/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 SequenceOfStatements --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=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 12:36:40,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 12:36:40,452 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 12:36:40,483 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 12:36:40,484 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 12:36:40,485 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 12:36:40,486 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 12:36:40,488 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 12:36:40,490 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 12:36:40,491 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 12:36:40,492 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 12:36:40,493 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 12:36:40,493 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 12:36:40,494 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 12:36:40,495 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 12:36:40,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 12:36:40,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 12:36:40,498 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 12:36:40,499 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 12:36:40,501 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 12:36:40,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 12:36:40,504 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 12:36:40,505 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 12:36:40,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 12:36:40,508 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 12:36:40,508 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 12:36:40,508 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 12:36:40,509 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 12:36:40,510 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 12:36:40,511 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 12:36:40,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 12:36:40,512 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 12:36:40,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 12:36:40,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 12:36:40,514 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 12:36:40,514 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 12:36:40,515 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 12:36:40,515 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 12:36:40,515 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 12:36:40,516 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 12:36:40,517 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 12:36:40,518 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 [2020-10-13 12:36:40,540 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 12:36:40,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 12:36:40,541 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 12:36:40,541 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 12:36:40,542 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 12:36:40,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 12:36:40,542 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 12:36:40,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 12:36:40,543 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 12:36:40,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 12:36:40,543 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 12:36:40,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 12:36:40,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 12:36:40,544 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 12:36:40,544 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 12:36:40,544 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 12:36:40,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 12:36:40,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 12:36:40,545 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 12:36:40,545 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 12:36:40,545 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 12:36:40,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 12:36:40,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 12:36:40,546 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 12:36:40,546 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 12:36:40,546 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 12:36:40,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 12:36:40,547 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 12:36:40,547 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 12:36:40,547 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 -> SequenceOfStatements 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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 12:36:40,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 12:36:40,899 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 12:36:40,911 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 12:36:40,912 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 12:36:40,913 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 12:36:40,914 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c [2020-10-13 12:36:40,976 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fad2927b7/d8909eae1ca84563be26237e99b474aa/FLAG305ad5f18 [2020-10-13 12:36:41,478 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 12:36:41,479 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c [2020-10-13 12:36:41,503 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fad2927b7/d8909eae1ca84563be26237e99b474aa/FLAG305ad5f18 [2020-10-13 12:36:41,710 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fad2927b7/d8909eae1ca84563be26237e99b474aa [2020-10-13 12:36:41,718 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 12:36:41,720 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 12:36:41,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 12:36:41,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 12:36:41,726 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 12:36:41,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:36:41" (1/1) ... [2020-10-13 12:36:41,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7aa772f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:41, skipping insertion in model container [2020-10-13 12:36:41,730 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:36:41" (1/1) ... [2020-10-13 12:36:41,739 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 12:36:41,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 12:36:42,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:36:42,208 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 12:36:42,311 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:36:42,347 INFO L208 MainTranslator]: Completed translation [2020-10-13 12:36:42,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:42 WrapperNode [2020-10-13 12:36:42,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 12:36:42,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 12:36:42,348 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 12:36:42,349 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 12:36:42,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:42" (1/1) ... [2020-10-13 12:36:42,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:42" (1/1) ... [2020-10-13 12:36:42,384 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:42" (1/1) ... [2020-10-13 12:36:42,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:42" (1/1) ... [2020-10-13 12:36:42,418 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:42" (1/1) ... [2020-10-13 12:36:42,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:42" (1/1) ... [2020-10-13 12:36:42,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:42" (1/1) ... [2020-10-13 12:36:42,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 12:36:42,443 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 12:36:42,443 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 12:36:42,443 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 12:36:42,444 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:42" (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 [2020-10-13 12:36:42,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 12:36:42,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 12:36:42,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-13 12:36:42,512 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-13 12:36:42,513 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-13 12:36:42,513 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-13 12:36:42,513 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-13 12:36:42,513 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 12:36:42,513 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-13 12:36:42,513 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-13 12:36:42,514 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-13 12:36:42,514 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-13 12:36:42,514 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-13 12:36:42,514 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-13 12:36:42,514 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-13 12:36:42,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-13 12:36:42,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-10-13 12:36:42,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-10-13 12:36:42,517 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-13 12:36:42,517 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-13 12:36:42,517 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-13 12:36:42,517 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-13 12:36:42,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-13 12:36:42,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-13 12:36:42,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-13 12:36:42,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-13 12:36:42,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-13 12:36:42,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-13 12:36:42,518 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-13 12:36:42,518 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-13 12:36:42,519 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-13 12:36:42,519 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-13 12:36:42,519 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-13 12:36:42,520 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-13 12:36:42,520 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-13 12:36:42,520 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-13 12:36:42,521 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-13 12:36:42,521 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-13 12:36:42,521 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-13 12:36:42,521 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 12:36:42,521 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 12:36:42,521 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-13 12:36:42,522 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-13 12:36:42,522 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-13 12:36:42,522 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-13 12:36:42,522 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-13 12:36:42,522 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-13 12:36:42,522 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-13 12:36:42,523 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-13 12:36:42,523 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-10-13 12:36:42,523 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-13 12:36:42,523 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-13 12:36:42,523 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-13 12:36:42,524 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-13 12:36:42,524 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-13 12:36:42,524 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 12:36:42,524 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-13 12:36:42,524 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-13 12:36:42,525 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-13 12:36:42,525 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-13 12:36:42,525 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-13 12:36:42,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 12:36:42,525 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-13 12:36:42,526 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-13 12:36:42,526 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-10-13 12:36:42,526 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-13 12:36:42,526 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-13 12:36:42,526 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 12:36:42,526 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 12:36:42,527 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-13 12:36:42,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 12:36:42,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 12:36:42,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 12:36:42,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 12:36:42,529 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-13 12:36:42,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 12:36:42,530 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-13 12:36:42,530 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-13 12:36:42,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 12:36:42,530 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-13 12:36:42,530 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-13 12:36:42,530 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-13 12:36:42,530 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-13 12:36:42,532 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-13 12:36:42,532 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-13 12:36:42,532 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-13 12:36:42,532 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-13 12:36:42,532 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-13 12:36:42,532 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-13 12:36:42,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 12:36:42,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 12:36:42,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 12:36:43,619 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 12:36:43,620 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-13 12:36:43,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:36:43 BoogieIcfgContainer [2020-10-13 12:36:43,625 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 12:36:43,627 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 12:36:43,627 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 12:36:43,630 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 12:36:43,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:36:41" (1/3) ... [2020-10-13 12:36:43,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e4e6d1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:36:43, skipping insertion in model container [2020-10-13 12:36:43,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:42" (2/3) ... [2020-10-13 12:36:43,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e4e6d1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:36:43, skipping insertion in model container [2020-10-13 12:36:43,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:36:43" (3/3) ... [2020-10-13 12:36:43,634 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product34.cil.c [2020-10-13 12:36:43,645 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 12:36:43,653 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 12:36:43,667 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 12:36:43,690 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 12:36:43,690 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 12:36:43,690 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 12:36:43,690 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 12:36:43,691 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 12:36:43,691 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 12:36:43,691 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 12:36:43,691 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 12:36:43,713 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states. [2020-10-13 12:36:43,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-13 12:36:43,724 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:36:43,725 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:36:43,725 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:36:43,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:36:43,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1720198034, now seen corresponding path program 1 times [2020-10-13 12:36:43,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:36:43,742 