/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_product64.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:50:20,065 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:50:20,070 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:50:20,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:50:20,121 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:50:20,133 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:50:20,136 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:50:20,140 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:50:20,144 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:50:20,148 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:50:20,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:50:20,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:50:20,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:50:20,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:50:20,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:50:20,161 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:50:20,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:50:20,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:50:20,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:50:20,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:50:20,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:50:20,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:50:20,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:50:20,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:50:20,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:50:20,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:50:20,186 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:50:20,189 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:50:20,189 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:50:20,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:50:20,192 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:50:20,193 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:50:20,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:50:20,194 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:50:20,196 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:50:20,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:50:20,197 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:50:20,197 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:50:20,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:50:20,198 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:50:20,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:50:20,201 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 09:50:20,249 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:50:20,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:50:20,251 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:50:20,251 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:50:20,251 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:50:20,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:50:20,252 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:50:20,252 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:50:20,252 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:50:20,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:50:20,253 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:50:20,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:50:20,253 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:50:20,253 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:50:20,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:50:20,254 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:50:20,254 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:50:20,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:50:20,255 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:50:20,255 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:50:20,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:50:20,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:50:20,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:50:20,256 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:50:20,256 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:50:20,256 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:50:20,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:50:20,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:50:20,257 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:50:20,257 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 09:50:20,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:50:20,719 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:50:20,724 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:50:20,726 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:50:20,726 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:50:20,727 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c [2020-09-25 09:50:20,822 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/56e95340f/27d8e07014fe44c29b7172f1dc6cd25c/FLAGd07fd84d5 [2020-09-25 09:50:21,474 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:50:21,475 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c [2020-09-25 09:50:21,497 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/56e95340f/27d8e07014fe44c29b7172f1dc6cd25c/FLAGd07fd84d5 [2020-09-25 09:50:21,747 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/56e95340f/27d8e07014fe44c29b7172f1dc6cd25c [2020-09-25 09:50:21,761 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:50:21,766 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:50:21,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:50:21,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:50:21,773 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:50:21,774 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:50:21" (1/1) ... [2020-09-25 09:50:21,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@217e3fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:50:21, skipping insertion in model container [2020-09-25 09:50:21,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:50:21" (1/1) ... [2020-09-25 09:50:21,789 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:50:21,866 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:50:22,307 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:50:22,337 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:50:22,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:50:22,542 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:50:22,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:50:22 WrapperNode [2020-09-25 09:50:22,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:50:22,543 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:50:22,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:50:22,544 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:50:22,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:50:22" (1/1) ... [2020-09-25 09:50:22,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:50:22" (1/1) ... [2020-09-25 09:50:22,586 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:50:22" (1/1) ... [2020-09-25 09:50:22,586 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:50:22" (1/1) ... [2020-09-25 09:50:22,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:50:22" (1/1) ... [2020-09-25 09:50:22,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:50:22" (1/1) ... [2020-09-25 09:50:22,648 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:50:22" (1/1) ... [2020-09-25 09:50:22,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:50:22,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:50:22,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:50:22,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:50:22,658 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:50:22" (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 09:50:22,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:50:22,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:50:22,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 09:50:22,750 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 09:50:22,750 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 09:50:22,751 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 09:50:22,751 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 09:50:22,752 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 09:50:22,752 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 09:50:22,753 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 09:50:22,753 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 09:50:22,753 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 09:50:22,753 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 09:50:22,753 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 09:50:22,754 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 09:50:22,754 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 09:50:22,755 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 09:50:22,755 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 09:50:22,755 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 09:50:22,756 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 09:50:22,756 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 09:50:22,756 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 09:50:22,756 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 09:50:22,757 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 09:50:22,757 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 09:50:22,758 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 09:50:22,758 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 09:50:22,758 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 09:50:22,758 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 09:50:22,758 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 09:50:22,758 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 09:50:22,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 09:50:22,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 09:50:22,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 09:50:22,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 09:50:22,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 09:50:22,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 09:50:22,759 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 09:50:22,760 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 09:50:22,760 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 09:50:22,760 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 09:50:22,760 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:50:22,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 09:50:22,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 09:50:22,761 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:50:22,761 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:50:22,761 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 09:50:22,761 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 09:50:22,761 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 