/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:12:10,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:12:10,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:12:10,415 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:12:10,416 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:12:10,428 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:12:10,430 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:12:10,434 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:12:10,437 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:12:10,441 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:12:10,442 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:12:10,443 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:12:10,443 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:12:10,447 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:12:10,450 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:12:10,452 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:12:10,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:12:10,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:12:10,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:12:10,467 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:12:10,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:12:10,471 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:12:10,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:12:10,473 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:12:10,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:12:10,476 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:12:10,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:12:10,480 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:12:10,480 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:12:10,482 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:12:10,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:12:10,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:12:10,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:12:10,485 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:12:10,486 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:12:10,487 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:12:10,487 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:12:10,488 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:12:10,488 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:12:10,489 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:12:10,490 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:12:10,491 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 05:12:10,538 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:12:10,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:12:10,540 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:12:10,541 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:12:10,541 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:12:10,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:12:10,541 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:12:10,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:12:10,542 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:12:10,542 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:12:10,543 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:12:10,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:12:10,544 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:12:10,544 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:12:10,544 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:12:10,544 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:12:10,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:12:10,545 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:12:10,545 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:12:10,545 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:12:10,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:12:10,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:12:10,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:12:10,546 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:12:10,546 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:12:10,547 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:12:10,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:12:10,547 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:12:10,547 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:12:10,547 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 -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:12:10,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:12:11,013 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:12:11,018 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:12:11,021 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:12:11,021 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:12:11,022 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c [2020-09-25 05:12:11,117 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/302ecbb7e/dfc3537d7c094fdfb18fedcf653638b3/FLAG73736e499 [2020-09-25 05:12:11,728 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:12:11,729 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c [2020-09-25 05:12:11,746 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/302ecbb7e/dfc3537d7c094fdfb18fedcf653638b3/FLAG73736e499 [2020-09-25 05:12:12,013 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/302ecbb7e/dfc3537d7c094fdfb18fedcf653638b3 [2020-09-25 05:12:12,028 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:12:12,034 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:12:12,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:12:12,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:12:12,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:12:12,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:12:12" (1/1) ... [2020-09-25 05:12:12,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:12, skipping insertion in model container [2020-09-25 05:12:12,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:12:12" (1/1) ... [2020-09-25 05:12:12,056 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:12:12,109 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:12:12,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:12:12,484 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:12:12,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:12:12,725 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:12:12,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:12 WrapperNode [2020-09-25 05:12:12,727 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:12:12,728 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:12:12,728 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:12:12,728 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:12:12,743 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:12" (1/1) ... [2020-09-25 05:12:12,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:12" (1/1) ... [2020-09-25 05:12:12,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:12" (1/1) ... [2020-09-25 05:12:12,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:12" (1/1) ... [2020-09-25 05:12:12,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:12" (1/1) ... [2020-09-25 05:12:12,826 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:12" (1/1) ... [2020-09-25 05:12:12,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:12" (1/1) ... [2020-09-25 05:12:12,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:12:12,839 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:12:12,839 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:12:12,839 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:12:12,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:12" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:12:12,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:12:12,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:12:12,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 05:12:12,914 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 05:12:12,914 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 05:12:12,915 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 05:12:12,915 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 05:12:12,915 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:12:12,915 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 05:12:12,915 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 05:12:12,916 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 05:12:12,916 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 05:12:12,916 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 05:12:12,916 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 05:12:12,916 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 05:12:12,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 05:12:12,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 05:12:12,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 05:12:12,917 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 05:12:12,918 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 05:12:12,918 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 05:12:12,918 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 05:12:12,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 05:12:12,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 05:12:12,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 05:12:12,919 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 05:12:12,919 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 05:12:12,919 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 05:12:12,919 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 05:12:12,919 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 05:12:12,919 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 05:12:12,920 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 05:12:12,920 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 05:12:12,920 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 05:12:12,920 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 05:12:12,920 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 05:12:12,920 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 05:12:12,921 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 05:12:12,921 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 05:12:12,921 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:12:12,921 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:12:12,921 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 05:12:12,921 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 05:12:12,922 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 05:12:12,922 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 05:12:12,922 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 05:12:12,922 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 05:12:12,922 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 05:12:12,923 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 05:12:12,923 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 05:12:12,923 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 05:12:12,923 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 05:12:12,923 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 05:12:12,923 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 05:12:12,924 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 05:12:12,924 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:12:12,924 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 05:12:12,924 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 05:12:12,924 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 05:12:12,924 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 05:12:12,924 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 05:12:12,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:12:12,925 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 05:12:12,925 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 05:12:12,925 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 05:12:12,925 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 05:12:12,925 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 05:12:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:12:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:12:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 05:12:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:12:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:12:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:12:12,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:12:12,927 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 05:12:12,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:12:12,927 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 05:12:12,927 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 05:12:12,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:12:12,928 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 05:12:12,928 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 05:12:12,928 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 05:12:12,928 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 05:12:12,928 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 05:12:12,928 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 05:12:12,929 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 05:12:12,929 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 05:12:12,929 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 05:12:12,929 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 05:12:12,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:12:12,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 05:12:12,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:12:14,152 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:12:14,153 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 05:12:14,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:12:14 BoogieIcfgContainer [2020-09-25 05:12:14,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:12:14,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:12:14,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:12:14,169 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:12:14,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:12:12" (1/3) ... [2020-09-25 05:12:14,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10b6aad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:12:14, skipping insertion in model container [2020-09-25 05:12:14,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:12" (2/3) ... [2020-09-25 05:12:14,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10b6aad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:12:14, skipping insertion in model container [2020-09-25 05:12:14,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:12:14" (3/3) ... [2020-09-25 05:12:14,175 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product34.cil.c [2020-09-25 05:12:14,188 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:12:14,203 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:12:14,228 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:12:14,275 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:12:14,275 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:12:14,275 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:12:14,276 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:12:14,276 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:12:14,276 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:12:14,276 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:12:14,276 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:12:14,314 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states. [2020-09-25 05:12:14,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 05:12:14,342 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:12:14,344 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:12:14,344 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:12:14,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:12:14,353 