/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_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:59:17,512 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:59:17,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:59:17,561 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:59:17,562 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:59:17,570 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:59:17,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:59:17,575 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:59:17,578 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:59:17,581 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:59:17,582 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:59:17,583 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:59:17,583 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:59:17,590 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:59:17,592 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:59:17,594 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:59:17,596 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:59:17,597 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:59:17,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:59:17,607 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:59:17,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:59:17,611 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:59:17,612 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:59:17,613 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:59:17,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:59:17,632 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:59:17,632 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:59:17,633 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:59:17,633 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:59:17,638 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:59:17,638 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:59:17,639 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:59:17,640 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:59:17,640 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:59:17,641 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:59:17,642 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:59:17,644 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:59:17,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:59:17,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:59:17,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:59:17,646 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:59:17,648 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 02:59:17,692 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:59:17,693 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:59:17,694 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:59:17,695 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:59:17,695 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:59:17,695 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:59:17,696 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:59:17,696 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:59:17,696 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:59:17,696 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:59:17,697 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:59:17,698 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:59:17,698 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:59:17,698 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:59:17,699 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:59:17,699 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:59:17,699 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:59:17,699 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:59:17,699 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:59:17,700 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:59:17,700 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:59:17,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:59:17,701 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:59:17,701 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:59:17,701 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:59:17,701 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:59:17,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:59:17,702 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:59:17,702 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:59:17,702 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 02:59:18,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:59:18,157 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:59:18,161 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:59:18,164 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:59:18,164 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:59:18,165 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product36.cil.c [2020-09-25 02:59:18,259 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/db7e762b1/5b84134bb7ca4f67b019c809efd8023b/FLAG0343d04a1 [2020-09-25 02:59:18,869 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:59:18,870 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product36.cil.c [2020-09-25 02:59:18,886 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/db7e762b1/5b84134bb7ca4f67b019c809efd8023b/FLAG0343d04a1 [2020-09-25 02:59:19,142 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/db7e762b1/5b84134bb7ca4f67b019c809efd8023b [2020-09-25 02:59:19,156 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:59:19,161 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:59:19,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:59:19,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:59:19,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:59:19,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:59:19" (1/1) ... [2020-09-25 02:59:19,172 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:19, skipping insertion in model container [2020-09-25 02:59:19,172 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:59:19" (1/1) ... [2020-09-25 02:59:19,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:59:19,241 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:59:19,832 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:59:19,849 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:59:19,966 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:59:20,018 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:59:20,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:20 WrapperNode [2020-09-25 02:59:20,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:59:20,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:59:20,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:59:20,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:59:20,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:20" (1/1) ... [2020-09-25 02:59:20,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:20" (1/1) ... [2020-09-25 02:59:20,056 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:20" (1/1) ... [2020-09-25 02:59:20,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:20" (1/1) ... [2020-09-25 02:59:20,090 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:20" (1/1) ... [2020-09-25 02:59:20,108 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:20" (1/1) ... [2020-09-25 02:59:20,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:20" (1/1) ... [2020-09-25 02:59:20,121 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:59:20,121 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:59:20,122 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:59:20,122 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:59:20,123 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:20" (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 02:59:20,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:59:20,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:59:20,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 02:59:20,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 02:59:20,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 02:59:20,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 02:59:20,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 02:59:20,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 02:59:20,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 02:59:20,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 02:59:20,247 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 02:59:20,248 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 02:59:20,248 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 02:59:20,248 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 02:59:20,248 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 02:59:20,249 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 02:59:20,249 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 02:59:20,250 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 02:59:20,250 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 02:59:20,250 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 02:59:20,250 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 02:59:20,251 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 02:59:20,251 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 02:59:20,251 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 02:59:20,251 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 02:59:20,252 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 02:59:20,252 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 02:59:20,252 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 02:59:20,253 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 02:59:20,253 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 02:59:20,253 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 02:59:20,253 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 02:59:20,253 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 02:59:20,253 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:59:20,254 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 02:59:20,254 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 02:59:20,254 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 02:59:20,254 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 02:59:20,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 02:59:20,254 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:59:20,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:59:20,255 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 02:59:20,255 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 02:59:20,255 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 02:59:20,255 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:59:20,255 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 