] [2020-09-25 09:48:58,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:48:58,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 09:48:58,286 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 09:48:58,287 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 09:48:58,292 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 09:48:58,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 09:48:58 BoogieIcfgContainer [2020-09-25 09:48:58,318 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 09:48:58,320 INFO L168 Benchmark]: Toolchain (without parser) took 29641.10 ms. Allocated memory was 140.5 MB in the beginning and 571.5 MB in the end (delta: 431.0 MB). Free memory was 103.1 MB in the beginning and 140.7 MB in the end (delta: -37.6 MB). Peak memory consumption was 393.4 MB. Max. memory is 7.1 GB. [2020-09-25 09:48:58,321 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 09:48:58,322 INFO L168 Benchmark]: CACSL2BoogieTranslator took 724.50 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 102.4 MB in the beginning and 174.0 MB in the end (delta: -71.5 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. [2020-09-25 09:48:58,323 INFO L168 Benchmark]: Boogie Preprocessor took 89.91 ms. Allocated memory is still 203.4 MB. Free memory was 174.0 MB in the beginning and 169.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-25 09:48:58,324 INFO L168 Benchmark]: RCFGBuilder took 1316.44 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 169.9 MB in the beginning and 179.2 MB in the end (delta: -9.3 MB). Peak memory consumption was 83.8 MB. Max. memory is 7.1 GB. [2020-09-25 09:48:58,325 INFO L168 Benchmark]: TraceAbstraction took 27497.93 ms. Allocated memory was 235.4 MB in the beginning and 571.5 MB in the end (delta: 336.1 MB). Free memory was 179.2 MB in the beginning and 140.7 MB in the end (delta: 38.5 MB). Peak memory consumption was 374.5 MB. Max. memory is 7.1 GB. [2020-09-25 09:48:58,329 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 724.50 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 102.4 MB in the beginning and 174.0 MB in the end (delta: -71.5 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.91 ms. Allocated memory is still 203.4 MB. Free memory was 174.0 MB in the beginning and 169.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1316.44 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 169.9 MB in the beginning and 179.2 MB in the end (delta: -9.3 MB). Peak memory consumption was 83.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 27497.93 ms. Allocated memory was 235.4 MB in the beginning and 571.5 MB in the end (delta: 336.1 MB). Free memory was 179.2 MB in the beginning and 140.7 MB in the end (delta: 38.5 MB). Peak memory consumption was 374.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 82]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L95] int pumpRunning = 0; [L96] int systemActive = 1; [L297] int cleanupTimeShifts = 4; [L562] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L760] int waterLevel = 1; [L761] int methaneLevelCritical = 0; [L370] int retValue_acc ; [L371] int tmp ; [L375] FCALL select_helpers() [L376] FCALL select_features() [L377] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L377] RET, EXPR valid_product() [L377] tmp = valid_product() [L379] COND TRUE \read(tmp) [L381] FCALL setup() [L382] CALL runTest() [L364] CALL test() [L233] int splverifierCounter ; [L234] int tmp ; [L235] int tmp___0 ; [L236] int tmp___1 ; [L237] int tmp___2 ; [L240] splverifierCounter = 0 [L242] COND TRUE 1 [L244] COND TRUE splverifierCounter < 4 [L250] tmp = __VERIFIER_nondet_int() [L252] COND TRUE \read(tmp) [L254] CALL waterRise() [L778] COND TRUE waterLevel < 2 [L779] waterLevel = waterLevel + 1 [L254] RET waterRise() [L260] tmp___0 = __VERIFIER_nondet_int() [L262] COND FALSE !(\read(tmp___0)) [L270] tmp___2 = __VERIFIER_nondet_int() [L272] COND TRUE \read(tmp___2) [L285] CALL timeShift() [L103] COND FALSE !(\read(pumpRunning)) [L110] COND TRUE \read(systemActive) [L112] CALL processEnvironment() [L132] int tmp ; [L135] COND FALSE !(\read(pumpRunning)) [L150] FCALL processEnvironment__wrappee__base() [L112] RET processEnvironment() [L118] CALL __utac_acc__Specification3_spec__1() [L841] int tmp ; [L842] int tmp___0 ; [L843] int tmp___1 ; [L847] CALL, EXPR isMethaneLevelCritical() [L799] int retValue_acc ; [L802] retValue_acc = methaneLevelCritical [L803] return (retValue_acc); [L847] RET, EXPR isMethaneLevelCritical() [L847] tmp = isMethaneLevelCritical() [L849] COND FALSE !(\read(tmp)) [L853] CALL, EXPR getWaterLevel() [L831] int retValue_acc ; [L834] retValue_acc = waterLevel [L835] return (retValue_acc); [L853] RET, EXPR getWaterLevel() [L853] tmp___0 = getWaterLevel() [L855] COND TRUE tmp___0 == 2 [L857] CALL, EXPR isPumpRunning() [L184] int retValue_acc ; [L187] retValue_acc = pumpRunning [L188] return (retValue_acc); [L857] RET, EXPR isPumpRunning() [L857] tmp___1 = isPumpRunning() [L859] COND FALSE !(\read(tmp___1)) [L863] CALL __automaton_fail() [L82] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 35 procedures, 590 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 27.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 14.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 762 SDtfs, 1277 SDslu, 1542 SDs, 0 SdLazy, 3514 SolverSat, 516 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 6.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=512occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 200 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 12.1s InterpolantComputationTime, 656 NumberOfCodeBlocks, 656 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 477 ConstructedInterpolants, 0 QuantifiedInterpolants, 208992 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...