09:50:22,762 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 09:50:22,762 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 09:50:22,762 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 09:50:22,762 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 09:50:22,763 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 09:50:22,763 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 09:50:22,763 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 09:50:22,763 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 09:50:22,763 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 09:50:22,763 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 09:50:22,764 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 09:50:22,764 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 09:50:22,764 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 09:50:22,764 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 09:50:22,764 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 09:50:22,765 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 09:50:22,765 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 09:50:22,765 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 09:50:22,765 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 09:50:22,765 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 09:50:22,766 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 09:50:22,766 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 09:50:22,767 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 09:50:22,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 09:50:22,768 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 09:50:22,768 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 09:50:22,768 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 09:50:22,768 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 09:50:22,769 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 09:50:22,769 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 09:50:22,769 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 09:50:22,769 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 09:50:22,769 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 09:50:22,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 09:50:22,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 09:50:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 09:50:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 09:50:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 09:50:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 09:50:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 09:50:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 09:50:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 09:50:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 09:50:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 09:50:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 09:50:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 09:50:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 09:50:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 09:50:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:50:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 09:50:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:50:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 09:50:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:50:24,127 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:50:24,128 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 09:50:24,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:50:24 BoogieIcfgContainer [2020-09-25 09:50:24,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:50:24,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:50:24,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:50:24,147 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:50:24,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:50:21" (1/3) ... [2020-09-25 09:50:24,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d823786 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:50:24, skipping insertion in model container [2020-09-25 09:50:24,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:50:22" (2/3) ... [2020-09-25 09:50:24,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d823786 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:50:24, skipping insertion in model container [2020-09-25 09:50:24,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:50:24" (3/3) ... [2020-09-25 09:50:24,152 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product64.cil.c [2020-09-25 09:50:24,166 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:50:24,182 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:50:24,208 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:50:24,254 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:50:24,255 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:50:24,255 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:50:24,255 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:50:24,255 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:50:24,257 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:50:24,257 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:50:24,258 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:50:24,305 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-09-25 09:50:24,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 09:50:24,325 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:50:24,327 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 09:50:24,327 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:50:24,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:50:24,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1409886201, now seen corresponding path program 1 times [2020-09-25 09:50:24,348 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:50:24,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [793224095] [2020-09-25 09:50:24,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:50:24,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:24,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:25,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:26,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:29,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:29,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 09:50:29,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:50:29,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-09-25 09:50:29,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:29,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:29,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 09:50:29,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 09:50:29,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-09-25 09:50:29,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 09:50:30,253 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:50:30,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:50:30,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:30,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:30,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:30,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:50:30,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:30,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 314 [2020-09-25 09:50:30,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:30,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:30,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:30,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:30,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 09:50:30,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:30,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:50:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:30,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:30,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:30,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:50:30,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:30,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:50:30,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:30,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:30,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:30,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:30,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:50:30,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:30,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:50:30,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:30,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:30,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:30,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:50:30,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:30,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:50:30,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:30,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:30,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:30,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:30,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:50:30,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:30,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:50:30,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:30,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:30,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:30,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:50:30,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:30,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 09:50:30,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:30,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:30,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:30,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:30,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:50:30,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:30,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:50:30,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:30,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:30,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:30,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:50:30,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:30,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:50:30,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:30,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:30,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:30,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:30,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:50:30,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 09:50:30,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 