02:59:20,256 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 02:59:20,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:59:20,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 02:59:20,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:59:20,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 02:59:20,257 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 02:59:20,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:59:20,257 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 02:59:20,258 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 02:59:20,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:59:20,258 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 02:59:20,258 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 02:59:20,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:59:20,258 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 02:59:20,258 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 02:59:20,259 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 02:59:20,259 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 02:59:20,259 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 02:59:20,259 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 02:59:20,260 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 02:59:20,260 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 02:59:20,260 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 02:59:20,260 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 02:59:20,260 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 02:59:20,261 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 02:59:20,262 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 02:59:20,263 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 02:59:20,263 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 02:59:20,263 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 02:59:20,263 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 02:59:20,263 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 02:59:20,264 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 02:59:20,264 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 02:59:20,264 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 02:59:20,264 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 02:59:20,264 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 02:59:20,266 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 02:59:20,266 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 02:59:20,266 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 02:59:20,267 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 02:59:20,267 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 02:59:20,267 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:59:20,268 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 02:59:20,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:59:20,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 02:59:20,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:59:21,472 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:59:21,473 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 02:59:21,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:59:21 BoogieIcfgContainer [2020-09-25 02:59:21,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:59:21,488 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:59:21,488 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:59:21,492 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:59:21,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:59:19" (1/3) ... [2020-09-25 02:59:21,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d6942c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:59:21, skipping insertion in model container [2020-09-25 02:59:21,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:59:20" (2/3) ... [2020-09-25 02:59:21,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d6942c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:59:21, skipping insertion in model container [2020-09-25 02:59:21,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:59:21" (3/3) ... [2020-09-25 02:59:21,496 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product36.cil.c [2020-09-25 02:59:21,508 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:59:21,519 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:59:21,540 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:59:21,572 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:59:21,572 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:59:21,572 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:59:21,572 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:59:21,573 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:59:21,573 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:59:21,573 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:59:21,573 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:59:21,600 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states. [2020-09-25 02:59:21,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 02:59:21,618 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:59:21,620 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 02:59:21,620 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:59:21,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:59:21,627 INFO L82 PathProgramCache]: Analyzing trace with hash -578069207, now seen corresponding path program 1 times [2020-09-25 02:59:21,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:59:21,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1146560451] [2020-09-25 02:59:21,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:59:22,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:22,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:22,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:23,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:27,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:27,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 02:59:27,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:59:27,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-25 02:59:27,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:27,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 02:59:27,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 02:59:27,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-25 02:59:27,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 02:59:27,677 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:59:27,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:59:27,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:27,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:28,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:28,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:59:28,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:28,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 356 [2020-09-25 02:59:28,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:28,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:28,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:28,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 02:59:28,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:28,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:59:28,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:28,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:28,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:28,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:28,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:28,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:59:28,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:28,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:28,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:28,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:28,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:28,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:59:28,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:28,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:28,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:28,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:28,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:28,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:59:28,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:28,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:28,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:28,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:28,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:28,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:59:28,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:28,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:28,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:28,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:28,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:28,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 02:59:28,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:28,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:28,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:28,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:59:28,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:28,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:59:28,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:28,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:28,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:28,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:28,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:28,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:59:28,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:28,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:28,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:28,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:28,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:28,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 02:59:28,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:28,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:28,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:28,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:28,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:28,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:59:28,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:28,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:28,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:28,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:59:28,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:28,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 