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1262942513] [2020-10-13 12:36:43,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:36:44,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:36:44,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:36:44,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:36:45,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:36:45,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:36:46,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:36:49,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:36:49,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-13 12:36:49,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 12:36:49,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-13 12:36:49,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:36:49,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:36:49,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-13 12:36:49,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:36:49,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 12:36:49,518 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:36:49,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:36:49,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:36:49,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:36:49,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:36:49,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:36:49,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:36:49,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 12:36:49,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:36:49,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:36:49,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:36:49,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:36:49,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:36:49,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:36:49,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:36:49,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:36:49,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:36:49,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:36:49,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:36:49,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:36:49,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:36:49,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:36:49,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:36:49,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:36:49,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:36:49,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:36:49,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:36:49,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:36:49,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:36:49,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:36:49,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:36:49,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:36:49,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:36:49,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:36:49,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:36:49,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:36:49,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:36:49,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:36:49,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:36:49,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:36:49,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:36:49,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:36:49,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:36:49,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:36:49,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:36:49,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:36:49,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:36:49,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:36:49,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:36:49,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:36:49,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:36:49,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:36:49,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:36:49,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:36:49,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:36:49,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:36:49,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:36:49,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:36:49,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:36:49,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:36:49,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:36:49,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 12:36:49,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:36:49,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:36:49,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:36:49,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:36:49,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:36:49,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:36:49,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:36:49,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:36:49,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:36:49,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:36:49,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:36:49,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 12:36:49,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:36:49,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:36:49,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:36:49,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:36:49,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:36:49,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:36:49,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:36:49,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:36:49,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:36:49,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:36:49,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:36:49,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 12:36:49,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:36:49,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:36:49,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:36:49,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:36:49,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:36:49,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:36:49,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:36:49,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:36:49,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:36:49,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:36:49,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:36:49,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:36:49,679 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1262942513] [2020-10-13 12:36:49,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:36:49,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 12:36:49,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721655883] [2020-10-13 12:36:49,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 12:36:49,690 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:36:49,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 12:36:49,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-13 12:36:49,708 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 4 states. [2020-10-13 12:36:50,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:36:50,892 INFO L93 Difference]: Finished difference Result 258 states and 340 transitions. [2020-10-13 12:36:50,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-13 12:36:50,894 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-10-13 12:36:50,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:36:50,910 INFO L225 Difference]: With dead ends: 258 [2020-10-13 12:36:50,910 INFO L226 Difference]: Without dead ends: 145 [2020-10-13 12:36:50,915 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-13 12:36:50,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-10-13 12:36:51,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 114. [2020-10-13 12:36:51,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-13 12:36:51,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 133 transitions. [2020-10-13 12:36:51,013 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 133 transitions. Word has length 51 [2020-10-13 12:36:51,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:36:51,013 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 133 transitions. [2020-10-13 12:36:51,013 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 12:36:51,014 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 133 transitions. [2020-10-13 12:36:51,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-13 12:36:51,017 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:36:51,017 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] [2020-10-13 12:36:51,017 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 12:36:51,018 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:36:51,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:36:51,018 INFO L82 PathProgramCache]: Analyzing trace with hash 220132220, now seen corresponding path program 1 times [2020-10-13 12:36:51,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:36:51,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1631780437] [2020-10-13 12:36:51,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:36:51,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:36:51,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:36:51,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:36:51,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:36:53,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:36:53,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:36:55,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:36:56,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:36:56,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 12:36:56,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 12:36:56,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-13 12:36:56,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:36:56,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:36:56,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-13 12:36:56,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 12:36:56,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:36:56,375 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:36:56,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:36:56,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:36:56,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:36:56,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:36:56,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:36:56,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:36:56,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 12:36:56,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:36:56,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:36:56,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:36:56,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:36:56,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:36:56,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:36:56,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:36:56,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:36:56,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:36:56,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:36:56,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:36:56,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:36:56,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:36:56,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:36:56,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:36:56,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:36:56,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:36:56,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:36:56,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:36:56,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:36:56,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:36:56,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:36:56,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:36:56,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:36:56,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:36:56,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:36:56,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:36:56,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:36:56,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:36:56,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:36:56,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:36:56,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:36:56,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:36:56,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:36:56,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:36:56,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:36:56,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:36:56,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:36:56,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:36:56,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:36:56,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:36:56,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:36:56,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:36:56,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:36:56,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:36:56,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:36:56,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:36:56,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:36:56,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:36:56,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:36:56,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:36:56,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:36:56,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:36:56,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 12:36:56,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:36:56,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:36:56,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:36:56,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:36:56,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:36:56,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:36:56,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:36:56,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:36:56,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:36:56,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:36:56,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:36:56,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-13 12:36:56,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:36:56,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:36:56,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:36:56,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:36:56,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:36:56,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:36:56,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:36:56,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:36:56,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:36:56,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:36:56,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:36:56,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 12:36:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:36:56,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:36:56,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:36:56,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:36:56,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:36:56,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:36:56,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:36:56,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:36:56,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:36:56,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:36:56,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:36:56,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:36:56,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1631780437] [2020-10-13 12:36:56,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:36:56,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 12:36:56,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674080538] [2020-10-13 12:36:56,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 12:36:56,491 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:36:56,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 12:36:56,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 12:36:56,492 INFO L87 Difference]: Start difference. First operand 114 states and 133 transitions. Second operand 5 states. [2020-10-13 12:36:56,999 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 12:36:57,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:36:57,856 