/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:43:26,591 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:43:26,596 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:43:26,642 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:43:26,642 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:43:26,654 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:43:26,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:43:26,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:43:26,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:43:26,668 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:43:26,671 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:43:26,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:43:26,673 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:43:26,677 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:43:26,681 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:43:26,684 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:43:26,686 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:43:26,687 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:43:26,689 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:43:26,699 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:43:26,702 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:43:26,703 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:43:26,704 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:43:26,705 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:43:26,708 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:43:26,708 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:43:26,709 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:43:26,712 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:43:26,712 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:43:26,715 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:43:26,715 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:43:26,716 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:43:26,717 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:43:26,717 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:43:26,719 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:43:26,719 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:43:26,720 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:43:26,720 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:43:26,720 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:43:26,722 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:43:26,723 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:43:26,724 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 09:43:26,775 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:43:26,776 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:43:26,778 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:43:26,778 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:43:26,778 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:43:26,779 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:43:26,779 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:43:26,779 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:43:26,780 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:43:26,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:43:26,781 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:43:26,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:43:26,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:43:26,782 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:43:26,782 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:43:26,782 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:43:26,782 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:43:26,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:43:26,783 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:43:26,783 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:43:26,783 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:43:26,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:43:26,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:43:26,784 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:43:26,784 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:43:26,784 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:43:26,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:43:26,785 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:43:26,785 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:43:26,785 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-09-25 09:43:27,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:43:27,248 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:43:27,253 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:43:27,255 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:43:27,255 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:43:27,257 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product33.cil.c [2020-09-25 09:43:27,351 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/95968ba4b/834635804e71400bb3f0b1a5f4c44d48/FLAG4fbb8d745 [2020-09-25 09:43:27,947 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:43:27,948 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product33.cil.c [2020-09-25 09:43:27,963 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/95968ba4b/834635804e71400bb3f0b1a5f4c44d48/FLAG4fbb8d745 [2020-09-25 09:43:28,239 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/95968ba4b/834635804e71400bb3f0b1a5f4c44d48 [2020-09-25 09:43:28,254 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:43:28,260 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:43:28,264 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:43:28,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:43:28,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:43:28,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:43:28" (1/1) ... [2020-09-25 09:43:28,275 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11967da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:43:28, skipping insertion in model container [2020-09-25 09:43:28,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:43:28" (1/1) ... [2020-09-25 09:43:28,285 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:43:28,362 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:43:28,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:43:28,860 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:43:28,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:43:28,985 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:43:28,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:43:28 WrapperNode [2020-09-25 09:43:28,985 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:43:28,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:43:28,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:43:28,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:43:29,000 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:43:28" (1/1) ... [2020-09-25 09:43:29,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:43:28" (1/1) ... [2020-09-25 09:43:29,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:43:28" (1/1) ... [2020-09-25 09:43:29,023 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:43:28" (1/1) ... [2020-09-25 09:43:29,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:43:28" (1/1) ... [2020-09-25 09:43:29,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:43:28" (1/1) ... [2020-09-25 09:43:29,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:43:28" (1/1) ... [2020-09-25 09:43:29,080 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:43:29,080 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:43:29,081 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:43:29,081 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:43:29,082 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:43:28" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:43:29,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:43:29,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:43:29,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 09:43:29,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 09:43:29,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 09:43:29,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 09:43:29,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 09:43:29,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 09:43:29,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 09:43:29,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 09:43:29,167 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 09:43:29,167 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 09:43:29,167 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 09:43:29,167 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 09:43:29,168 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 09:43:29,169 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 09:43:29,169 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 09:43:29,169 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 09:43:29,169 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 09:43:29,169 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 09:43:29,170 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 09:43:29,170 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 09:43:29,170 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 09:43:29,171 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 09:43:29,171 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 09:43:29,171 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 09:43:29,171 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 09:43:29,172 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 09:43:29,172 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:43:29,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 09:43:29,172 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 09:43:29,172 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 09:43:29,172 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 09:43:29,172 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 09:43:29,172 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 09:43:29,172 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 09:43:29,173 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 09:43:29,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:43:29,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:43:29,173 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 09:43:29,173 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 09:43:29,174 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 09:43:29,174 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 09:43:29,174 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 09:43:29,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 09:43:29,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 09:43:29,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 09:43:29,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 