/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=SMALLEST --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_product08.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:00:15,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:00:15,986 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:00:16,033 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:00:16,034 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:00:16,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:00:16,048 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:00:16,051 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:00:16,054 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:00:16,058 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:00:16,059 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:00:16,060 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:00:16,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:00:16,063 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:00:16,066 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:00:16,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:00:16,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:00:16,073 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:00:16,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:00:16,085 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:00:16,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:00:16,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:00:16,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:00:16,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:00:16,093 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:00:16,094 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:00:16,094 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:00:16,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:00:16,097 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:00:16,098 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:00:16,099 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:00:16,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:00:16,101 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:00:16,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:00:16,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:00:16,103 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:00:16,104 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:00:16,104 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:00:16,105 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:00:16,106 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:00:16,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:00:16,108 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 [2020-09-24 18:00:16,155 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:00:16,156 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:00:16,158 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:00:16,158 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:00:16,158 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:00:16,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:00:16,159 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:00:16,159 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:00:16,159 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:00:16,159 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:00:16,161 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:00:16,161 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:00:16,161 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:00:16,161 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:00:16,162 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:00:16,162 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:00:16,162 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:00:16,162 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:00:16,162 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:00:16,163 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:00:16,163 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:00:16,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:00:16,163 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:00:16,164 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:00:16,164 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:00:16,164 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:00:16,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:00:16,164 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:00:16,165 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:00:16,165 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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;log-additional-information=true; [2020-09-24 18:00:16,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:00:16,603 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:00:16,607 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:00:16,609 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:00:16,609 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:00:16,610 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c [2020-09-24 18:00:16,688 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fa5974bd6/cede1aa0c24e4475a97cc2feb55a7f7c/FLAGfc8508519 [2020-09-24 18:00:17,304 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:00:17,305 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product08.cil.c [2020-09-24 18:00:17,320 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fa5974bd6/cede1aa0c24e4475a97cc2feb55a7f7c/FLAGfc8508519 [2020-09-24 18:00:17,543 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fa5974bd6/cede1aa0c24e4475a97cc2feb55a7f7c [2020-09-24 18:00:17,556 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:00:17,561 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:00:17,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:00:17,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:00:17,568 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:00:17,568 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:00:17" (1/1) ... [2020-09-24 18:00:17,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@794240ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:17, skipping insertion in model container [2020-09-24 18:00:17,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:00:17" (1/1) ... [2020-09-24 18:00:17,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:00:17,631 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:00:18,077 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:00:18,094 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:00:18,211 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:00:18,254 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:00:18,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:18 WrapperNode [2020-09-24 18:00:18,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:00:18,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:00:18,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:00:18,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:00:18,271 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:18" (1/1) ... [2020-09-24 18:00:18,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:18" (1/1) ... [2020-09-24 18:00:18,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:18" (1/1) ... [2020-09-24 18:00:18,291 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:18" (1/1) ... [2020-09-24 18:00:18,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:18" (1/1) ... [2020-09-24 18:00:18,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:18" (1/1) ... [2020-09-24 18:00:18,335 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:18" (1/1) ... [2020-09-24 18:00:18,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:00:18,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:00:18,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:00:18,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:00:18,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:18" (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 [2020-09-24 18:00:18,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:00:18,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:00:18,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 18:00:18,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 18:00:18,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 18:00:18,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 18:00:18,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 18:00:18,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 18:00:18,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 18:00:18,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 18:00:18,419 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 18:00:18,419 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 18:00:18,419 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 18:00:18,420 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 18:00:18,420 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 18:00:18,420 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 18:00:18,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 18:00:18,420 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 18:00:18,421 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 18:00:18,421 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 18:00:18,421 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 18:00:18,421 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 18:00:18,422 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 18:00:18,422 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 18:00:18,422 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 18:00:18,422 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 18:00:18,422 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 18:00:18,422 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 18:00:18,422 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 18:00:18,423 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 18:00:18,423 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 18:00:18,423 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 18:00:18,423 