/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=WIDEST --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_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:59:37,529 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:59:37,534 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:59:37,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:59:37,580 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:59:37,588 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:59:37,591 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:59:37,594 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:59:37,597 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:59:37,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:59:37,601 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:59:37,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:59:37,603 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:59:37,606 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:59:37,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:59:37,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:59:37,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:59:37,614 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:59:37,616 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:59:37,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:59:37,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:59:37,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:59:37,628 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:59:37,629 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:59:37,641 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:59:37,642 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:59:37,642 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:59:37,643 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:59:37,643 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:59:37,644 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:59:37,644 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:59:37,646 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:59:37,647 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:59:37,648 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:59:37,649 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:59:37,649 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:59:37,650 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:59:37,650 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:59:37,650 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:59:37,652 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:59:37,653 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:59:37,654 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 02:59:37,698 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:59:37,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:59:37,700 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:59:37,701 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:59:37,701 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:59:37,701 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:59:37,701 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:59:37,702 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:59:37,702 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:59:37,702 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:59:37,703 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:59:37,703 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:59:37,703 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:59:37,704 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:59:37,704 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:59:37,704 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:59:37,704 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:59:37,705 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:59:37,705 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:59:37,705 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:59:37,705 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:59:37,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:59:37,706 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:59:37,706 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:59:37,706 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:59:37,706 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:59:37,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:59:37,707 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:59:37,707 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:59:37,707 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true; [2020-09-25 02:59:38,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:59:38,148 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:59:38,152 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:59:38,154 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:59:38,155 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:59:38,156 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product52.cil.c [2020-09-25 02:59:38,239 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/21a4a5a1e/13a445b298154256a104ffcbcea56c3d/FLAG8e822c335 [2020-09-25 02:59:38,832 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:59:38,833 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product52.cil.c [2020-09-25 02:59:38,851 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/21a4a5a1e/13a445b298154256a104ffcbcea56c3d/FLAG8e822c335 [2020-09-25 02:59:39,131 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/21a4a5a1e/13a445b298154256a104ffcbcea56c3d [2020-09-25 02:59:39,144 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:59:39,150 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:59:39,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:59:39,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:59:39,155 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:59:39,156 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:59:39" (1/1) ... [2020-09-25 02:59:39,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b58255d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:39, skipping insertion in model container [2020-09-25 02:59:39,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:59:39" (1/1) ... [2020-09-25 02:59:39,171 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:59:39,225 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:59:39,827 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:59:39,849 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:59:39,944 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:59:39,983 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:59:39,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:39 WrapperNode [2020-09-25 02:59:39,983 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:59:39,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:59:39,984 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:59:39,985 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:59:40,002 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:39" (1/1) ... [2020-09-25 02:59:40,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:39" (1/1) ... [2020-09-25 02:59:40,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:39" (1/1) ... [2020-09-25 02:59:40,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:39" (1/1) ... [2020-09-25 02:59:40,059 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:39" (1/1) ... [2020-09-25 02:59:40,071 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:39" (1/1) ... [2020-09-25 02:59:40,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:39" (1/1) ... [2020-09-25 02:59:40,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:59:40,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:59:40,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:59:40,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:59:40,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:39" (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 02:59:40,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:59:40,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:59:40,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 02:59:40,177 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 02:59:40,177 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 02:59:40,177 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 02:59:40,177 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 02:59:40,178 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 02:59:40,179 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 02:59:40,179 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 02:59:40,179 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 02:59:40,179 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 02:59:40,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 02:59:40,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 02:59:40,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 02:59:40,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 02:59:40,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 02:59:40,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 02:59:40,181 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 02:59:40,182 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 02:59:40,183 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 02:59:40,183 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 02:59:40,183 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 02:59:40,184 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 02:59:40,185 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 02:59:40,186 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 02:59:40,186 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 02:59:40,186 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 02:59:40,186 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 02:59:40,187 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 02:59:40,187 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 02:59:40,187 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 02:59:40,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 02:59:40,187 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 02:59:40,187 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 02:59:40,188 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 02:59:40,188 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 02:59:40,188 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 02:59:40,188 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 02:59:40,188 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 02:59:40,188 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 02:59:40,188 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:59:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:59:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:59:40,189 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 02:59:40,191 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 