09:43:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 09:43:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 09:43:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 09:43:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 09:43:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 09:43:29,176 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 09:43:29,176 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 09:43:29,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 09:43:29,176 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 09:43:29,176 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 09:43:29,176 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 09:43:29,177 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 09:43:29,177 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 09:43:29,177 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 09:43:29,177 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 09:43:29,177 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 09:43:29,177 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 09:43:29,177 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 09:43:29,178 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 09:43:29,178 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 09:43:29,178 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 09:43:29,178 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 09:43:29,178 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 09:43:29,178 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 09:43:29,179 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 09:43:29,179 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 09:43:29,179 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 09:43:29,179 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 09:43:29,179 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 09:43:29,179 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 09:43:29,180 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 09:43:29,180 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 09:43:29,180 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 09:43:29,180 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 09:43:29,180 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 09:43:29,180 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:43:29,181 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 09:43:29,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:43:29,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 09:43:29,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:43:30,267 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:43:30,267 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 09:43:30,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:43:30 BoogieIcfgContainer [2020-09-25 09:43:30,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:43:30,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:43:30,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:43:30,280 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:43:30,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:43:28" (1/3) ... [2020-09-25 09:43:30,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76758016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:43:30, skipping insertion in model container [2020-09-25 09:43:30,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:43:28" (2/3) ... [2020-09-25 09:43:30,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76758016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:43:30, skipping insertion in model container [2020-09-25 09:43:30,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:43:30" (3/3) ... [2020-09-25 09:43:30,284 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product33.cil.c [2020-09-25 09:43:30,295 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:43:30,307 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:43:30,329 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:43:30,356 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:43:30,357 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:43:30,357 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:43:30,357 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:43:30,357 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:43:30,357 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:43:30,357 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:43:30,358 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:43:30,383 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states. [2020-09-25 09:43:30,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 09:43:30,399 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:43:30,400 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] [2020-09-25 09:43:30,401 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:43:30,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:43:30,408 INFO L82 PathProgramCache]: Analyzing trace with hash -955195086, now seen corresponding path program 1 times [2020-09-25 09:43:30,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:43:30,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1604765212] [2020-09-25 09:43:30,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:43:30,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:43:30,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:31,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:31,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:32,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:33,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:35,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:43:35,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 09:43:35,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 09:43:35,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5121 [2020-09-25 09:43:35,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:43:35,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:43:35,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 09:43:35,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 09:43:35,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-09-25 09:43:35,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 09:43:36,560 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:43:36,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:43:36,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:43:36,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:36,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:43:36,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:43:36,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:43:36,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 312 [2020-09-25 09:43:36,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:43:36,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:43:36,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:43:36,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:43:36,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 09:43:36,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:43:37,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:43:37,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:43:37,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:37,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:43:37,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:43:37,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:43:37,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:43:37,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:43:37,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:43:37,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:43:37,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:43:37,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:43:37,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:43:37,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:43:37,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:43:37,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:37,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:43:37,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:43:37,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:43:37,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:43:37,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:43:37,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:43:37,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:43:37,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:43:37,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:43:37,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:43:37,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:43:37,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:43:37,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:37,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:43:37,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:43:37,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:43:37,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 09:43:37,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:43:37,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:43:37,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:43:37,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:43:37,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:43:37,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:43:37,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:43:37,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:43:37,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:37,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:43:37,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:43:37,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:43:37,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:43:37,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:43:37,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:43:37,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:43:37,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:43:37,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:43:37,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:43:37,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 09:43:37,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:43:37,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:37,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:43:37,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:43:37,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:43:37,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:43:37,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:43:37,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:43:37,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:43:37,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:43:37,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:43:37,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:43:37,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 