09:50:30,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:30,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:30,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:30,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:50:30,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:30,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:50:30,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:30,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:30,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:30,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:30,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:50:30,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:30,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 09:50:30,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:30,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:30,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:30,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:50:30,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:30,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 09:50:30,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:30,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:30,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:50:30,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:30,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:50:30,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:30,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 09:50:30,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:30,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:30,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:30,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:50:30,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:30,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:50:30,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:30,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:30,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:50:30,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:50:30,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:50:30,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:30,965 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 09:50:30,966 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [793224095] [2020-09-25 09:50:30,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:50:30,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 09:50:30,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424600261] [2020-09-25 09:50:30,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:50:30,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:50:30,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:50:30,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:50:31,002 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 8 states. [2020-09-25 09:50:31,612 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:50:33,535 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:50:33,943 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:50:34,382 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:50:34,874 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:50:35,209 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:50:36,148 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:50:36,500 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:50:38,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:50:38,536 INFO L93 Difference]: Finished difference Result 813 states and 1019 transitions. [2020-09-25 09:50:38,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 09:50:38,539 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-25 09:50:38,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:50:38,562 INFO L225 Difference]: With dead ends: 813 [2020-09-25 09:50:38,562 INFO L226 Difference]: Without dead ends: 545 [2020-09-25 09:50:38,570 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 09:50:38,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2020-09-25 09:50:38,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 486. [2020-09-25 09:50:38,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 486 states. [2020-09-25 09:50:38,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 554 transitions. [2020-09-25 09:50:38,730 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 554 transitions. Word has length 153 [2020-09-25 09:50:38,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:50:38,731 INFO L479 AbstractCegarLoop]: Abstraction has 486 states and 554 transitions. [2020-09-25 09:50:38,732 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:50:38,732 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 554 transitions. [2020-09-25 09:50:38,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 09:50:38,739 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:50:38,739 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] [2020-09-25 09:50:38,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:50:38,740 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:50:38,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:50:38,741 INFO L82 PathProgramCache]: Analyzing trace with hash -165266268, now seen corresponding path program 1 times [2020-09-25 09:50:38,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:50:38,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [15112435] [2020-09-25 09:50:38,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:50:38,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:38,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:39,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:39,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 09:50:39,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:39,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 392 [2020-09-25 09:50:39,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:39,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:39,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:39,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 09:50:39,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:50:39,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:39,524 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:50:39,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:50:39,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:39,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:39,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:39,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:50:39,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:39,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-25 09:50:39,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:39,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:39,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:50:39,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:39,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:50:39,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:39,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:50:39,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:39,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:39,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:39,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:50:39,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:39,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:50:39,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:39,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:39,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:50:39,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:39,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:50:39,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:39,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:50:39,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:39,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:39,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:39,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:50:39,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:39,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:50:39,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:39,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:39,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:50:39,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:39,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:50:39,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:39,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:50:39,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:39,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:39,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:39,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:50:39,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:39,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:50:39,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:39,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:39,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:50:39,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:39,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:50:39,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:39,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:50:39,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:39,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:39,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:39,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:50:39,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:39,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:50:39,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:39,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:39,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:50:39,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:39,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:50:39,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:39,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 09:50:39,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:39,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:39,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:39,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:50:39,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:39,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:50:39,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:39,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:39,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:50:39,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:39,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:50:39,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:39,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 09:50:39,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:39,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:39,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:39,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:50:39,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:39,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:50:39,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:39,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:39,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:39,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:39,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 