INFO L93 Difference]: Finished difference Result 199 states and 247 transitions. [2020-10-13 12:36:57,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 12:36:57,856 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2020-10-13 12:36:57,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:36:57,859 INFO L225 Difference]: With dead ends: 199 [2020-10-13 12:36:57,860 INFO L226 Difference]: Without dead ends: 135 [2020-10-13 12:36:57,861 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-13 12:36:57,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-10-13 12:36:57,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 105. [2020-10-13 12:36:57,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-10-13 12:36:57,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 121 transitions. [2020-10-13 12:36:57,905 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 121 transitions. Word has length 52 [2020-10-13 12:36:57,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:36:57,905 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 121 transitions. [2020-10-13 12:36:57,906 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 12:36:57,906 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 121 transitions. [2020-10-13 12:36:57,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-13 12:36:57,908 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:36:57,908 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] [2020-10-13 12:36:57,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 12:36:57,908 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:36:57,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:36:57,909 INFO L82 PathProgramCache]: Analyzing trace with hash 889380391, now seen corresponding path program 1 times [2020-10-13 12:36:57,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:36:57,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1891559298] [2020-10-13 12:36:57,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:36:57,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:36:57,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:36:58,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:36:58,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:36:58,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:02,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:02,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:02,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 12:37:02,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 12:37:02,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-13 12:37:02,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:02,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:37:02,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-13 12:37:02,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 12:37:02,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:03,225 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:37:03,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:37:03,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:03,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:03,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:03,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:03,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:03,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 12:37:03,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:03,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:03,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:03,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:03,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:03,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:37:03,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:03,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:03,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:03,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:37:03,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:03,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:03,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:03,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:03,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:03,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:03,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:03,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:37:03,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:03,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:03,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:03,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:37:03,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:03,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:37:03,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:03,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:03,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:03,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:03,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:03,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:37:03,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:03,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:03,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:03,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:03,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:03,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:03,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:03,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:03,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:03,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:03,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:03,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:37:03,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:03,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:03,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:03,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:37:03,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:03,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:03,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:03,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:03,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:03,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:03,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:03,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 12:37:03,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:03,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:03,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:03,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:03,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:03,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:03,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:03,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:03,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:03,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:03,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:03,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-13 12:37:03,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:03,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:03,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:03,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:03,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:03,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:37:03,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:03,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:37:03,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:03,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:37:03,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:03,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-13 12:37:03,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:03,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:03,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:03,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:03,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:03,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:37:03,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:03,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:37:03,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:03,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:37:03,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:03,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:37:03,361 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1891559298] [2020-10-13 12:37:03,361 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:37:03,361 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 12:37:03,362 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731488276] [2020-10-13 12:37:03,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 12:37:03,362 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:37:03,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 12:37:03,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-13 12:37:03,365 INFO L87 Difference]: Start difference. First operand 105 states and 121 transitions. Second operand 8 states. [2020-10-13 12:37:03,815 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-13 12:37:04,795 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-10-13 12:37:05,111 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-13 12:37:05,355 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-13 12:37:05,882 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 12:37:06,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:37:06,587 INFO L93 Difference]: Finished difference Result 274 states and 357 transitions. [2020-10-13 12:37:06,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 12:37:06,587 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-10-13 12:37:06,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:37:06,595 INFO L225 Difference]: With dead ends: 274 [2020-10-13 12:37:06,595 INFO L226 Difference]: Without dead ends: 197 [2020-10-13 12:37:06,597 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2020-10-13 12:37:06,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-10-13 12:37:06,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 162. [2020-10-13 12:37:06,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-13 12:37:06,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 191 transitions. [2020-10-13 12:37:06,680 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 191 transitions. Word has length 57 [2020-10-13 12:37:06,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:37:06,682 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 191 transitions. [2020-10-13 12:37:06,682 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 12:37:06,683 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 191 transitions. [2020-10-13 12:37:06,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-13 12:37:06,690 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:37:06,690 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] [2020-10-13 12:37:06,691 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 12:37:06,691 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:37:06,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:37:06,691 INFO L82 PathProgramCache]: Analyzing trace with hash -1370999512, now seen corresponding path program 1 times [2020-10-13 12:37:06,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:37:06,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [22694205] [2020-10-13 12:37:06,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:37:06,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:06,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:06,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:07,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:11,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:11,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 12:37:11,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:37:11,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-13 12:37:11,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:11,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:37:11,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-13 12:37:11,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:37:11,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:11,973 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:37:11,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:37:11,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:11,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:12,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:12,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:12,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:12,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 12:37:12,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:12,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:12,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:12,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:12,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:12,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:37:12,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:12,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:12,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:12,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:37:12,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:12,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:37:12,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:12,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:12,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:12,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:12,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:12,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:37:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:12,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:12,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:12,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:37:12,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:12,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:37:12,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:12,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:12,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:12,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:12,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:12,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:37:12,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:12,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:12,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:12,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:12,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:12,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:37:12,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:12,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:12,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:12,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:12,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:12,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:37:12,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:12,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:12,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:12,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:37:12,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:12,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:37:12,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:12,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:12,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:12,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:12,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:12,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 12:37:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:12,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:12,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:12,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:12,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:12,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:12,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:12,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:12,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:12,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:12,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:12,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 12:37:12,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:12,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:12,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:12,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 12:37:12,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:12,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 12:37:12,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:12,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:37:12,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 