09:43:37,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:43:37,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:37,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:43:37,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:43:37,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:43:37,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:43:37,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:43:37,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:43:37,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:43:37,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:43:37,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:43:37,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:43:37,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:43:37,204 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1604765212] [2020-09-25 09:43:37,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:43:37,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 09:43:37,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948312981] [2020-09-25 09:43:37,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:43:37,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:43:37,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:43:37,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:43:37,238 INFO L87 Difference]: Start difference. First operand 284 states. Second operand 8 states. [2020-09-25 09:43:37,838 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:43:39,128 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:43:39,469 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:43:39,825 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:43:40,167 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:43:40,501 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:43:41,214 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:43:41,537 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:43:41,943 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:43:42,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:43:42,965 INFO L93 Difference]: Finished difference Result 524 states and 656 transitions. [2020-09-25 09:43:42,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 09:43:42,967 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 09:43:42,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:43:42,989 INFO L225 Difference]: With dead ends: 524 [2020-09-25 09:43:42,989 INFO L226 Difference]: Without dead ends: 357 [2020-09-25 09:43:42,995 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 09:43:43,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2020-09-25 09:43:43,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 315. [2020-09-25 09:43:43,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2020-09-25 09:43:43,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 361 transitions. [2020-09-25 09:43:43,119 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 361 transitions. Word has length 142 [2020-09-25 09:43:43,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:43:43,120 INFO L479 AbstractCegarLoop]: Abstraction has 315 states and 361 transitions. [2020-09-25 09:43:43,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:43:43,120 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 361 transitions. [2020-09-25 09:43:43,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-25 09:43:43,127 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:43:43,128 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:43:43,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:43:43,128 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:43:43,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:43:43,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1923951786, now seen corresponding path program 1 times [2020-09-25 09:43:43,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:43:43,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [757563503] [2020-09-25 09:43:43,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:43:43,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:43:43,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:43,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:43,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:43,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:46,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:46,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:48,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:43:48,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 245 [2020-09-25 09:43:48,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 09:43:48,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-25 09:43:48,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:43:48,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:43:48,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 09:43:48,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 09:43:48,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-09-25 09:43:48,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:43:48,576 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:43:48,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:43:48,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:43:48,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:48,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:43:48,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:43:48,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:43:48,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-09-25 09:43:48,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:43:48,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:43:48,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:43:48,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:43:48,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 09:43:48,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:43:48,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:43:48,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:43:48,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:48,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:43:48,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:43:48,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:43:48,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:43:48,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:43:48,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:43:48,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:43:48,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:43:48,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:43:48,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:43:48,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:43:48,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:43:48,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:48,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:43:48,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:43:48,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:43:48,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:43:48,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:43:48,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:43:48,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:43:48,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:43:48,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:43:48,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:43:48,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:43:48,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:43:48,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:48,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:43:48,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:43:48,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:43:48,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:43:48,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:43:48,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:43:48,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:43:48,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:43:48,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:43:48,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:43:48,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:43:48,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:43:48,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:48,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:43:48,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:43:48,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:43:48,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:43:48,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:43:48,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:43:48,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:43:48,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:43:48,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:43:48,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:43:48,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-25 09:43:48,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:43:48,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:48,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:49,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:43:49,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 09:43:49,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:43:49,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 09:43:49,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:43:49,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:43:49,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:43:49,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:43:49,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 09:43:49,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:43:49,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:43:49,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:43:49,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:49,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:43:49,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 09:43:49,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:43:49,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:43:49,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:43:49,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:43:49,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:43:49,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:43:49,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:43:49,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 09:43:49,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:43:49,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:43:49,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:49,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:43:49,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:43:49,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:43:49,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:43:49,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:43:49,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:43:49,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:43:49,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:43:49,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:43:49,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:43:49,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 