09:50:39,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:39,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 09:50:39,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:39,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:39,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:39,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:50:39,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:39,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:50:39,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:39,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:39,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:50:39,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:50:39,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:50:39,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:39,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 09:50:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:39,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:39,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:39,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:50:39,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:39,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:50:39,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:39,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:39,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:50:39,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:50:39,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:50:39,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:50:39,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 09:50:39,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:39,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:39,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:39,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:50:39,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:39,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:50:39,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:39,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:39,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:50:39,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:50:39,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:50:39,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:39,818 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 09:50:39,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [15112435] [2020-09-25 09:50:39,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:50:39,819 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 09:50:39,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144778008] [2020-09-25 09:50:39,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 09:50:39,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:50:39,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 09:50:39,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 09:50:39,824 INFO L87 Difference]: Start difference. First operand 486 states and 554 transitions. Second operand 6 states. [2020-09-25 09:50:40,384 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:50:43,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:50:43,981 INFO L93 Difference]: Finished difference Result 1461 states and 1819 transitions. [2020-09-25 09:50:43,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 09:50:43,984 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2020-09-25 09:50:43,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:50:43,995 INFO L225 Difference]: With dead ends: 1461 [2020-09-25 09:50:43,996 INFO L226 Difference]: Without dead ends: 1085 [2020-09-25 09:50:43,999 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 09:50:44,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2020-09-25 09:50:44,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 845. [2020-09-25 09:50:44,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 845 states. [2020-09-25 09:50:44,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 982 transitions. [2020-09-25 09:50:44,181 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 982 transitions. Word has length 172 [2020-09-25 09:50:44,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:50:44,182 INFO L479 AbstractCegarLoop]: Abstraction has 845 states and 982 transitions. [2020-09-25 09:50:44,182 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 09:50:44,182 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 982 transitions. [2020-09-25 09:50:44,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 09:50:44,188 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:50:44,189 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, 1] [2020-09-25 09:50:44,189 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:50:44,189 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:50:44,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:50:44,190 INFO L82 PathProgramCache]: Analyzing trace with hash 102633961, now seen corresponding path program 1 times [2020-09-25 09:50:44,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:50:44,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1400410423] [2020-09-25 09:50:44,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:50:44,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 09:50:44,266 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 09:50:44,267 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 09:50:44,272 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:50:44,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 09:50:44 BoogieIcfgContainer [2020-09-25 09:50:44,301 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 09:50:44,304 INFO L168 Benchmark]: Toolchain (without parser) took 22540.38 ms. Allocated memory was 140.5 MB in the beginning and 513.8 MB in the end (delta: 373.3 MB). Free memory was 101.4 MB in the beginning and 204.5 MB in the end (delta: -103.1 MB). Peak memory consumption was 270.2 MB. Max. memory is 7.1 GB. [2020-09-25 09:50:44,305 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 140.5 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 09:50:44,306 INFO L168 Benchmark]: CACSL2BoogieTranslator took 775.41 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 100.7 MB in the beginning and 169.0 MB in the end (delta: -68.3 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-09-25 09:50:44,307 INFO L168 Benchmark]: Boogie Preprocessor took 112.72 ms. Allocated memory is still 203.4 MB. Free memory was 169.0 MB in the beginning and 164.5 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-09-25 09:50:44,308 INFO L168 Benchmark]: RCFGBuilder took 1484.47 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 164.5 MB in the beginning and 165.9 MB in the end (delta: -1.5 MB). Peak memory consumption was 78.9 MB. Max. memory is 7.1 GB. [2020-09-25 09:50:44,309 INFO L168 Benchmark]: TraceAbstraction took 20158.44 ms. Allocated memory was 235.9 MB in the beginning and 513.8 MB in the end (delta: 277.9 MB). Free memory was 164.6 MB in the beginning and 204.5 MB in the end (delta: -39.9 MB). Peak memory consumption was 237.9 MB. Max. memory is 7.1 GB. [2020-09-25 09:50:44,313 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 140.5 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 775.41 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 100.7 MB in the beginning and 169.0 MB in the end (delta: -68.3 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.72 ms. Allocated memory is still 203.4 MB. Free memory was 169.0 MB in the beginning and 164.5 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1484.47 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 164.5 MB in the beginning and 165.9 MB in the end (delta: -1.5 MB). Peak memory consumption was 78.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20158.44 ms. Allocated memory was 235.9 MB in the beginning and 513.8 MB in the end (delta: 277.9 MB). Free memory was 164.6 MB in the beginning and 204.5 MB in the end (delta: -39.9 MB). Peak memory consumption was 237.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 996]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L90] int pumpRunning = 0; [L91] int systemActive = 1; [L427] int waterLevel = 1; [L428] int methaneLevelCritical = 0; [L699] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L896] int cleanupTimeShifts = 4; [L969] int retValue_acc ; [L970] int tmp ; [L974] FCALL select_helpers() [L975] FCALL select_features() [L976] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L976] RET, EXPR valid_product() [L976] tmp = valid_product() [L978] COND TRUE \read(tmp) [L980] FCALL setup() [L981] CALL runTest() [L963] CALL test() [L358] int splverifierCounter ; [L359] int tmp ; [L360] int tmp___0 ; [L361] int tmp___1 ; [L362] int tmp___2 ; [L365] splverifierCounter = 0 [L367] COND TRUE 1 [L369] COND TRUE splverifierCounter < 4 [L375] tmp = __VERIFIER_nondet_int() [L377] COND TRUE \read(tmp) [L379] CALL waterRise() [L445] COND TRUE waterLevel < 2 [L446] waterLevel = waterLevel + 1 [L379] RET waterRise() [L385] tmp___0 = __VERIFIER_nondet_int() [L387] COND FALSE !(\read(tmp___0)) [L395] tmp___2 = __VERIFIER_nondet_int() [L397] COND FALSE !(\read(tmp___2)) [L403] tmp___1 = __VERIFIER_nondet_int() [L405] COND TRUE \read(tmp___1) [L407] CALL stopSystem() [L334] COND FALSE !(\read(pumpRunning)) [L341] systemActive = 0 [L407] RET stopSystem() [L414] CALL timeShift() [L98] COND FALSE !(\read(pumpRunning)) [L105] COND FALSE !(\read(systemActive)) [L113] CALL __utac_acc__Specification3_spec__1() [L1002] int tmp ; [L1003] int tmp___0 ; [L1004] int tmp___1 ; [L1008] CALL, EXPR isMethaneLevelCritical() [L466] int retValue_acc ; [L469] retValue_acc = methaneLevelCritical [L470] return (retValue_acc); [L1008] RET, EXPR isMethaneLevelCritical() [L1008] tmp = isMethaneLevelCritical() [L1010] COND FALSE !(\read(tmp)) [L1014] CALL, EXPR getWaterLevel() [L498] int retValue_acc ; [L501] retValue_acc = waterLevel [L502] return (retValue_acc); [L1014] RET, EXPR getWaterLevel() [L1014] tmp___0 = getWaterLevel() [L1016] COND TRUE tmp___0 == 2 [L1018] CALL, EXPR isPumpRunning() [L248] int retValue_acc ; [L251] retValue_acc = pumpRunning [L252] return (retValue_acc); [L1018] RET, EXPR isPumpRunning() [L1018] tmp___1 = isPumpRunning() [L1020] COND FALSE !(\read(tmp___1)) [L1024] CALL __automaton_fail() [L996] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 44 procedures, 674 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 11.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 653 SDtfs, 1371 SDslu, 822 SDs, 0 SdLazy, 2417 SolverSat, 537 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=845occurred 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, 2 MinimizatonAttempts, 299 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 502 NumberOfCodeBlocks, 502 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 323 ConstructedInterpolants, 0 QuantifiedInterpolants, 128440 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...