12:37:12,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:37:12,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:12,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:37:12,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:12,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:12,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:12,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:37:12,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:12,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 12:37:12,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:12,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:37:12,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 12:37:12,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:37:12,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:12,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:37:12,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:12,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:12,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:12,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:37:12,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:12,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:37:12,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:12,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 12:37:12,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:12,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:37:12,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:37:12,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:37:12,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:12,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:12,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:12,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:12,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:12,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:12,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:12,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:12,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:37:12,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:12,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:12,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 12:37:12,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:12,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:12,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:12,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:12,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:12,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:12,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:12,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:12,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:37:12,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:12,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:12,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 12:37:12,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:12,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:12,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:12,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:12,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:12,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:37:12,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:12,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:12,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:37:12,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:12,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:12,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:37:12,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [22694205] [2020-10-13 12:37:12,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:37:12,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 12:37:12,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116786529] [2020-10-13 12:37:12,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 12:37:12,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:37:12,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 12:37:12,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-13 12:37:12,159 INFO L87 Difference]: Start difference. First operand 162 states and 191 transitions. Second operand 8 states. [2020-10-13 12:37:12,959 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-13 12:37:13,230 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-13 12:37:13,475 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-13 12:37:14,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:37:14,067 INFO L93 Difference]: Finished difference Result 347 states and 457 transitions. [2020-10-13 12:37:14,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 12:37:14,068 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2020-10-13 12:37:14,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:37:14,071 INFO L225 Difference]: With dead ends: 347 [2020-10-13 12:37:14,071 INFO L226 Difference]: Without dead ends: 213 [2020-10-13 12:37:14,073 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-13 12:37:14,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2020-10-13 12:37:14,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 166. [2020-10-13 12:37:14,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-10-13 12:37:14,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 195 transitions. [2020-10-13 12:37:14,140 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 195 transitions. Word has length 80 [2020-10-13 12:37:14,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:37:14,141 INFO L479 AbstractCegarLoop]: Abstraction has 166 states and 195 transitions. [2020-10-13 12:37:14,141 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 12:37:14,141 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 195 transitions. [2020-10-13 12:37:14,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-13 12:37:14,144 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:37:14,145 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] [2020-10-13 12:37:14,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 12:37:14,145 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:37:14,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:37:14,146 INFO L82 PathProgramCache]: Analyzing trace with hash 1537764390, now seen corresponding path program 1 times [2020-10-13 12:37:14,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:37:14,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1642635732] [2020-10-13 12:37:14,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:37:14,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:14,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:14,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:15,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:19,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:19,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 12:37:19,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:37:19,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-13 12:37:19,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:19,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:37:19,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-13 12:37:19,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 12:37:19,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:19,407 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:37:19,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:37:19,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:19,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:19,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:19,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:19,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:19,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 12:37:19,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:19,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:19,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:19,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:19,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:19,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:37:19,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:19,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:19,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:19,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:37:19,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:19,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:19,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:19,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:19,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:19,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:19,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:19,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:37:19,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:19,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:19,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:19,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:37:19,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:19,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:37:19,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:19,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:19,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:19,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:19,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:19,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:37:19,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:19,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:19,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:19,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:19,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:19,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:37:19,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:19,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:19,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:19,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:19,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:19,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:37:19,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:19,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:19,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:19,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:37:19,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:19,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:37:19,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:19,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:19,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:19,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:19,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:19,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 12:37:19,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:19,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:19,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:19,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:19,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:19,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:37:19,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:19,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:19,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:19,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:19,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:19,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 12:37:19,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:19,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:19,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:19,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 12:37:19,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:19,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 12:37:19,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:19,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:37:19,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 12:37:19,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 12:37:19,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:37:19,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:37:19,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:19,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:19,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:19,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:37:19,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:19,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 12:37:19,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:19,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:37:19,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:19,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 12:37:19,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:19,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:37:19,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:19,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:19,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:19,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:37:19,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:19,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:19,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:19,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:19,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:19,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:19,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:19,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:37:19,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:19,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:19,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:19,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:19,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:19,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:37:19,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:19,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:19,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:37:19,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:19,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:19,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 12:37:19,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:19,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:19,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:19,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:19,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:19,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:19,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:19,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:19,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:37:19,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:19,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:19,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 12:37:19,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:19,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:19,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:19,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:19,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:19,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:37:19,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:19,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:19,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:37:19,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:19,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:19,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:37:19,680 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1642635732] [2020-10-13 12:37:19,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:37:19,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 12:37:19,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128891524] [2020-10-13 12:37:19,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 12:37:19,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:37:19,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 12:37:19,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-13 12:37:19,683 INFO L87 Difference]: Start difference. First operand 166 states and 195 transitions. Second operand 9 states. [2020-10-13 12:37:20,716 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-13 12:37:20,982 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-13 12:37:21,263 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-13 12:37:21,522 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 12:37:22,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:37:22,078 INFO L93 Difference]: Finished difference Result 353 states and 453 transitions. [2020-10-13 12:37:22,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 12:37:22,079 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 80 [2020-10-13 12:37:22,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:37:22,082 INFO L225 Difference]: With dead ends: 353 [2020-10-13 12:37:22,083 INFO L226 Difference]: Without dead ends: 215 [2020-10-13 12:37:22,084 