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 18:00:18,423 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 18:00:18,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 18:00:18,424 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 18:00:18,424 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:00:18,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:00:18,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:00:18,424 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 18:00:18,424 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 18:00:18,425 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 18:00:18,425 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 18:00:18,425 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 18:00:18,425 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 18:00:18,425 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 18:00:18,425 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:00:18,425 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:00:18,426 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 18:00:18,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:00:18,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:00:18,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:00:18,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:00:18,427 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 18:00:18,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:00:18,427 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 18:00:18,427 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 18:00:18,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:00:18,427 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 18:00:18,427 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 18:00:18,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:00:18,428 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 18:00:18,428 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 18:00:18,428 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 18:00:18,428 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 18:00:18,428 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 18:00:18,429 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 18:00:18,429 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 18:00:18,429 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 18:00:18,429 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 18:00:18,429 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 18:00:18,429 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 18:00:18,429 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 18:00:18,430 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 18:00:18,430 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 18:00:18,430 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 18:00:18,430 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 18:00:18,430 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 18:00:18,430 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 18:00:18,431 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 18:00:18,431 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 18:00:18,431 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 18:00:18,431 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 18:00:18,431 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 18:00:18,431 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:00:18,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:00:18,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:00:18,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:00:19,516 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:00:19,516 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 18:00:19,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:00:19 BoogieIcfgContainer [2020-09-24 18:00:19,523 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:00:19,525 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:00:19,525 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:00:19,528 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:00:19,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:00:17" (1/3) ... [2020-09-24 18:00:19,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c28fab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:00:19, skipping insertion in model container [2020-09-24 18:00:19,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:18" (2/3) ... [2020-09-24 18:00:19,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c28fab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:00:19, skipping insertion in model container [2020-09-24 18:00:19,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:00:19" (3/3) ... [2020-09-24 18:00:19,532 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product08.cil.c [2020-09-24 18:00:19,544 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:00:19,555 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:00:19,577 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:00:19,607 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:00:19,607 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:00:19,607 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:00:19,607 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:00:19,607 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:00:19,608 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:00:19,608 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:00:19,608 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:00:19,633 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states. [2020-09-24 18:00:19,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 18:00:19,650 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:00:19,651 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] [2020-09-24 18:00:19,652 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:00:19,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:00:19,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1628156155, now seen corresponding path program 1 times [2020-09-24 18:00:19,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:00:19,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [541586538] [2020-09-24 18:00:19,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:00:19,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:20,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:20,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:21,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:25,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:25,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 18:00:25,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:00:25,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-24 18:00:25,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:25,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:25,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 18:00:25,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:25,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 18:00:25,531 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:00:25,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:00:25,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:25,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:25,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:25,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:00:25,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:25,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-24 18:00:25,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:25,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:25,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:25,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:25,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:25,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:00:25,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:25,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:25,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:25,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:25,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:25,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:00:25,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:25,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:25,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:25,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:25,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:25,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:00:25,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:25,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:25,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:25,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:25,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:25,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:00:25,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:25,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:25,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:25,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:25,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:25,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:00:25,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:25,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:25,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:25,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:25,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:25,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:00:25,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:25,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:25,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:25,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:25,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:25,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:00:25,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:25,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:25,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:25,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:25,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:25,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:00:25,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:25,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:25,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:25,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:25,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:25,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 