02:59:40,191 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 02:59:40,191 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 02:59:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 02:59:40,192 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 02:59:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 02:59:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 02:59:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 02:59:40,193 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 02:59:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 02:59:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 02:59:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:59:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 02:59:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:59:40,194 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 02:59:40,195 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 02:59:40,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:59:40,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 02:59:40,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:59:40,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 02:59:40,196 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 02:59:40,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:59:40,196 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 02:59:40,196 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 02:59:40,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:59:40,197 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 02:59:40,198 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 02:59:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 02:59:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 02:59:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 02:59:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 02:59:40,199 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 02:59:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 02:59:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 02:59:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 02:59:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 02:59:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 02:59:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 02:59:40,200 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 02:59:40,201 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 02:59:40,201 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 02:59:40,201 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 02:59:40,201 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 02:59:40,201 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 02:59:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 02:59:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 02:59:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 02:59:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 02:59:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 02:59:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:59:40,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:59:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 02:59:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:59:41,402 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:59:41,403 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 02:59:41,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:59:41 BoogieIcfgContainer [2020-09-25 02:59:41,413 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:59:41,414 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:59:41,414 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:59:41,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:59:41,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:59:39" (1/3) ... [2020-09-25 02:59:41,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@279d1650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:59:41, skipping insertion in model container [2020-09-25 02:59:41,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:39" (2/3) ... [2020-09-25 02:59:41,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@279d1650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:59:41, skipping insertion in model container [2020-09-25 02:59:41,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:59:41" (3/3) ... [2020-09-25 02:59:41,423 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product52.cil.c [2020-09-25 02:59:41,435 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:59:41,447 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:59:41,470 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:59:41,506 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:59:41,506 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:59:41,506 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:59:41,507 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:59:41,507 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:59:41,507 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:59:41,507 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:59:41,507 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:59:41,538 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states. [2020-09-25 02:59:41,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 02:59:41,560 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:59:41,562 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 02:59:41,562 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:59:41,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:59:41,571 INFO L82 PathProgramCache]: Analyzing trace with hash 71377499, now seen corresponding path program 1 times [2020-09-25 02:59:41,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:59:41,584 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [912273432] [2020-09-25 02:59:41,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:59:42,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:42,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:42,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:43,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:47,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:47,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 02:59:47,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:59:47,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-09-25 02:59:47,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:47,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 02:59:47,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 02:59:47,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 02:59:47,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 02:59:47,526 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:59:47,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:59:47,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:47,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:47,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:47,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:59:47,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:47,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 314 [2020-09-25 02:59:47,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:47,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:47,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:47,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 02:59:47,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:47,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:59:47,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:47,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:47,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:47,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:47,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:47,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:59:47,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:47,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:47,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:47,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:47,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:47,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:59:47,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:47,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:48,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:48,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:48,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:48,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 02:59:48,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:48,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:48,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:48,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:48,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:48,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:59:48,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:48,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:48,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:48,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:48,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:48,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:59:48,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:48,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:48,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:48,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:59:48,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:48,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:59:48,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:48,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:48,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:48,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:48,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:48,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:59:48,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:48,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:48,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:48,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:48,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:48,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 02:59:48,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:48,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:48,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:48,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:48,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:48,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:59:48,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:48,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:48,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:48,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:59:48,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:48,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 