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-10-13 12:37:22,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2020-10-13 12:37:22,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 171. [2020-10-13 12:37:22,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-10-13 12:37:22,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 200 transitions. [2020-10-13 12:37:22,121 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 200 transitions. Word has length 80 [2020-10-13 12:37:22,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:37:22,122 INFO L479 AbstractCegarLoop]: Abstraction has 171 states and 200 transitions. [2020-10-13 12:37:22,122 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 12:37:22,122 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 200 transitions. [2020-10-13 12:37:22,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-13 12:37:22,123 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:37:22,123 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] [2020-10-13 12:37:22,124 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 12:37:22,124 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:37:22,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:37:22,124 INFO L82 PathProgramCache]: Analyzing trace with hash 740290857, now seen corresponding path program 1 times [2020-10-13 12:37:22,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:37:22,125 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1429756709] [2020-10-13 12:37:22,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:37:22,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:22,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:22,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:23,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:25,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:25,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 12:37:25,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:37:25,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2980 [2020-10-13 12:37:25,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:25,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:37:25,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:37:25,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 12:37:25,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:25,348 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:37:25,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:37:25,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:25,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:25,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:25,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:25,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:25,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 12:37:25,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:25,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:37:25,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:25,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 12:37:25,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:25,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:37:25,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:25,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:25,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:25,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:37:25,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:25,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:25,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:25,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:37:25,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:25,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:37:25,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:25,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:37:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:25,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:25,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:25,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:37:25,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:25,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:25,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:25,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:37:25,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:25,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:37:25,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:25,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:37:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:25,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:25,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:25,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:25,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:25,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:25,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:25,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:37:25,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:25,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:37:25,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:25,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:37:25,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:25,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:25,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:25,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:37:25,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:25,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:25,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:25,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:37:25,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:25,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:37:25,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:25,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 12:37:25,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:25,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:25,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:25,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:25,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:25,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:25,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:25,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:37:25,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:25,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:37:25,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:25,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 12:37:25,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:25,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:25,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:25,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 12:37:25,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:25,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:37:25,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:25,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:37:25,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 12:37:25,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 12:37:25,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:25,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:37:25,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:25,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:25,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:25,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:37:25,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:25,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:37:25,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:25,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:37:25,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:25,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:37:25,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:25,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:37:25,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:25,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:25,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:25,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:37:25,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:25,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:25,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:25,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:37:25,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:25,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 12:37:25,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:25,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:37:25,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:25,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:25,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:25,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:25,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:25,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:25,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:25,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:37:25,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:25,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:37:25,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:25,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 12:37:25,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:25,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:25,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:25,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:25,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:25,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:37:25,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:25,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:25,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:37:25,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:25,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:25,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 12:37:25,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:25,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:25,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:25,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:25,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:25,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:25,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:25,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:25,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:37:25,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:25,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:25,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:37:25,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1429756709] [2020-10-13 12:37:25,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:37:25,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 12:37:25,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283866379] [2020-10-13 12:37:25,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 12:37:25,525 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:37:25,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 12:37:25,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-13 12:37:25,526 INFO L87 Difference]: Start difference. First operand 171 states and 200 transitions. Second operand 7 states. [2020-10-13 12:37:25,821 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-13 12:37:26,364 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-13 12:37:27,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:37:27,954 INFO L93 Difference]: Finished difference Result 531 states and 697 transitions. [2020-10-13 12:37:27,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 12:37:27,955 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 80 [2020-10-13 12:37:27,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:37:27,960 INFO L225 Difference]: With dead ends: 531 [2020-10-13 12:37:27,960 INFO L226 Difference]: Without dead ends: 388 [2020-10-13 12:37:27,961 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-13 12:37:27,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2020-10-13 12:37:28,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 341. [2020-10-13 12:37:28,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2020-10-13 12:37:28,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 410 transitions. [2020-10-13 12:37:28,026 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 410 transitions. Word has length 80 [2020-10-13 12:37:28,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:37:28,027 INFO L479 AbstractCegarLoop]: Abstraction has 341 states and 410 transitions. [2020-10-13 12:37:28,027 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 12:37:28,027 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 410 transitions. [2020-10-13 12:37:28,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-13 12:37:28,029 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:37:28,029 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] [2020-10-13 12:37:28,030 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 12:37:28,030 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:37:28,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:37:28,030 INFO L82 PathProgramCache]: Analyzing trace with hash 1900532227, now seen corresponding path program 1 times [2020-10-13 12:37:28,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:37:28,031 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [857711732] [2020-10-13 12:37:28,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:37:28,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:28,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:28,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:29,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:29,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-13 12:37:29,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:37:29,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1469 [2020-10-13 12:37:29,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:29,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 12:37:29,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-13 12:37:29,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 12:37:29,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:29,864 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:37:29,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:37:29,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:29,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:29,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:29,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:29,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:29,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 12:37:29,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:29,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:29,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:29,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:29,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:29,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:37:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:29,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:29,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:29,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:37:29,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:29,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:37:29,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:29,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:29,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:29,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:29,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:29,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:37:29,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:29,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:29,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:29,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:37:29,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:29,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:37:29,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:29,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:29,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:29,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:29,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:29,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:37:29,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:29,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:29,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:29,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:29,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:29,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:29,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:29,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:29,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:29,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:29,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:29,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:37:29,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:29,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:29,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:29,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:37:29,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:29,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:37:29,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:29,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:29,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:29,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:29,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:29,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 