18:00:25,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:25,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:25,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:25,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:25,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:25,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:00:25,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:25,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:25,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:00:25,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:25,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:25,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 18:00:25,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:25,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:25,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:25,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:25,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:25,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:00:25,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:25,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:25,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:00:25,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:25,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:25,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 18:00:25,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:25,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:25,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:25,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:25,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:25,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:00:25,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:25,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:25,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:00:25,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:25,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:25,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:00:25,952 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [541586538] [2020-09-24 18:00:25,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:00:25,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:00:25,956 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735194828] [2020-09-24 18:00:25,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:00:25,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:00:25,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:00:25,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:00:26,003 INFO L87 Difference]: Start difference. First operand 285 states. Second operand 3 states. [2020-09-24 18:00:27,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:00:27,440 INFO L93 Difference]: Finished difference Result 436 states and 524 transitions. [2020-09-24 18:00:27,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:00:27,442 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 18:00:27,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:00:27,463 INFO L225 Difference]: With dead ends: 436 [2020-09-24 18:00:27,463 INFO L226 Difference]: Without dead ends: 276 [2020-09-24 18:00:27,468 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:00:27,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-09-24 18:00:27,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 234. [2020-09-24 18:00:27,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-09-24 18:00:27,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 254 transitions. [2020-09-24 18:00:27,581 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 254 transitions. Word has length 153 [2020-09-24 18:00:27,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:00:27,585 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 254 transitions. [2020-09-24 18:00:27,586 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:00:27,586 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 254 transitions. [2020-09-24 18:00:27,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 18:00:27,596 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:00:27,596 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] [2020-09-24 18:00:27,597 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:00:27,598 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:00:27,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:00:27,598 INFO L82 PathProgramCache]: Analyzing trace with hash -1901557840, now seen corresponding path program 1 times [2020-09-24 18:00:27,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:00:27,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1833903335] [2020-09-24 18:00:27,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:00:27,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:27,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:27,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:29,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:32,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:32,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 18:00:32,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:00:32,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-09-24 18:00:32,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:32,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:00:32,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 18:00:32,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:00:32,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:33,050 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:00:33,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:00:33,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:33,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:33,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:33,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:00:33,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:33,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 18:00:33,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:33,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:33,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:33,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:33,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:33,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:00:33,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:33,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:33,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:33,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:33,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:33,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:00:33,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:33,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:33,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:33,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:33,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:33,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:00:33,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:33,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:33,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:33,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:33,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:33,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:00:33,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:33,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:33,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:33,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:33,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:33,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:00:33,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:33,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:33,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:33,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:33,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:33,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:00:33,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:33,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:33,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:33,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:33,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:33,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:00:33,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:33,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:33,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:33,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:33,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:33,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:00:33,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:33,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:33,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:33,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:33,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:33,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 18:00:33,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:33,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:33,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:33,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:33,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:33,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:00:33,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:33,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:33,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:00:33,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:33,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:33,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 