09:43:49,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:43:49,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:49,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:49,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:43:49,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 09:43:49,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:43:49,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 09:43:49,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:43:49,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:43:49,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:43:49,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:43:49,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 09:43:49,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:43:49,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:43:49,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:43:49,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:49,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:49,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:43:49,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 09:43:49,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:43:49,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 09:43:49,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:43:49,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:43:49,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:43:49,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 09:43:49,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:43:49,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:43:49,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:43:49,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:43:49,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:49,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:43:49,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:43:49,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:43:49,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 09:43:49,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:43:49,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:43:49,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:43:49,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:43:49,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:43:49,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:43:49,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 09:43:49,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:43:49,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:49,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:43:49,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:43:49,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:43:49,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:43:49,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:43:49,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:43:49,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:43:49,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:43:49,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:43:49,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:43:49,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 09:43:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:43:49,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:49,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:43:49,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:43:49,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:43:49,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 09:43:49,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:43:49,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:43:49,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:43:49,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:43:49,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:43:49,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:43:49,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-25 09:43:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:43:49,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:49,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:43:49,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:43:49,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:43:49,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:43:49,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:43:49,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:43:49,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:43:49,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:43:49,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:43:49,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:43:49,507 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 09:43:49,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [757563503] [2020-09-25 09:43:49,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:43:49,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 09:43:49,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431032964] [2020-09-25 09:43:49,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 09:43:49,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:43:49,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 09:43:49,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-25 09:43:49,515 INFO L87 Difference]: Start difference. First operand 315 states and 361 transitions. Second operand 14 states. [2020-09-25 09:43:50,018 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:43:51,050 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:43:51,467 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:43:51,813 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:43:52,203 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:43:52,553 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:43:52,907 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 09:43:53,243 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:43:53,650 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:43:54,041 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:43:54,382 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:43:54,799 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:43:55,135 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:43:55,598 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:43:55,956 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:43:56,286 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:43:56,639 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:43:57,052 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:43:57,401 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:43:59,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:43:59,217 INFO L93 Difference]: Finished difference Result 894 states and 1214 transitions. [2020-09-25 09:43:59,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-25 09:43:59,219 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 200 [2020-09-25 09:43:59,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:43:59,238 INFO L225 Difference]: With dead ends: 894 [2020-09-25 09:43:59,238 INFO L226 Difference]: Without dead ends: 643 [2020-09-25 09:43:59,248 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=224, Invalid=966, Unknown=0, NotChecked=0, Total=1190 [2020-09-25 09:43:59,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2020-09-25 09:43:59,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 485. [2020-09-25 09:43:59,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 485 states. [2020-09-25 09:43:59,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 561 transitions. [2020-09-25 09:43:59,345 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 561 transitions. Word has length 200 [2020-09-25 09:43:59,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:43:59,346 INFO L479 AbstractCegarLoop]: Abstraction has 485 states and 561 transitions. [2020-09-25 09:43:59,346 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 09:43:59,347 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 561 transitions. [2020-09-25 09:43:59,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-09-25 09:43:59,356 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:43:59,358 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:43:59,358 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:43:59,359 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:43:59,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:43:59,359 INFO L82 PathProgramCache]: Analyzing trace with hash -627718261, now seen corresponding path program 1 times [2020-09-25 09:43:59,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:43:59,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1231240899] [2020-09-25 09:43:59,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:43:59,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:43:59,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:59,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:59,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:43:59,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:00,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:01,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:04,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:04,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 262 [2020-09-25 09:44:04,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 09:44:04,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 09:44:04,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:04,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:04,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:04,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 09:44:04,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 09:44:04,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:44:04,776 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:44:04,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:44:04,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:04,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:05,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:05,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:44:05,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:05,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-09-25 09:44:05,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:05,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:05,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:05,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:05,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 