12:37:29,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:29,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:29,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:29,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:29,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:29,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:29,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:29,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:37:29,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:29,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 12:37:29,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:29,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 12:37:29,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:29,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:29,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:29,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:29,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:29,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:37:29,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:29,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:37:29,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:29,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:37:29,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:29,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 12:37:29,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:29,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:29,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:29,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 12:37:29,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:29,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 12:37:29,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:29,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:37:29,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:29,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 12:37:29,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:30,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:37:30,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:30,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:30,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:30,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:37:30,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:30,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:37:30,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:30,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:30,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:30,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:30,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:30,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:37:30,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:30,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:30,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:30,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:37:30,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:30,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:30,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:30,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:30,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:30,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:30,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:30,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:37:30,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:30,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:30,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:30,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:30,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:30,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:37:30,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:30,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:30,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:30,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:30,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:30,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-13 12:37:30,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:30,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:30,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:30,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:30,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:30,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:30,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:30,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:37:30,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:30,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:37:30,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:30,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-13 12:37:30,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:30,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:30,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:30,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:30,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:30,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:30,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:30,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:37:30,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:30,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:37:30,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:30,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:37:30,047 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [857711732] [2020-10-13 12:37:30,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:37:30,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 12:37:30,048 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033508750] [2020-10-13 12:37:30,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 12:37:30,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:37:30,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 12:37:30,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 12:37:30,055 INFO L87 Difference]: Start difference. First operand 341 states and 410 transitions. Second operand 7 states. [2020-10-13 12:37:30,392 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 12:37:32,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:37:32,840 INFO L93 Difference]: Finished difference Result 662 states and 892 transitions. [2020-10-13 12:37:32,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 12:37:32,840 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 84 [2020-10-13 12:37:32,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:37:32,845 INFO L225 Difference]: With dead ends: 662 [2020-10-13 12:37:32,846 INFO L226 Difference]: Without dead ends: 659 [2020-10-13 12:37:32,847 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2020-10-13 12:37:32,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2020-10-13 12:37:32,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 573. [2020-10-13 12:37:32,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 573 states. [2020-10-13 12:37:32,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 720 transitions. [2020-10-13 12:37:32,982 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 720 transitions. Word has length 84 [2020-10-13 12:37:32,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:37:32,983 INFO L479 AbstractCegarLoop]: Abstraction has 573 states and 720 transitions. [2020-10-13 12:37:32,983 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 12:37:32,983 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 720 transitions. [2020-10-13 12:37:32,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-13 12:37:32,985 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:37:32,986 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 12:37:32,986 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 12:37:32,986 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:37:32,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:37:32,986 INFO L82 PathProgramCache]: Analyzing trace with hash 566615807, now seen corresponding path program 1 times [2020-10-13 12:37:32,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:37:32,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1930516946] [2020-10-13 12:37:32,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:37:33,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:33,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:33,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:33,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:33,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:34,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:34,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-13 12:37:34,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 12:37:34,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1518 [2020-10-13 12:37:34,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:34,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:37:34,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-13 12:37:34,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 12:37:34,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:34,815 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:37:34,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:37:34,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:34,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:34,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:34,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:34,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:34,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 12:37:34,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:34,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:34,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:34,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:34,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:37:34,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:37:34,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:34,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:34,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:34,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:37:34,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:34,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:37:34,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:34,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:34,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:34,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:34,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:34,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:37:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:34,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:34,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:34,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:37:34,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:34,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:37:34,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:34,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:34,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:34,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:34,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:34,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:37:34,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:34,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:34,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:34,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:34,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:34,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:37:34,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:34,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:34,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:34,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:34,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:34,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:37:34,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:34,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:34,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:34,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:37:34,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:34,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:37:34,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:34,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:34,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:34,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:34,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:34,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 12:37:34,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:34,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:34,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:34,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:34,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:34,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:34,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:34,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:34,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:34,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:34,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:37:34,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 12:37:34,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:34,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:34,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:34,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:34,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:34,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:34,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:34,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:34,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:34,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:34,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:37:34,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 12:37:34,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:34,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:34,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:34,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-13 12:37:34,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:34,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 12:37:34,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:34,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:37:34,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:34,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 12:37:34,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:37:34,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:37:34,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:34,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:34,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:34,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 12:37:34,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:34,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 12:37:34,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:34,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:37:34,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:34,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 12:37:34,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:34,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:37:34,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:34,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:35,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:35,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:37:35,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:35,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 