02:59:48,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:48,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:48,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:48,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:48,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:48,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:59:48,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:48,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:59:48,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:48,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:59:48,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:48,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 02:59:48,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:48,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:48,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:48,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:48,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:48,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:59:48,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:48,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:48,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:59:48,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:48,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:48,133 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 02:59:48,134 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [912273432] [2020-09-25 02:59:48,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:59:48,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 02:59:48,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091917273] [2020-09-25 02:59:48,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 02:59:48,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:59:48,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 02:59:48,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 02:59:48,166 INFO L87 Difference]: Start difference. First operand 339 states. Second operand 8 states. [2020-09-25 02:59:48,773 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:59:50,730 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:59:51,142 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:59:51,583 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:59:52,038 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:59:52,380 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:59:52,697 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:59:53,042 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:59:54,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:59:54,472 INFO L93 Difference]: Finished difference Result 717 states and 878 transitions. [2020-09-25 02:59:54,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 02:59:54,478 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-25 02:59:54,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:59:54,502 INFO L225 Difference]: With dead ends: 717 [2020-09-25 02:59:54,503 INFO L226 Difference]: Without dead ends: 495 [2020-09-25 02:59:54,509 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 02:59:54,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2020-09-25 02:59:54,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 446. [2020-09-25 02:59:54,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2020-09-25 02:59:54,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 504 transitions. [2020-09-25 02:59:54,715 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 504 transitions. Word has length 153 [2020-09-25 02:59:54,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:59:54,716 INFO L479 AbstractCegarLoop]: Abstraction has 446 states and 504 transitions. [2020-09-25 02:59:54,716 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 02:59:54,717 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 504 transitions. [2020-09-25 02:59:54,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-09-25 02:59:54,724 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:59:54,725 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 02:59:54,725 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:59:54,725 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:59:54,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:59:54,726 INFO L82 PathProgramCache]: Analyzing trace with hash -2081081344, now seen corresponding path program 1 times [2020-09-25 02:59:54,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:59:54,726 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1448889506] [2020-09-25 02:59:54,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:59:54,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:54,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:54,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:55,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:59,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:59,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 02:59:59,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:59:59,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 02:59:59,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:59,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 02:59:59,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 02:59:59,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 02:59:59,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:00,148 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 03:00:00,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:00:00,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:00,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:00,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:00,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 03:00:00,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:00,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-09-25 03:00:00,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:00,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:00,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:00,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 03:00:00,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:00:00,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 03:00:00,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:00,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:00,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:00,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:00:00,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:00,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:00:00,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:00,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:00,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:00,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:00:00,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:00,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 03:00:00,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:00,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:00,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:00,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:00:00,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:00,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:00:00,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:00,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:00,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:00,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:00:00,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:00,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 03:00:00,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:00,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:00,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:00,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:00:00,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:00,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:00:00,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:00,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:00,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:00,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:00:00,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:00,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 03:00:00,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:00,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:00,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:00,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:00:00,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:00,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:00:00,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:00,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:00,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:00,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:00:00,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:00,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 03:00:00,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:00,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:00,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:00,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:00:00,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:00,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:00:00,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:00,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:00,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:00,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:00:00,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:00,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 03:00:00,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:00,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:00,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:00,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:00:00,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:00,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:00:00,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:00,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:00:00,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:00:00,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:00:00,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:00:00,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 03:00:00,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:00,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:00,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:00,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:00:00,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:00,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:00:00,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:00,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:00:00,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:00:00,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:00:00,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:00,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 