09:44:05,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:05,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:44:05,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:05,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:05,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:05,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:44:05,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:05,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:44:05,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:05,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:05,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:05,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:05,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:44:05,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:05,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:44:05,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:05,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:05,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:05,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:44:05,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:05,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:44:05,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:05,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:05,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:05,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:05,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:44:05,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:05,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:44:05,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:05,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:05,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:05,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:44:05,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:05,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:44:05,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:05,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:05,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:05,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:05,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:44:05,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:05,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:44:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:05,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:05,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:05,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:44:05,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:05,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:44:05,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:05,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:05,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:05,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:05,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:44:05,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:05,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 09:44:05,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:05,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:05,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:05,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:44:05,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:05,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:44:05,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:05,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:05,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:05,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:05,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:44:05,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:05,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 09:44:05,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:05,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:05,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:05,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 09:44:05,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:05,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:44:05,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:05,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:05,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:05,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 09:44:05,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 09:44:05,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:05,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:44:05,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:05,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:05,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:05,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 09:44:05,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:05,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:44:05,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:05,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:05,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:05,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:05,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 09:44:05,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:05,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:44:05,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:05,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:05,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:05,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:44:05,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:05,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:44:05,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:05,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:05,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:44:05,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:05,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:44:05,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:05,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 09:44:05,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:05,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:05,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:05,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:05,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 09:44:05,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:44:05,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-25 09:44:05,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:05,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:05,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:44:05,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 09:44:05,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:44:05,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:05,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:44:05,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:05,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:05,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:05,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 09:44:05,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:05,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 09:44:05,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:05,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:05,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:44:05,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:05,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 09:44:05,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:05,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:44:05,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:05,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:05,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:05,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:44:05,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:05,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:44:05,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:05,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:05,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:44:05,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:05,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:44:05,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:05,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 09:44:05,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:05,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:05,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:05,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:44:05,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:05,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:44:05,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:05,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:05,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:44:05,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 09:44:05,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:44:05,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:05,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-09-25 09:44:05,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:05,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:05,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:05,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:44:05,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:05,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:44:05,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:05,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:05,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:44:05,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:44:05,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:44:05,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:05,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-09-25 09:44:05,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:05,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:05,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:05,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:44:05,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:05,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:44:05,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:05,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:05,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:44:05,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:44:05,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:44:05,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:05,678 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 09:44:05,679 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1231240899] [2020-09-25 09:44:05,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:44:05,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 09:44:05,680 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581489043] [2020-09-25 09:44:05,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 