12:37:35,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:35,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:35,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:35,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:35,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:35,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:37:35,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:35,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:35,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:35,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:37:35,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:35,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:35,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:35,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:35,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:35,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:35,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:37:35,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:37:35,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:35,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:35,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:35,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:35,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:35,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:35,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:35,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:35,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:35,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:35,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:37:35,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-13 12:37:35,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:35,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:35,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:35,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 12:37:35,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:35,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:37:35,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:35,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:37:35,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:35,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 12:37:35,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:37:35,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:37:35,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:35,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:35,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:35,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:35,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:35,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:35,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:35,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:35,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:35,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:35,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:37:35,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:37:35,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:35,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:35,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:35,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:35,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:35,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:35,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:35,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:35,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:35,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:35,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:35,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 12:37:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:35,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:35,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:35,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:35,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:35,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:35,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:35,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:37:35,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:35,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:37:35,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:35,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-13 12:37:35,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:35,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:35,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:35,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:35,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:35,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:35,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:35,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:35,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:37:35,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:35,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:35,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-13 12:37:35,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:35,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:35,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:35,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:35,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:35,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:37:35,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:35,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:35,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:37:35,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:35,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:35,080 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-13 12:37:35,081 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1930516946] [2020-10-13 12:37:35,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:37:35,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 12:37:35,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855797334] [2020-10-13 12:37:35,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 12:37:35,083 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:37:35,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 12:37:35,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-13 12:37:35,084 INFO L87 Difference]: Start difference. First operand 573 states and 720 transitions. Second operand 8 states. [2020-10-13 12:37:35,391 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 12:37:36,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:37:36,463 INFO L93 Difference]: Finished difference Result 1162 states and 1512 transitions. [2020-10-13 12:37:36,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 12:37:36,464 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 119 [2020-10-13 12:37:36,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:37:36,470 INFO L225 Difference]: With dead ends: 1162 [2020-10-13 12:37:36,470 INFO L226 Difference]: Without dead ends: 617 [2020-10-13 12:37:36,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2020-10-13 12:37:36,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2020-10-13 12:37:36,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 573. [2020-10-13 12:37:36,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 573 states. [2020-10-13 12:37:36,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 711 transitions. [2020-10-13 12:37:36,605 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 711 transitions. Word has length 119 [2020-10-13 12:37:36,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:37:36,606 INFO L479 AbstractCegarLoop]: Abstraction has 573 states and 711 transitions. [2020-10-13 12:37:36,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 12:37:36,606 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 711 transitions. [2020-10-13 12:37:36,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-13 12:37:36,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:37:36,608 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 12:37:36,609 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 12:37:36,609 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:37:36,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:37:36,609 INFO L82 PathProgramCache]: Analyzing trace with hash -429350402, now seen corresponding path program 1 times [2020-10-13 12:37:36,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:37:36,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [122136829] [2020-10-13 12:37:36,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:37:36,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:36,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:36,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:37,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:37,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-13 12:37:37,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:37:37,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1134 [2020-10-13 12:37:37,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:37,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-13 12:37:37,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:37:37,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-13 12:37:37,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:38,014 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:37:38,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:37:38,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:38,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:38,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:38,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:38,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:38,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 12:37:38,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:38,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:37:38,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:38,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 12:37:38,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:38,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:37:38,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:38,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:38,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:38,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:37:38,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:38,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:38,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:38,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:37:38,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:38,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:37:38,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:38,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:37:38,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:38,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:38,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:38,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:37:38,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:38,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:38,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:38,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:37:38,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:38,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:37:38,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:38,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:37:38,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:38,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:38,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:38,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:38,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:38,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:38,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:38,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:37:38,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:38,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:37:38,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:38,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:37:38,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:38,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:38,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:38,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:37:38,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:38,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:38,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:38,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:37:38,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:38,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:37:38,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:38,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 12:37:38,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:38,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:38,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:38,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:38,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:38,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:38,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:38,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:37:38,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:38,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:37:38,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:38,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 12:37:38,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:38,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:38,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:38,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:38,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:38,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:38,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:38,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:37:38,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:38,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:37:38,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:38,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 12:37:38,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:38,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:38,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:38,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-13 12:37:38,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:38,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 12:37:38,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:38,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:37:38,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-13 12:37:38,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-13 12:37:38,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:38,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:37:38,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:38,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:38,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:38,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 12:37:38,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:38,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:37:38,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:38,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:38,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:38,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:38,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:38,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:37:38,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:38,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:38,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:38,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:37:38,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:38,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:38,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:38,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:38,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:38,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:38,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:38,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:37:38,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:38,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:38,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:38,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:37:38,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:38,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:37:38,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:38,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:38,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:38,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:38,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:38,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:37:38,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:38,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:38,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:38,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:38,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:38,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:37:38,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:38,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:38,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:38,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:38,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:38,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-13 