02:59:28,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:28,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:28,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:28,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:28,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:28,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 02:59:28,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:28,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:59:28,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:28,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:59:28,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:28,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 02:59:28,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:28,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:28,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:28,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:28,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:28,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:59:28,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:28,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:28,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:59:28,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:28,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:28,423 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 02:59:28,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1146560451] [2020-09-25 02:59:28,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:59:28,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 02:59:28,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312675507] [2020-09-25 02:59:28,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 02:59:28,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:59:28,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 02:59:28,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 02:59:28,468 INFO L87 Difference]: Start difference. First operand 308 states. Second operand 8 states. [2020-09-25 02:59:29,133 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:59:31,013 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:59:31,321 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:59:31,752 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:59:32,119 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:59:32,467 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:59:32,796 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:59:33,128 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:59:34,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:59:34,265 INFO L93 Difference]: Finished difference Result 620 states and 762 transitions. [2020-09-25 02:59:34,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 02:59:34,270 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-25 02:59:34,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:59:34,294 INFO L225 Difference]: With dead ends: 620 [2020-09-25 02:59:34,294 INFO L226 Difference]: Without dead ends: 429 [2020-09-25 02:59:34,302 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 02:59:34,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2020-09-25 02:59:34,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 382. [2020-09-25 02:59:34,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2020-09-25 02:59:34,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 429 transitions. [2020-09-25 02:59:34,470 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 429 transitions. Word has length 153 [2020-09-25 02:59:34,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:59:34,471 INFO L479 AbstractCegarLoop]: Abstraction has 382 states and 429 transitions. [2020-09-25 02:59:34,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 02:59:34,472 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 429 transitions. [2020-09-25 02:59:34,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-09-25 02:59:34,504 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:59:34,504 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 02:59:34,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:59:34,505 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:59:34,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:59:34,506 INFO L82 PathProgramCache]: Analyzing trace with hash 506010603, now seen corresponding path program 1 times [2020-09-25 02:59:34,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:59:34,507 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [861007377] [2020-09-25 02:59:34,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:59:34,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:34,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:34,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:34,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:39,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:39,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:39,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 02:59:39,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 02:59:39,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-09-25 02:59:39,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:39,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 02:59:39,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 02:59:39,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 02:59:39,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:39,920 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:59:39,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:59:39,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:39,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:40,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:40,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:59:40,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:40,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-09-25 02:59:40,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:40,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:40,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:40,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 02:59:40,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:40,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:59:40,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:40,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:40,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:40,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:40,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:40,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:59:40,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:40,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:40,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:40,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:40,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:40,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:59:40,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:40,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:40,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:40,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:40,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:40,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:59:40,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:40,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:40,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:40,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:40,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:40,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:59:40,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:40,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:40,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:40,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:40,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:40,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:59:40,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:40,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:40,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:40,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:59:40,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:40,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:59:40,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:40,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:40,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:40,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:40,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:40,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:59:40,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:40,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:40,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:40,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:40,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:40,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 02:59:40,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:40,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:40,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:40,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:59:40,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:40,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:59:40,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:40,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:40,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:40,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:59:40,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:40,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 02:59:40,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:40,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:40,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:40,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:40,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:40,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:59:40,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:40,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:40,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:59:40,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:40,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:40,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 02:59:40,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:40,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:40,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:40,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:40,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:40,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:59:40,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:40,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:40,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:59:40,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:40,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:40,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 