03:00:00,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:00,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:00,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:00,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:00:00,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:00,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:00:00,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:00,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:00:00,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:00:00,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:00:00,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:00,644 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 03:00:00,645 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1448889506] [2020-09-25 03:00:00,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:00:00,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 03:00:00,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474982866] [2020-09-25 03:00:00,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 03:00:00,650 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:00:00,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 03:00:00,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 03:00:00,651 INFO L87 Difference]: Start difference. First operand 446 states and 504 transitions. Second operand 6 states. [2020-09-25 03:00:01,212 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 03:00:02,194 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:00:05,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:00:05,478 INFO L93 Difference]: Finished difference Result 1385 states and 1708 transitions. [2020-09-25 03:00:05,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 03:00:05,480 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 159 [2020-09-25 03:00:05,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:00:05,506 INFO L225 Difference]: With dead ends: 1385 [2020-09-25 03:00:05,506 INFO L226 Difference]: Without dead ends: 1049 [2020-09-25 03:00:05,516 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 03:00:05,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2020-09-25 03:00:05,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 931. [2020-09-25 03:00:05,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 931 states. [2020-09-25 03:00:05,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1091 transitions. [2020-09-25 03:00:05,762 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1091 transitions. Word has length 159 [2020-09-25 03:00:05,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:00:05,763 INFO L479 AbstractCegarLoop]: Abstraction has 931 states and 1091 transitions. [2020-09-25 03:00:05,763 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 03:00:05,763 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1091 transitions. [2020-09-25 03:00:05,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-09-25 03:00:05,769 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:00:05,769 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:00:05,769 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:00:05,770 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:00:05,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:00:05,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1447249450, now seen corresponding path program 1 times [2020-09-25 03:00:05,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:00:05,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2003374157] [2020-09-25 03:00:05,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:00:05,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:05,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:06,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:06,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:07,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:10,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:10,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-09-25 03:00:10,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:00:10,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 03:00:10,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:10,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 03:00:10,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 03:00:10,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-09-25 03:00:10,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:11,101 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 03:00:11,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:00:11,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:11,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:11,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:11,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 03:00:11,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:11,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-09-25 03:00:11,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:11,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:11,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:11,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 03:00:11,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:11,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 03:00:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:11,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:11,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:11,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:00:11,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:11,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:00:11,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:11,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:11,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:11,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:00:11,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:00:11,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 03:00:11,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:11,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:11,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:11,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:00:11,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:11,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:00:11,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:11,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:11,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:11,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:00:11,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:00:11,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 03:00:11,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:11,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:11,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:11,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:00:11,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:11,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:00:11,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:11,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:11,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:11,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:00:11,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:11,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 03:00:11,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:11,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:11,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:11,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:00:11,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:11,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:00:11,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:11,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:11,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:11,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:00:11,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:00:11,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 03:00:11,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:11,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:11,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:11,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:00:11,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:11,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:00:11,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:11,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:11,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:11,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 03:00:11,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:11,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 03:00:11,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:11,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:11,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:11,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:00:11,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:11,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:00:11,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:11,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:11,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:11,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:00:11,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:11,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 03:00:11,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:11,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:11,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:11,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:11,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 03:00:11,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:00:11,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 03:00:11,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:11,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:00:11,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:00:11,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 03:00:11,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:11,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:00:11,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:11,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:11,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:11,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 03:00:11,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:11,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 03:00:11,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:11,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:00:11,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:00:11,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 