18:00:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:33,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:33,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:33,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:33,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:33,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:00:33,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:33,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:33,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:00:33,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:33,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:33,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 18:00:33,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:33,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:33,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:33,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:33,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:33,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:00:33,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:33,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:33,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:00:33,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:33,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:33,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:00:33,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1833903335] [2020-09-24 18:00:33,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:00:33,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:00:33,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334182505] [2020-09-24 18:00:33,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:00:33,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:00:33,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:00:33,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:00:33,286 INFO L87 Difference]: Start difference. First operand 234 states and 254 transitions. Second operand 4 states. [2020-09-24 18:00:33,956 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:00:34,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:00:34,667 INFO L93 Difference]: Finished difference Result 343 states and 387 transitions. [2020-09-24 18:00:34,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 18:00:34,670 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 18:00:34,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:00:34,675 INFO L225 Difference]: With dead ends: 343 [2020-09-24 18:00:34,675 INFO L226 Difference]: Without dead ends: 259 [2020-09-24 18:00:34,677 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:00:34,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-09-24 18:00:34,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 224. [2020-09-24 18:00:34,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-09-24 18:00:34,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 241 transitions. [2020-09-24 18:00:34,718 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 241 transitions. Word has length 154 [2020-09-24 18:00:34,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:00:34,718 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 241 transitions. [2020-09-24 18:00:34,719 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:00:34,719 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 241 transitions. [2020-09-24 18:00:34,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 18:00:34,721 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:00:34,721 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] [2020-09-24 18:00:34,722 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:00:34,722 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:00:34,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:00:34,722 INFO L82 PathProgramCache]: Analyzing trace with hash 189375213, now seen corresponding path program 1 times [2020-09-24 18:00:34,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:00:34,723 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [862644339] [2020-09-24 18:00:34,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:00:34,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:34,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:35,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:37,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:37,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 18:00:37,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:00:37,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3011 [2020-09-24 18:00:37,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:37,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:00:37,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 18:00:37,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:00:37,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:38,073 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:00:38,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:00:38,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:38,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:38,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:38,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:00:38,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:38,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-24 18:00:38,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:38,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:38,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:38,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:38,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:38,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:00:38,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:38,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:38,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:38,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:38,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:38,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:00:38,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:38,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:38,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:38,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:38,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:38,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:00:38,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:38,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:38,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:38,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:38,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:38,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:00:38,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:38,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:38,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:38,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:38,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:38,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:00:38,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:38,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:38,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:38,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:38,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:38,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:00:38,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:38,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:38,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:38,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:38,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:38,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:00:38,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:38,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:38,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:38,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:38,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:38,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:00:38,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:38,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:38,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:38,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:38,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:38,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 18:00:38,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:38,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:38,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:38,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:00:38,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:38,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:00:38,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:38,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:00:38,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:38,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 18:00:38,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:38,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 18:00:38,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:38,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:38,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:38,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:38,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:38,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:00:38,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:38,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:38,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:00:38,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:38,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:38,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 