12:37:38,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:38,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:38,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:38,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-13 12:37:38,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:38,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:37:38,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:38,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:37:38,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:38,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 12:37:38,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:38,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:37:38,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:38,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:38,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:38,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:38,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:38,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:37:38,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:38,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 12:37:38,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:38,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:37:38,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:38,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 12:37:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:38,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:38,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:38,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:38,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:38,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:37:38,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:38,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:37:38,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:38,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:37:38,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:38,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-13 12:37:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:38,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:38,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:38,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:38,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:38,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:38,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:38,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:38,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:37:38,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:38,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:38,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-13 12:37:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:38,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:38,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:38,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 12:37:38,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:38,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:37:38,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:38,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:38,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 12:37:38,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:38,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:38,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:37:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:38,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:38,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:38,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:37:38,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:38,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:37:38,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:38,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:38,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:37:38,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:38,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:38,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-13 12:37:38,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:38,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:38,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:38,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:38,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:38,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:37:38,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:38,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:38,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:37:38,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:38,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:38,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 12:37:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:37:38,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:37:38,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:37:38,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:37:38,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:37:38,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:37:38,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:37:38,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:37:38,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:37:38,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:37:38,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:37:38,327 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 22 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-13 12:37:38,328 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [122136829] [2020-10-13 12:37:38,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:37:38,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 12:37:38,328 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216510363] [2020-10-13 12:37:38,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 12:37:38,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:37:38,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 12:37:38,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-13 12:37:38,330 INFO L87 Difference]: Start difference. First operand 573 states and 711 transitions. Second operand 12 states. [2020-10-13 12:37:38,699 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-13 12:37:39,442 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 12:37:40,232 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-13 12:37:40,522 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-13 12:37:41,013 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 192 [2020-10-13 12:37:41,249 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-13 12:37:41,576 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-13 12:37:41,862 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-13 12:37:43,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:37:43,240 INFO L93 Difference]: Finished difference Result 1630 states and 2165 transitions. [2020-10-13 12:37:43,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-13 12:37:43,241 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 127 [2020-10-13 12:37:43,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:37:43,253 INFO L225 Difference]: With dead ends: 1630 [2020-10-13 12:37:43,253 INFO L226 Difference]: Without dead ends: 1085 [2020-10-13 12:37:43,258 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=272, Invalid=988, Unknown=0, NotChecked=0, Total=1260 [2020-10-13 12:37:43,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2020-10-13 12:37:43,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 1016. [2020-10-13 12:37:43,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1016 states. [2020-10-13 12:37:43,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1239 transitions. [2020-10-13 12:37:43,534 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1239 transitions. Word has length 127 [2020-10-13 12:37:43,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:37:43,535 INFO L479 AbstractCegarLoop]: Abstraction has 1016 states and 1239 transitions. [2020-10-13 12:37:43,535 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 12:37:43,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1239 transitions. [2020-10-13 12:37:43,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-13 12:37:43,542 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:37:43,542 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 12:37:43,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 12:37:43,543 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:37:43,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:37:43,543 INFO L82 PathProgramCache]: Analyzing trace with hash -1128183326, now seen corresponding path program 1 times [2020-10-13 12:37:43,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:37:43,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1439803136] [2020-10-13 12:37:43,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:37:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 12:37:43,594 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 12:37:43,595 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 12:37:43,599 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 12:37:43,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:37:43 BoogieIcfgContainer [2020-10-13 12:37:43,653 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 12:37:43,655 INFO L168 Benchmark]: Toolchain (without parser) took 61935.03 ms. Allocated memory was 147.3 MB in the beginning and 909.6 MB in the end (delta: 762.3 MB). Free memory was 102.8 MB in the beginning and 420.4 MB in the end (delta: -317.6 MB). Peak memory consumption was 444.7 MB. Max. memory is 7.1 GB. [2020-10-13 12:37:43,658 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 12:37:43,661 INFO L168 Benchmark]: CACSL2BoogieTranslator took 626.23 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 102.6 MB in the beginning and 172.0 MB in the end (delta: -69.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-10-13 12:37:43,667 INFO L168 Benchmark]: Boogie Preprocessor took 94.28 ms. Allocated memory is still 203.9 MB. Free memory was 172.0 MB in the beginning and 167.5 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2020-10-13 12:37:43,668 INFO L168 Benchmark]: RCFGBuilder took 1182.31 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 167.5 MB in the beginning and 194.8 MB in the end (delta: -27.3 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. [2020-10-13 12:37:43,669 INFO L168 Benchmark]: TraceAbstraction took 60026.51 ms. Allocated memory was 235.4 MB in the beginning and 909.6 MB in the end (delta: 674.2 MB). Free memory was 194.8 MB in the beginning and 420.4 MB in the end (delta: -225.6 MB). Peak memory consumption was 448.7 MB. Max. memory is 7.1 GB. [2020-10-13 12:37:43,677 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 626.23 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 102.6 MB in the beginning and 172.0 MB in the end (delta: -69.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 94.28 ms. Allocated memory is still 203.9 MB. Free memory was 172.0 MB in the beginning and 167.5 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1182.31 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 167.5 MB in the beginning and 194.8 MB in the end (delta: -27.3 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 60026.51 ms. Allocated memory was 235.4 MB in the beginning and 909.6 MB in the end (delta: 674.2 MB). Free memory was 194.8 MB in the beginning and 420.4 MB in the end (delta: -225.6 MB). Peak memory consumption was 448.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 249]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L151] int waterLevel = 1; [L152] int methaneLevelCritical = 0; [L255] int methAndRunningLastTime ; [L498] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L765] int pumpRunning = 0; [L766] int systemActive = 1; [L123] int retValue_acc ; [L124] int tmp ; [L128] FCALL select_helpers() [L129] FCALL select_features() [L130] CALL, EXPR valid_product() [L320] int retValue_acc ; [L323] retValue_acc = 1 [L324] return (retValue_acc); [L130] RET, EXPR valid_product() [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L134] FCALL setup() [L135] CALL runTest() [L113] CALL __utac_acc__Specification2_spec__1() [L260] methAndRunningLastTime = 0 [L113] RET __utac_acc__Specification2_spec__1() [L114] CALL test() [L697] int splverifierCounter ; [L698] int tmp ; [L699] int tmp___0 ; [L700] int tmp___1 ; [L701] int tmp___2 ; [L704] splverifierCounter = 0 [L706] COND TRUE 1 [L708] COND TRUE splverifierCounter < 4 [L714] tmp = __VERIFIER_nondet_int() [L716] COND TRUE \read(tmp) [L718] CALL waterRise() [L169] COND TRUE waterLevel < 2 [L170] waterLevel = waterLevel + 1 [L718] RET waterRise() [L724] tmp___0 = __VERIFIER_nondet_int() [L726] COND TRUE \read(tmp___0) [L728] CALL changeMethaneLevel() [L181] COND FALSE !(\read(methaneLevelCritical)) [L184] methaneLevelCritical = 1 [L728] RET changeMethaneLevel() [L734] tmp___2 = __VERIFIER_nondet_int() [L736] COND FALSE !(\read(tmp___2)) [L742] tmp___1 = __VERIFIER_nondet_int() [L744] COND TRUE \read(tmp___1) [L751] CALL timeShift() [L772] COND FALSE !(\read(pumpRunning)) [L779] COND TRUE \read(systemActive) [L781] CALL processEnvironment() [L801] int tmp ; [L804] COND TRUE ! pumpRunning [L806] CALL, EXPR isHighWaterLevel() [L898] int retValue_acc ; [L899] int tmp ; [L900] int tmp___0 ; [L904] CALL, EXPR isHighWaterSensorDry() [L231] int retValue_acc ; [L234] COND FALSE !(waterLevel < 2) [L238] retValue_acc = 0 [L239] return (retValue_acc); [L904] RET, EXPR isHighWaterSensorDry() [L904] tmp = isHighWaterSensorDry() [L906] COND FALSE !(\read(tmp)) [L909] tmp___0 = 1 [L911] retValue_acc = tmp___0 [L912] return (retValue_acc); [L806] RET, EXPR isHighWaterLevel() [L806] tmp = isHighWaterLevel() [L808] COND TRUE \read(tmp) [L810] CALL activatePump() [L829] pumpRunning = 1 [L810] RET activatePump() [L781] RET processEnvironment() [L787] CALL __utac_acc__Specification2_spec__2() [L265] int tmp ; [L266] int tmp___0 ; [L270] CALL, EXPR isMethaneLevelCritical() [L190] int retValue_acc ; [L193] retValue_acc = methaneLevelCritical [L194] return (retValue_acc); [L270] RET, EXPR isMethaneLevelCritical() [L270] tmp = isMethaneLevelCritical() [L272] COND TRUE \read(tmp) [L274] CALL, EXPR isPumpRunning() [L853] int retValue_acc ; [L856] retValue_acc = pumpRunning [L857] return (retValue_acc); [L274] RET, EXPR isPumpRunning() [L274] tmp___0 = isPumpRunning() [L276] COND TRUE \read(tmp___0) [L277] COND FALSE !(\read(methAndRunningLastTime)) [L282] methAndRunningLastTime = 1 [L787] RET __utac_acc__Specification2_spec__2() [L751] RET timeShift() [L706] COND TRUE 1 [L708] COND TRUE splverifierCounter < 4 [L714] tmp = __VERIFIER_nondet_int() [L716] COND FALSE !(\read(tmp)) [L724] tmp___0 = __VERIFIER_nondet_int() [L726] COND FALSE !(\read(tmp___0)) [L734] tmp___2 = __VERIFIER_nondet_int() [L736] COND FALSE !(\read(tmp___2)) [L742] tmp___1 = __VERIFIER_nondet_int() [L744] COND TRUE \read(tmp___1) [L751] CALL timeShift() [L772] COND TRUE \read(pumpRunning) [L774] CALL lowerWaterLevel() [L157] COND TRUE waterLevel > 0 [L158] waterLevel = waterLevel - 1 [L774] RET lowerWaterLevel() [L779] COND TRUE \read(systemActive) [L781] CALL processEnvironment() [L801] int tmp ; [L804] COND FALSE !(! pumpRunning) [L819] FCALL processEnvironment__wrappee__base() [L781] RET processEnvironment() [L787] CALL __utac_acc__Specification2_spec__2() [L265] int tmp ; [L266] int tmp___0 ; [L270] CALL, EXPR isMethaneLevelCritical() [L190] int retValue_acc ; [L193] retValue_acc = methaneLevelCritical [L194] return (retValue_acc); [L270] RET, EXPR isMethaneLevelCritical() [L270] tmp = isMethaneLevelCritical() [L272] COND TRUE \read(tmp) [L274] CALL, EXPR isPumpRunning() [L853] int retValue_acc ; [L856] retValue_acc = pumpRunning [L857] return (retValue_acc); [L274] RET, EXPR isPumpRunning() [L274] tmp___0 = isPumpRunning() [L276] COND TRUE \read(tmp___0) [L277] COND TRUE \read(methAndRunningLastTime) [L279] CALL __automaton_fail() [L249] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 224 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 59.9s, OverallIterations: 10, TraceHistogramMax: 2, AutomataDifference: 21.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 971 SDtfs, 2066 SDslu, 979 SDs, 0 SdLazy, 4154 SolverSat, 1517 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 371 GetRequests, 245 SyntacticMatches, 3 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 531 ImplicationChecksByTransitivity, 9.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1016occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 9 MinimizatonAttempts, 433 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 36.4s InterpolantComputationTime, 861 NumberOfCodeBlocks, 861 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 721 ConstructedInterpolants, 0 QuantifiedInterpolants, 253765 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 56/59 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...