03:00:11,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:00:11,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:00:11,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:11,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:11,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:11,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:00:11,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:11,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:00:11,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:11,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:00:11,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:00:11,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:00:11,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:11,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 03:00:11,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:11,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:11,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:11,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:00:11,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:11,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:00:11,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:11,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:00:11,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:00:11,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:00:11,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:11,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-25 03:00:11,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:11,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:11,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:11,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:00:11,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:11,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:00:11,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:11,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:00:11,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:00:11,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:00:11,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:11,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-25 03:00:11,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:00:11,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:00:11,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:00:11,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:00:11,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:00:11,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:00:11,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:00:11,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:00:11,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:00:11,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:00:11,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:00:11,661 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 03:00:11,662 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2003374157] [2020-09-25 03:00:11,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:00:11,664 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 03:00:11,664 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886884643] [2020-09-25 03:00:11,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 03:00:11,667 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:00:11,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 03:00:11,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 03:00:11,667 INFO L87 Difference]: Start difference. First operand 931 states and 1091 transitions. Second operand 8 states. [2020-09-25 03:00:12,223 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 03:00:14,087 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:00:17,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:00:17,156 INFO L93 Difference]: Finished difference Result 2549 states and 3358 transitions. [2020-09-25 03:00:17,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-25 03:00:17,157 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 185 [2020-09-25 03:00:17,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:00:17,170 INFO L225 Difference]: With dead ends: 2549 [2020-09-25 03:00:17,170 INFO L226 Difference]: Without dead ends: 1728 [2020-09-25 03:00:17,175 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=169, Invalid=533, Unknown=0, NotChecked=0, Total=702 [2020-09-25 03:00:17,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1728 states. [2020-09-25 03:00:17,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1728 to 1304. [2020-09-25 03:00:17,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1304 states. [2020-09-25 03:00:17,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 1534 transitions. [2020-09-25 03:00:17,365 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 1534 transitions. Word has length 185 [2020-09-25 03:00:17,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:00:17,366 INFO L479 AbstractCegarLoop]: Abstraction has 1304 states and 1534 transitions. [2020-09-25 03:00:17,366 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 03:00:17,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 1534 transitions. [2020-09-25 03:00:17,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 03:00:17,370 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:00:17,370 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 03:00:17,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:00:17,370 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:00:17,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:00:17,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1049977612, now seen corresponding path program 1 times [2020-09-25 03:00:17,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:00:17,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [367884134] [2020-09-25 03:00:17,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:00:17,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 03:00:17,453 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 03:00:17,453 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 03:00:17,459 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 03:00:17,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 03:00:17 BoogieIcfgContainer [2020-09-25 03:00:17,488 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 03:00:17,491 INFO L168 Benchmark]: Toolchain (without parser) took 38345.05 ms. Allocated memory was 140.0 MB in the beginning and 638.1 MB in the end (delta: 498.1 MB). Free memory was 101.8 MB in the beginning and 340.8 MB in the end (delta: -239.0 MB). Peak memory consumption was 259.1 MB. Max. memory is 7.1 GB. [2020-09-25 03:00:17,492 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-09-25 03:00:17,493 INFO L168 Benchmark]: CACSL2BoogieTranslator took 833.30 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.4 MB in the beginning and 171.2 MB in the end (delta: -69.8 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2020-09-25 03:00:17,494 INFO L168 Benchmark]: Boogie Preprocessor took 101.04 ms. Allocated memory is still 203.4 MB. Free memory was 171.2 MB in the beginning and 166.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-09-25 03:00:17,495 INFO L168 Benchmark]: RCFGBuilder took 1326.94 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 166.3 MB in the beginning and 170.9 MB in the end (delta: -4.6 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB. [2020-09-25 03:00:17,495 INFO L168 Benchmark]: TraceAbstraction took 36074.77 ms. Allocated memory was 236.5 MB in the beginning and 638.1 MB in the end (delta: 401.6 MB). Free memory was 170.9 MB in the beginning and 340.8 MB in the end (delta: -169.9 MB). Peak memory consumption was 231.7 MB. Max. memory is 7.1 GB. [2020-09-25 03:00:17,500 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 833.30 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.4 MB in the beginning and 171.2 MB in the end (delta: -69.8 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 101.04 ms. Allocated memory is still 203.4 MB. Free memory was 171.2 MB in the beginning and 166.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1326.94 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 166.3 MB in the beginning and 170.9 MB in the end (delta: -4.6 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 36074.77 ms. Allocated memory was 236.5 MB in the beginning and 638.1 MB in the end (delta: 401.6 MB). Free memory was 170.9 MB in the beginning and 340.8 MB in the end (delta: -169.9 MB). Peak memory consumption was 231.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 853]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L84] int waterLevel = 1; [L85] int methaneLevelCritical = 0; [L356] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L559] int pumpRunning = 0; [L560] int systemActive = 1; [L896] int cleanupTimeShifts = 4; [L969] int retValue_acc ; [L970] int tmp ; [L974] FCALL select_helpers() [L975] FCALL select_features() [L976] CALL, EXPR valid_product() [L887] int retValue_acc ; [L890] retValue_acc = 1 [L891] 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() [L781] int splverifierCounter ; [L782] int tmp ; [L783] int tmp___0 ; [L784] int tmp___1 ; [L785] int tmp___2 ; [L788] splverifierCounter = 0 [L790] COND TRUE 1 [L792] COND TRUE splverifierCounter < 4 [L798] tmp = __VERIFIER_nondet_int() [L800] COND TRUE \read(tmp) [L802] CALL waterRise() [L102] COND TRUE waterLevel < 2 [L103] waterLevel = waterLevel + 1 [L802] RET waterRise() [L808] tmp___0 = __VERIFIER_nondet_int() [L810] COND FALSE !(\read(tmp___0)) [L818] tmp___2 = __VERIFIER_nondet_int() [L820] COND FALSE !(\read(tmp___2)) [L826] tmp___1 = __VERIFIER_nondet_int() [L828] COND TRUE \read(tmp___1) [L830] CALL stopSystem() [L759] COND FALSE !(\read(pumpRunning)) [L766] systemActive = 0 [L830] RET stopSystem() [L837] CALL timeShift() [L566] COND FALSE !(\read(pumpRunning)) [L573] COND FALSE !(\read(systemActive)) [L581] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L123] int retValue_acc ; [L126] retValue_acc = methaneLevelCritical [L127] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L155] int retValue_acc ; [L158] retValue_acc = waterLevel [L159] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L673] int retValue_acc ; [L676] retValue_acc = pumpRunning [L677] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L853] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 653 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 35.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 16.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 918 SDtfs, 2187 SDslu, 1467 SDs, 0 SdLazy, 3528 SolverSat, 871 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 127 GetRequests, 79 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1304occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 3 MinimizatonAttempts, 591 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 17.6s InterpolantComputationTime, 674 NumberOfCodeBlocks, 674 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 494 ConstructedInterpolants, 0 QuantifiedInterpolants, 223222 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...