18:00:38,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:38,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:38,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:38,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:38,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:38,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:00:38,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:38,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:38,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:00:38,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:38,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:38,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-24 18:00:38,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:38,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:38,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:38,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:38,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:38,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:00:38,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:38,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:38,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:00:38,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:38,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:38,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:00:38,373 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [862644339] [2020-09-24 18:00:38,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:00:38,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:00:38,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502482611] [2020-09-24 18:00:38,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:00:38,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:00:38,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:00:38,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:00:38,376 INFO L87 Difference]: Start difference. First operand 224 states and 241 transitions. Second operand 5 states. [2020-09-24 18:00:38,801 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:00:40,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:00:40,336 INFO L93 Difference]: Finished difference Result 518 states and 604 transitions. [2020-09-24 18:00:40,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:00:40,337 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-24 18:00:40,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:00:40,341 INFO L225 Difference]: With dead ends: 518 [2020-09-24 18:00:40,342 INFO L226 Difference]: Without dead ends: 404 [2020-09-24 18:00:40,343 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:00:40,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2020-09-24 18:00:40,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 328. [2020-09-24 18:00:40,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2020-09-24 18:00:40,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 363 transitions. [2020-09-24 18:00:40,406 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 363 transitions. Word has length 167 [2020-09-24 18:00:40,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:00:40,407 INFO L479 AbstractCegarLoop]: Abstraction has 328 states and 363 transitions. [2020-09-24 18:00:40,407 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:00:40,407 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 363 transitions. [2020-09-24 18:00:40,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-24 18:00:40,410 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:00:40,410 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:00:40,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:00:40,411 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:00:40,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:00:40,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1096724522, now seen corresponding path program 1 times [2020-09-24 18:00:40,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:00:40,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [887438285] [2020-09-24 18:00:40,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:00:40,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:40,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:42,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:42,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 18:00:42,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:42,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1647 [2020-09-24 18:00:42,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:42,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 18:00:42,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 18:00:42,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-24 18:00:42,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:42,478 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:00:42,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:00:42,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:42,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:42,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:42,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:00:42,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:42,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-09-24 18:00:42,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:42,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:00:42,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:42,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 18:00:42,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:42,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:00:42,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:42,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:42,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:42,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:42,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:42,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:00:42,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:42,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:00:42,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:42,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:00:42,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:42,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:00:42,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:42,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:42,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:42,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:42,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:42,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:00:42,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:42,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:00:42,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:42,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:00:42,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:42,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:00:42,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:42,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:42,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:42,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:42,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:42,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 18:00:42,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:42,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:00:42,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:42,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:00:42,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:42,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:00:42,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:42,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:42,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:42,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:42,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:42,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:00:42,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:42,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:00:42,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:42,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:00:42,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:42,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 18:00:42,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:42,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:42,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:42,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:00:42,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:42,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:00:42,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:42,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:00:42,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:42,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 18:00:42,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:42,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 18:00:42,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:42,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:42,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:42,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:42,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:42,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:00:42,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:42,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:00:42,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:42,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:00:42,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:42,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 18:00:42,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:42,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:42,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:42,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:42,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:42,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 18:00:42,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:42,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:00:42,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:42,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:00:42,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:42,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 