02:59:40,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:40,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:40,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:40,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:40,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:40,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:59:40,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:40,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:40,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:59:40,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:40,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:40,364 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 02:59:40,365 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [861007377] [2020-09-25 02:59:40,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:59:40,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 02:59:40,366 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022414029] [2020-09-25 02:59:40,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 02:59:40,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:59:40,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 02:59:40,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 02:59:40,371 INFO L87 Difference]: Start difference. First operand 382 states and 429 transitions. Second operand 5 states. [2020-09-25 02:59:40,852 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:59:43,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:59:43,199 INFO L93 Difference]: Finished difference Result 1002 states and 1207 transitions. [2020-09-25 02:59:43,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 02:59:43,200 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 159 [2020-09-25 02:59:43,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:59:43,208 INFO L225 Difference]: With dead ends: 1002 [2020-09-25 02:59:43,208 INFO L226 Difference]: Without dead ends: 730 [2020-09-25 02:59:43,212 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 02:59:43,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2020-09-25 02:59:43,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 621. [2020-09-25 02:59:43,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 621 states. [2020-09-25 02:59:43,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 709 transitions. [2020-09-25 02:59:43,328 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 709 transitions. Word has length 159 [2020-09-25 02:59:43,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:59:43,329 INFO L479 AbstractCegarLoop]: Abstraction has 621 states and 709 transitions. [2020-09-25 02:59:43,329 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 02:59:43,329 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 709 transitions. [2020-09-25 02:59:43,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-25 02:59:43,335 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:59:43,335 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] [2020-09-25 02:59:43,336 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:59:43,336 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:59:43,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:59:43,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1758765749, now seen corresponding path program 1 times [2020-09-25 02:59:43,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:59:43,337 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [615712594] [2020-09-25 02:59:43,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:59:43,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:43,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:43,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:44,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:48,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:48,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-09-25 02:59:48,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:59:48,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-09-25 02:59:48,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:48,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 02:59:48,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 02:59:48,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 02:59:48,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:48,921 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:59:48,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:59:48,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:49,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:49,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:49,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:59:49,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:49,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-09-25 02:59:49,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:49,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:49,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:49,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 02:59:49,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:49,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:59:49,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:49,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:49,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:49,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:49,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:49,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:59:49,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:49,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:49,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:49,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:49,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:49,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:59:49,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:49,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:49,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:49,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:49,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:49,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:59:49,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:49,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:49,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:49,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:49,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:49,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:59:49,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:49,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:49,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:49,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:49,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:49,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:59:49,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:49,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:49,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:49,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:59:49,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:49,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:59:49,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:49,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:49,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:49,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:49,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:49,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:59:49,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:49,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:49,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:49,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:49,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:49,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 02:59:49,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:49,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:49,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:49,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:59:49,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:49,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:59:49,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:49,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:49,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:49,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:59:49,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:49,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 02:59:49,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:49,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:49,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:49,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:59:49,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:49,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:59:49,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:49,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:49,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:49,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:59:49,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:49,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 02:59:49,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:49,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:49,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:49,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 02:59:49,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:49,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:59:49,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:49,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:59:49,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 02:59:49,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 02:59:49,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:49,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:59:49,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:49,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:49,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:49,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:59:49,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:49,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:59:49,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:49,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:59:49,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:59:49,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:59:49,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:59:49,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 