09:44:05,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:44:05,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 09:44:05,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-09-25 09:44:05,683 INFO L87 Difference]: Start difference. First operand 485 states and 561 transitions. Second operand 13 states. [2020-09-25 09:44:06,212 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:44:07,302 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:44:07,632 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 09:44:07,971 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 09:44:08,296 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:44:08,633 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:44:08,941 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:44:10,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:44:10,554 INFO L93 Difference]: Finished difference Result 1083 states and 1387 transitions. [2020-09-25 09:44:10,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 09:44:10,555 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 215 [2020-09-25 09:44:10,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:44:10,567 INFO L225 Difference]: With dead ends: 1083 [2020-09-25 09:44:10,568 INFO L226 Difference]: Without dead ends: 708 [2020-09-25 09:44:10,571 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-09-25 09:44:10,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2020-09-25 09:44:10,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 501. [2020-09-25 09:44:10,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 501 states. [2020-09-25 09:44:10,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 571 transitions. [2020-09-25 09:44:10,672 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 571 transitions. Word has length 215 [2020-09-25 09:44:10,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:44:10,674 INFO L479 AbstractCegarLoop]: Abstraction has 501 states and 571 transitions. [2020-09-25 09:44:10,674 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 09:44:10,674 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 571 transitions. [2020-09-25 09:44:10,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 09:44:10,679 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:44:10,680 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:44:10,680 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:44:10,680 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:44:10,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:44:10,681 INFO L82 PathProgramCache]: Analyzing trace with hash -325395952, now seen corresponding path program 1 times [2020-09-25 09:44:10,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:44:10,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [72164153] [2020-09-25 09:44:10,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:44:10,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:10,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:11,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:11,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-25 09:44:11,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:11,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1235 [2020-09-25 09:44:11,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:11,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:11,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 09:44:11,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 09:44:11,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-25 09:44:11,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:44:12,297 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:44:12,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:44:12,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:12,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:12,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:12,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:44:12,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:12,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-09-25 09:44:12,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:12,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:12,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:12,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:12,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 09:44:12,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:44:12,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:44:12,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:12,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:12,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:12,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:44:12,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:12,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:44:12,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:12,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:12,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:12,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:12,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:44:12,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:44:12,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:44:12,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:12,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:12,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:12,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:44:12,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:12,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:44:12,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:12,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:12,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:12,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:12,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:44:12,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:12,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:44:12,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:12,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:12,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:12,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:44:12,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:12,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:44:12,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:12,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:12,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:12,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:12,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:44:12,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:12,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:44:12,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:12,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:12,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:12,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:44:12,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:12,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:44:12,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:12,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:12,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:12,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:12,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:44:12,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:44:12,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 09:44:12,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:12,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:12,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:12,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:44:12,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:12,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:44:12,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:12,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:12,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:12,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:12,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:44:12,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 09:44:12,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 09:44:12,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:12,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:12,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:12,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 09:44:12,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:12,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 09:44:12,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:12,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:12,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:12,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 09:44:12,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 09:44:12,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:12,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:44:12,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:12,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:12,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:12,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 09:44:12,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:12,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 09:44:12,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:12,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:12,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:12,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:12,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:44:12,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:12,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:44:12,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:12,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:12,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:12,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:44:12,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:12,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:44:12,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:12,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:12,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:12,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:12,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 09:44:12,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:12,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 09:44:12,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:12,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:12,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:12,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:44:12,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:12,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:44:12,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:12,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:12,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:44:12,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:44:12,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 