18:00:42,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:42,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:43,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:43,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:43,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:43,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 18:00:43,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:43,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:43,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:00:43,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:43,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 18:00:43,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:00:43,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [887438285] [2020-09-24 18:00:43,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:00:43,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 18:00:43,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031888308] [2020-09-24 18:00:43,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 18:00:43,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:00:43,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 18:00:43,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 18:00:43,087 INFO L87 Difference]: Start difference. First operand 328 states and 363 transitions. Second operand 9 states. [2020-09-24 18:00:43,771 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:00:45,436 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:00:46,024 WARN L193 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-24 18:00:46,350 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:00:46,729 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:00:47,026 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:00:47,332 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:00:47,619 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:00:48,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:00:48,315 INFO L93 Difference]: Finished difference Result 846 states and 1021 transitions. [2020-09-24 18:00:48,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 18:00:48,316 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-24 18:00:48,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:00:48,322 INFO L225 Difference]: With dead ends: 846 [2020-09-24 18:00:48,323 INFO L226 Difference]: Without dead ends: 628 [2020-09-24 18:00:48,325 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 18:00:48,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2020-09-24 18:00:48,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 533. [2020-09-24 18:00:48,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 533 states. [2020-09-24 18:00:48,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 609 transitions. [2020-09-24 18:00:48,411 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 609 transitions. Word has length 172 [2020-09-24 18:00:48,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:00:48,412 INFO L479 AbstractCegarLoop]: Abstraction has 533 states and 609 transitions. [2020-09-24 18:00:48,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 18:00:48,412 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 609 transitions. [2020-09-24 18:00:48,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-24 18:00:48,415 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:00:48,415 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] [2020-09-24 18:00:48,415 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:00:48,416 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:00:48,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:00:48,416 INFO L82 PathProgramCache]: Analyzing trace with hash -1457531517, now seen corresponding path program 1 times [2020-09-24 18:00:48,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:00:48,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1376752714] [2020-09-24 18:00:48,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:00:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:48,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:48,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:49,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:51,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:53,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:53,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-09-24 18:00:53,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:00:53,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-09-24 18:00:53,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:53,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:00:53,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-24 18:00:53,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:00:53,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:53,756 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:00:53,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:00:53,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:53,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:53,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:53,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:00:53,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:53,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 18:00:53,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:53,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:53,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:53,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:53,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 17 [2020-09-24 18:00:53,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:00:53,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:53,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:53,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:53,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:53,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:53,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:00:53,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:53,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:53,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:53,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:53,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:53,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:00:53,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:53,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:53,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:53,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:53,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:53,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:00:53,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:53,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:53,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:53,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:53,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:53,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:00:53,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:53,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:53,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:53,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:53,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:53,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:00:53,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:53,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:53,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:53,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:53,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:53,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:00:53,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:53,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:53,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:53,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:53,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:53,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:00:53,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:53,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:53,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:53,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:53,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:53,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 18:00:53,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:53,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:53,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:53,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:00:53,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:53,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:00:53,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:53,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:00:53,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:53,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 18:00:53,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:54,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 18:00:54,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:54,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:54,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:54,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:00:54,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:54,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:00:54,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:54,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:54,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 18:00:54,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:54,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:54,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 