02:59:49,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:49,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:49,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:49,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:49,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:49,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:59:49,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:49,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:49,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:59:49,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:49,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:49,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 02:59:49,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:49,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:49,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:49,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:49,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:49,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:59:49,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:49,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:49,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:59:49,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:49,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:49,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 02:59:49,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:59:49,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:59:49,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:59:49,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:59:49,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:59:49,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:59:49,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:59:49,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:59:49,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:59:49,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:59:49,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:59:49,556 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 02:59:49,557 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [615712594] [2020-09-25 02:59:49,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:59:49,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 02:59:49,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911569440] [2020-09-25 02:59:49,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 02:59:49,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:59:49,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 02:59:49,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-25 02:59:49,561 INFO L87 Difference]: Start difference. First operand 621 states and 709 transitions. Second operand 9 states. [2020-09-25 02:59:50,084 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:59:51,802 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:59:54,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:59:54,174 INFO L93 Difference]: Finished difference Result 1874 states and 2401 transitions. [2020-09-25 02:59:54,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-25 02:59:54,174 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 180 [2020-09-25 02:59:54,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:59:54,187 INFO L225 Difference]: With dead ends: 1874 [2020-09-25 02:59:54,187 INFO L226 Difference]: Without dead ends: 1363 [2020-09-25 02:59:54,191 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=165, Invalid=435, Unknown=0, NotChecked=0, Total=600 [2020-09-25 02:59:54,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2020-09-25 02:59:54,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1045. [2020-09-25 02:59:54,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1045 states. [2020-09-25 02:59:54,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1210 transitions. [2020-09-25 02:59:54,360 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1210 transitions. Word has length 180 [2020-09-25 02:59:54,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:59:54,360 INFO L479 AbstractCegarLoop]: Abstraction has 1045 states and 1210 transitions. [2020-09-25 02:59:54,360 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 02:59:54,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1210 transitions. [2020-09-25 02:59:54,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 02:59:54,365 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:59:54,365 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 02:59:54,366 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:59:54,366 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:59:54,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:59:54,366 INFO L82 PathProgramCache]: Analyzing trace with hash -254126211, now seen corresponding path program 1 times [2020-09-25 02:59:54,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:59:54,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [844106317] [2020-09-25 02:59:54,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:59:54,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 02:59:54,433 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 02:59:54,433 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 02:59:54,438 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 02:59:54,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:59:54 BoogieIcfgContainer [2020-09-25 02:59:54,466 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 02:59:54,468 INFO L168 Benchmark]: Toolchain (without parser) took 35310.54 ms. Allocated memory was 139.5 MB in the beginning and 554.2 MB in the end (delta: 414.7 MB). Free memory was 101.5 MB in the beginning and 167.1 MB in the end (delta: -65.6 MB). Peak memory consumption was 349.1 MB. Max. memory is 7.1 GB. [2020-09-25 02:59:54,469 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 02:59:54,470 INFO L168 Benchmark]: CACSL2BoogieTranslator took 857.95 ms. Allocated memory was 139.5 MB in the beginning and 207.1 MB in the end (delta: 67.6 MB). Free memory was 100.8 MB in the beginning and 176.2 MB in the end (delta: -75.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. [2020-09-25 02:59:54,471 INFO L168 Benchmark]: Boogie Preprocessor took 100.93 ms. Allocated memory is still 207.1 MB. Free memory was 176.2 MB in the beginning and 172.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-25 02:59:54,472 INFO L168 Benchmark]: RCFGBuilder took 1365.28 ms. Allocated memory was 207.1 MB in the beginning and 235.4 MB in the end (delta: 28.3 MB). Free memory was 171.5 MB in the beginning and 178.2 MB in the end (delta: -6.7 MB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB. [2020-09-25 02:59:54,473 INFO L168 Benchmark]: TraceAbstraction took 32978.31 ms. Allocated memory was 235.4 MB in the beginning and 554.2 MB in the end (delta: 318.8 MB). Free memory was 176.8 MB in the beginning and 167.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 328.5 MB. Max. memory is 7.1 GB. [2020-09-25 02:59:54,477 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 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 857.95 ms. Allocated memory was 139.5 MB in the beginning and 207.1 MB in the end (delta: 67.6 MB). Free memory was 100.8 MB in the beginning and 176.2 MB in the end (delta: -75.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.93 ms. Allocated memory is still 207.1 MB. Free memory was 176.2 MB in the beginning and 172.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1365.28 ms. Allocated memory was 207.1 MB in the beginning and 235.4 MB in the end (delta: 28.3 MB). Free memory was 171.5 MB in the beginning and 178.2 MB in the end (delta: -6.7 MB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 32978.31 ms. Allocated memory was 235.4 MB in the beginning and 554.2 MB in the end (delta: 318.8 MB). Free memory was 176.8 MB in the beginning and 167.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 328.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L218] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L426] int pumpRunning = 0; [L427] int systemActive = 1; [L675] int waterLevel = 1; [L676] int methaneLevelCritical = 0; [L769] int cleanupTimeShifts = 4; [L845] int retValue_acc ; [L846] int tmp ; [L850] FCALL select_helpers() [L851] FCALL select_features() [L852] CALL, EXPR valid_product() [L894] int retValue_acc ; [L897] retValue_acc = 1 [L898] return (retValue_acc); [L852] RET, EXPR valid_product() [L852] tmp = valid_product() [L854] COND TRUE \read(tmp) [L856] FCALL setup() [L857] CALL runTest() [L836] CALL test() [L606] int splverifierCounter ; [L607] int tmp ; [L608] int tmp___0 ; [L609] int tmp___1 ; [L610] int tmp___2 ; [L613] splverifierCounter = 0 [L615] COND TRUE 1 [L617] COND TRUE splverifierCounter < 4 [L623] tmp = __VERIFIER_nondet_int() [L625] COND TRUE \read(tmp) [L627] CALL waterRise() [L693] COND TRUE waterLevel < 2 [L694] waterLevel = waterLevel + 1 [L627] RET waterRise() [L633] tmp___0 = __VERIFIER_nondet_int() [L635] COND FALSE !(\read(tmp___0)) [L643] tmp___2 = __VERIFIER_nondet_int() [L645] COND FALSE !(\read(tmp___2)) [L651] tmp___1 = __VERIFIER_nondet_int() [L653] COND TRUE \read(tmp___1) [L655] CALL stopSystem() [L582] COND FALSE !(\read(pumpRunning)) [L589] systemActive = 0 [L655] RET stopSystem() [L662] CALL timeShift() [L434] COND FALSE !(\read(pumpRunning)) [L441] COND FALSE !(\read(systemActive)) [L449] CALL __utac_acc__Specification3_spec__1() [L904] int tmp ; [L905] int tmp___0 ; [L906] int tmp___1 ; [L910] CALL, EXPR isMethaneLevelCritical() [L714] int retValue_acc ; [L717] retValue_acc = methaneLevelCritical [L718] return (retValue_acc); [L910] RET, EXPR isMethaneLevelCritical() [L910] tmp = isMethaneLevelCritical() [L912] COND FALSE !(\read(tmp)) [L916] CALL, EXPR getWaterLevel() [L746] int retValue_acc ; [L749] retValue_acc = waterLevel [L750] return (retValue_acc); [L916] RET, EXPR getWaterLevel() [L916] tmp___0 = getWaterLevel() [L918] COND TRUE tmp___0 == 2 [L920] CALL, EXPR isPumpRunning() [L515] int retValue_acc ; [L518] retValue_acc = pumpRunning [L519] return (retValue_acc); [L920] RET, EXPR isPumpRunning() [L920] tmp___1 = isPumpRunning() [L922] COND FALSE !(\read(tmp___1)) [L926] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 622 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 32.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 13.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 796 SDtfs, 1774 SDslu, 1317 SDs, 0 SdLazy, 2865 SolverSat, 631 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1045occurred 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: 0.4s AutomataMinimizationTime, 3 MinimizatonAttempts, 474 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 18.2s InterpolantComputationTime, 669 NumberOfCodeBlocks, 669 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 489 ConstructedInterpolants, 0 QuantifiedInterpolants, 218972 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...