09:44:12,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:12,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 09:44:12,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:12,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:12,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:12,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:44:12,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:12,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:44:12,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:12,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:12,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:44:12,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:44:12,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:44:12,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:12,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 09:44:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:44:12,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:44:12,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:44:12,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:44:12,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:44:12,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:44:12,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:44:12,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:44:12,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:44:12,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:44:12,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:44:12,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:44:12,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:44:12,815 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [72164153] [2020-09-25 09:44:12,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:44:12,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 09:44:12,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139195237] [2020-09-25 09:44:12,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 09:44:12,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:44:12,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 09:44:12,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:44:12,819 INFO L87 Difference]: Start difference. First operand 501 states and 571 transitions. Second operand 7 states. [2020-09-25 09:44:13,335 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:44:14,222 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:44:17,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:44:17,473 INFO L93 Difference]: Finished difference Result 1728 states and 2291 transitions. [2020-09-25 09:44:17,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 09:44:17,474 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 190 [2020-09-25 09:44:17,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:44:17,486 INFO L225 Difference]: With dead ends: 1728 [2020-09-25 09:44:17,486 INFO L226 Difference]: Without dead ends: 1315 [2020-09-25 09:44:17,491 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-09-25 09:44:17,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1315 states. [2020-09-25 09:44:17,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1315 to 971. [2020-09-25 09:44:17,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 971 states. [2020-09-25 09:44:17,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 971 states to 971 states and 1158 transitions. [2020-09-25 09:44:17,653 INFO L78 Accepts]: Start accepts. Automaton has 971 states and 1158 transitions. Word has length 190 [2020-09-25 09:44:17,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:44:17,654 INFO L479 AbstractCegarLoop]: Abstraction has 971 states and 1158 transitions. [2020-09-25 09:44:17,654 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 09:44:17,654 INFO L276 IsEmpty]: Start isEmpty. Operand 971 states and 1158 transitions. [2020-09-25 09:44:17,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-25 09:44:17,658 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:44:17,658 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:44:17,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 09:44:17,659 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:44:17,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:44:17,659 INFO L82 PathProgramCache]: Analyzing trace with hash -527704718, now seen corresponding path program 1 times [2020-09-25 09:44:17,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:44:17,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [500683002] [2020-09-25 09:44:17,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:44:17,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 09:44:17,726 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 09:44:17,727 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 09:44:17,733 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 09:44:17,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 09:44:17 BoogieIcfgContainer [2020-09-25 09:44:17,775 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 09:44:17,779 INFO L168 Benchmark]: Toolchain (without parser) took 49521.45 ms. Allocated memory was 141.0 MB in the beginning and 695.2 MB in the end (delta: 554.2 MB). Free memory was 103.6 MB in the beginning and 248.6 MB in the end (delta: -145.0 MB). Peak memory consumption was 409.2 MB. Max. memory is 7.1 GB. [2020-09-25 09:44:17,785 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 09:44:17,786 INFO L168 Benchmark]: CACSL2BoogieTranslator took 721.64 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 103.0 MB in the beginning and 174.2 MB in the end (delta: -71.2 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. [2020-09-25 09:44:17,787 INFO L168 Benchmark]: Boogie Preprocessor took 93.89 ms. Allocated memory is still 204.5 MB. Free memory was 174.2 MB in the beginning and 170.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-25 09:44:17,788 INFO L168 Benchmark]: RCFGBuilder took 1194.46 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 170.2 MB in the beginning and 178.2 MB in the end (delta: -8.0 MB). Peak memory consumption was 82.4 MB. Max. memory is 7.1 GB. [2020-09-25 09:44:17,796 INFO L168 Benchmark]: TraceAbstraction took 47499.16 ms. Allocated memory was 235.4 MB in the beginning and 695.2 MB in the end (delta: 459.8 MB). Free memory was 176.8 MB in the beginning and 248.6 MB in the end (delta: -71.8 MB). Peak memory consumption was 388.0 MB. Max. memory is 7.1 GB. [2020-09-25 09:44:17,803 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 721.64 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 103.0 MB in the beginning and 174.2 MB in the end (delta: -71.2 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 93.89 ms. Allocated memory is still 204.5 MB. Free memory was 174.2 MB in the beginning and 170.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1194.46 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 170.2 MB in the beginning and 178.2 MB in the end (delta: -8.0 MB). Peak memory consumption was 82.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 47499.16 ms. Allocated memory was 235.4 MB in the beginning and 695.2 MB in the end (delta: 459.8 MB). Free memory was 176.8 MB in the beginning and 248.6 MB in the end (delta: -71.8 MB). Peak memory consumption was 388.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 410]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L424] int pumpRunning = 0; [L425] int systemActive = 1; [L683] int cleanupTimeShifts = 4; [L806] int waterLevel = 1; [L807] int methaneLevelCritical = 0; [L756] int retValue_acc ; [L757] int tmp ; [L761] FCALL select_helpers() [L762] FCALL select_features() [L763] CALL, EXPR valid_product() [L674] int retValue_acc ; [L677] retValue_acc = 1 [L678] return (retValue_acc); [L763] RET, EXPR valid_product() [L763] tmp = valid_product() [L765] COND TRUE \read(tmp) [L767] FCALL setup() [L768] CALL runTest() [L750] CALL test() [L581] int splverifierCounter ; [L582] int tmp ; [L583] int tmp___0 ; [L584] int tmp___1 ; [L585] int tmp___2 ; [L588] splverifierCounter = 0 [L590] COND TRUE 1 [L592] COND TRUE splverifierCounter < 4 [L598] tmp = __VERIFIER_nondet_int() [L600] COND TRUE \read(tmp) [L602] CALL waterRise() [L824] COND TRUE waterLevel < 2 [L825] waterLevel = waterLevel + 1 [L602] RET waterRise() [L608] tmp___0 = __VERIFIER_nondet_int() [L610] COND TRUE \read(tmp___0) [L612] CALL changeMethaneLevel() [L836] COND FALSE !(\read(methaneLevelCritical)) [L839] methaneLevelCritical = 1 [L612] RET changeMethaneLevel() [L618] tmp___2 = __VERIFIER_nondet_int() [L620] COND TRUE \read(tmp___2) [L633] CALL timeShift() [L432] COND FALSE !(\read(pumpRunning)) [L439] COND TRUE \read(systemActive) [L441] CALL processEnvironment() [L461] int tmp ; [L464] COND TRUE ! pumpRunning [L466] CALL, EXPR isHighWaterLevel() [L558] int retValue_acc ; [L559] int tmp ; [L560] int tmp___0 ; [L564] CALL, EXPR isHighWaterSensorDry() [L886] int retValue_acc ; [L889] COND FALSE !(waterLevel < 2) [L893] retValue_acc = 0 [L894] return (retValue_acc); [L564] RET, EXPR isHighWaterSensorDry() [L564] tmp = isHighWaterSensorDry() [L566] COND FALSE !(\read(tmp)) [L569] tmp___0 = 1 [L571] retValue_acc = tmp___0 [L572] return (retValue_acc); [L466] RET, EXPR isHighWaterLevel() [L466] tmp = isHighWaterLevel() [L468] COND TRUE \read(tmp) [L470] CALL activatePump() [L489] pumpRunning = 1 [L470] RET activatePump() [L441] RET processEnvironment() [L447] CALL __utac_acc__Specification1_spec__1() [L780] int tmp ; [L781] int tmp___0 ; [L785] CALL, EXPR isMethaneLevelCritical() [L845] int retValue_acc ; [L848] retValue_acc = methaneLevelCritical [L849] return (retValue_acc); [L785] RET, EXPR isMethaneLevelCritical() [L785] tmp = isMethaneLevelCritical() [L787] COND TRUE \read(tmp) [L789] CALL, EXPR isPumpRunning() [L513] int retValue_acc ; [L516] retValue_acc = pumpRunning [L517] return (retValue_acc); [L789] RET, EXPR isPumpRunning() [L789] tmp___0 = isPumpRunning() [L791] COND TRUE \read(tmp___0) [L793] CALL __automaton_fail() [L410] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 606 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 47.3s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 25.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 972 SDtfs, 2193 SDslu, 2711 SDs, 0 SdLazy, 5329 SolverSat, 789 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 206 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 13.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=971occurred 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: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 751 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 20.8s InterpolantComputationTime, 942 NumberOfCodeBlocks, 942 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 743 ConstructedInterpolants, 0 QuantifiedInterpolants, 367988 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 31/32 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...