18:00:54,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:54,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:54,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:54,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:54,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:54,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:00:54,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:54,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:54,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:00:54,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:54,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:54,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-24 18:00:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:54,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:54,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:54,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:54,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:54,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:00:54,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:54,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:54,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:00:54,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:54,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:54,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-24 18:00:54,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:54,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:54,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:54,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:54,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:54,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:00:54,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:54,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:54,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:00:54,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:54,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:54,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:00:54,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1376752714] [2020-09-24 18:00:54,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:00:54,088 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:00:54,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274008600] [2020-09-24 18:00:54,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:00:54,089 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:00:54,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:00:54,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:00:54,090 INFO L87 Difference]: Start difference. First operand 533 states and 609 transitions. Second operand 6 states. [2020-09-24 18:00:54,553 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:00:55,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:00:55,556 INFO L93 Difference]: Finished difference Result 917 states and 1095 transitions. [2020-09-24 18:00:55,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 18:00:55,558 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 177 [2020-09-24 18:00:55,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:00:55,562 INFO L225 Difference]: With dead ends: 917 [2020-09-24 18:00:55,562 INFO L226 Difference]: Without dead ends: 494 [2020-09-24 18:00:55,564 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:00:55,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2020-09-24 18:00:55,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 421. [2020-09-24 18:00:55,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-09-24 18:00:55,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 454 transitions. [2020-09-24 18:00:55,621 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 454 transitions. Word has length 177 [2020-09-24 18:00:55,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:00:55,622 INFO L479 AbstractCegarLoop]: Abstraction has 421 states and 454 transitions. [2020-09-24 18:00:55,622 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:00:55,622 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 454 transitions. [2020-09-24 18:00:55,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-24 18:00:55,625 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:00:55,625 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] [2020-09-24 18:00:55,625 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:00:55,626 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:00:55,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:00:55,626 INFO L82 PathProgramCache]: Analyzing trace with hash -1990325339, now seen corresponding path program 1 times [2020-09-24 18:00:55,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:00:55,627 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1822869077] [2020-09-24 18:00:55,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:00:55,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 18:00:55,684 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 18:00:55,684 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 18:00:55,689 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 18:00:55,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 06:00:55 BoogieIcfgContainer [2020-09-24 18:00:55,715 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 18:00:55,717 INFO L168 Benchmark]: Toolchain (without parser) took 38158.90 ms. Allocated memory was 143.7 MB in the beginning and 671.6 MB in the end (delta: 528.0 MB). Free memory was 102.2 MB in the beginning and 481.6 MB in the end (delta: -379.4 MB). Peak memory consumption was 148.5 MB. Max. memory is 7.1 GB. [2020-09-24 18:00:55,718 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 143.7 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 18:00:55,719 INFO L168 Benchmark]: CACSL2BoogieTranslator took 694.09 ms. Allocated memory was 143.7 MB in the beginning and 205.0 MB in the end (delta: 61.3 MB). Free memory was 101.6 MB in the beginning and 171.6 MB in the end (delta: -70.0 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2020-09-24 18:00:55,719 INFO L168 Benchmark]: Boogie Preprocessor took 86.06 ms. Allocated memory is still 205.0 MB. Free memory was 171.6 MB in the beginning and 167.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-09-24 18:00:55,720 INFO L168 Benchmark]: RCFGBuilder took 1180.37 ms. Allocated memory was 205.0 MB in the beginning and 234.4 MB in the end (delta: 29.4 MB). Free memory was 167.8 MB in the beginning and 174.4 MB in the end (delta: -6.6 MB). Peak memory consumption was 79.3 MB. Max. memory is 7.1 GB. [2020-09-24 18:00:55,721 INFO L168 Benchmark]: TraceAbstraction took 36190.31 ms. Allocated memory was 234.4 MB in the beginning and 671.6 MB in the end (delta: 437.3 MB). Free memory was 173.0 MB in the beginning and 481.6 MB in the end (delta: -308.6 MB). Peak memory consumption was 128.7 MB. Max. memory is 7.1 GB. [2020-09-24 18:00:55,725 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 143.7 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 694.09 ms. Allocated memory was 143.7 MB in the beginning and 205.0 MB in the end (delta: 61.3 MB). Free memory was 101.6 MB in the beginning and 171.6 MB in the end (delta: -70.0 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 86.06 ms. Allocated memory is still 205.0 MB. Free memory was 171.6 MB in the beginning and 167.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1180.37 ms. Allocated memory was 205.0 MB in the beginning and 234.4 MB in the end (delta: 29.4 MB). Free memory was 167.8 MB in the beginning and 174.4 MB in the end (delta: -6.6 MB). Peak memory consumption was 79.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 36190.31 ms. Allocated memory was 234.4 MB in the beginning and 671.6 MB in the end (delta: 437.3 MB). Free memory was 173.0 MB in the beginning and 481.6 MB in the end (delta: -308.6 MB). Peak memory consumption was 128.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 532]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L448] int waterLevel = 1; [L449] int methaneLevelCritical = 0; [L613] int pumpRunning = 0; [L614] int systemActive = 1; [L807] int cleanupTimeShifts = 4; [L880] int retValue_acc ; [L881] int tmp ; [L885] FCALL select_helpers() [L886] FCALL select_features() [L887] CALL, EXPR valid_product() [L798] int retValue_acc ; [L801] retValue_acc = 1 [L802] return (retValue_acc); [L887] RET, EXPR valid_product() [L887] tmp = valid_product() [L889] COND TRUE \read(tmp) [L891] FCALL setup() [L892] CALL runTest() [L874] CALL test() [L542] int splverifierCounter ; [L543] int tmp ; [L544] int tmp___0 ; [L545] int tmp___1 ; [L546] int tmp___2 ; [L549] splverifierCounter = 0 [L551] COND TRUE 1 [L553] COND TRUE splverifierCounter < 4 [L559] tmp = __VERIFIER_nondet_int() [L561] COND TRUE \read(tmp) [L563] CALL waterRise() [L466] COND TRUE waterLevel < 2 [L467] waterLevel = waterLevel + 1 [L563] RET waterRise() [L569] tmp___0 = __VERIFIER_nondet_int() [L571] COND FALSE !(\read(tmp___0)) [L579] tmp___2 = __VERIFIER_nondet_int() [L581] COND FALSE !(\read(tmp___2)) [L587] tmp___1 = __VERIFIER_nondet_int() [L589] COND TRUE \read(tmp___1) [L591] CALL stopSystem() [L749] COND FALSE !(\read(pumpRunning)) [L756] systemActive = 0 [L591] RET stopSystem() [L598] CALL timeShift() [L620] COND FALSE !(\read(pumpRunning)) [L627] COND FALSE !(\read(systemActive)) [L635] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L487] int retValue_acc ; [L490] retValue_acc = methaneLevelCritical [L491] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L519] int retValue_acc ; [L522] retValue_acc = waterLevel [L523] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L701] int retValue_acc ; [L704] retValue_acc = pumpRunning [L705] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L532] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 600 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 36.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 11.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1096 SDtfs, 1487 SDslu, 999 SDs, 0 SdLazy, 2149 SolverSat, 473 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=533occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 321 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 23.1s InterpolantComputationTime, 1000 NumberOfCodeBlocks, 1000 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 818 ConstructedInterpolants, 0 QuantifiedInterpolants, 314034 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...