INFO L82 PathProgramCache]: Analyzing trace with hash 2110285638, now seen corresponding path program 1 times [2020-09-25 05:12:14,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:12:14,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1356962896] [2020-09-25 05:12:14,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:12:14,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:14,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:15,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:16,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:17,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:18,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:19,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:19,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 05:12:19,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:12:19,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 05:12:19,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:19,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:19,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:19,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 05:12:19,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:19,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 05:12:20,218 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:12:20,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:12:20,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:20,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:20,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:20,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:12:20,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:20,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-25 05:12:20,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:20,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:20,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:20,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:20,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:20,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:20,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:12:20,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:20,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:20,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:20,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:20,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:20,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:12:20,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:20,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:20,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:20,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:20,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:20,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:20,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:12:20,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:20,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:20,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:20,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:20,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:20,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:20,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:20,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:20,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:20,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:20,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:20,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:20,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:12:20,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:20,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:20,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:20,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:20,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:20,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:12:20,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:20,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:20,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:20,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:20,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:20,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:20,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:12:20,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:20,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:20,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:20,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:20,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:20,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:20,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:20,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:20,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:20,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:20,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:20,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:20,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:12:20,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:20,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:20,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:20,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:12:20,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:20,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:20,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:20,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:20,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:20,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:20,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:20,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:20,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 05:12:20,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:20,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:20,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:20,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:20,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:20,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:20,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:20,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:20,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:20,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:12:20,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:20,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:20,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 05:12:20,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:20,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:20,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:20,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:20,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:20,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:20,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:20,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:20,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:20,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:12:20,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:20,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:20,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:12:20,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1356962896] [2020-09-25 05:12:20,576 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:12:20,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:12:20,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720070210] [2020-09-25 05:12:20,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:12:20,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:12:20,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:12:20,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:12:20,608 INFO L87 Difference]: Start difference. First operand 297 states. Second operand 4 states. [2020-09-25 05:12:22,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:12:22,030 INFO L93 Difference]: Finished difference Result 442 states and 524 transitions. [2020-09-25 05:12:22,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 05:12:22,032 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 05:12:22,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:12:22,065 INFO L225 Difference]: With dead ends: 442 [2020-09-25 05:12:22,065 INFO L226 Difference]: Without dead ends: 287 [2020-09-25 05:12:22,073 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 [2020-09-25 05:12:22,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-09-25 05:12:22,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 240. [2020-09-25 05:12:22,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-09-25 05:12:22,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 259 transitions. [2020-09-25 05:12:22,198 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 259 transitions. Word has length 148 [2020-09-25 05:12:22,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:12:22,200 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 259 transitions. [2020-09-25 05:12:22,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:12:22,200 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 259 transitions. [2020-09-25 05:12:22,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 05:12:22,204 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:12:22,205 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:12:22,205 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:12:22,205 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:12:22,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:12:22,206 INFO L82 PathProgramCache]: Analyzing trace with hash 16536712, now seen corresponding path program 1 times [2020-09-25 05:12:22,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:12:22,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1542283209] [2020-09-25 05:12:22,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:12:22,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:22,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:22,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:23,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:24,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:25,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:26,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:27,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:27,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 05:12:27,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:12:27,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-09-25 05:12:27,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:27,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:27,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:12:27,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 05:12:27,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:12:27,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:27,607 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:12:27,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:12:27,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:27,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:27,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:27,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:12:27,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:27,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 05:12:27,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:27,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:27,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:27,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:27,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:27,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:27,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:12:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:27,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:27,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:27,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:27,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:27,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:27,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:27,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:27,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:27,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:27,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:27,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:27,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:12:27,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:27,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:27,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:27,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:27,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:27,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:27,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:27,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:27,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:27,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:27,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:27,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:27,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:12:27,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:27,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:27,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:27,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:27,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:27,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:12:27,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:27,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:27,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:27,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:27,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:27,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:27,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:12:27,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:27,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:27,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:27,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:27,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:27,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:27,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:27,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:27,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:27,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:27,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:27,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:27,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:12:27,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:27,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:27,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:27,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:12:27,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:27,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:27,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:27,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:27,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:27,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:27,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:27,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:27,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 05:12:27,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:27,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:27,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:27,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:27,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:27,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:12:27,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:27,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:27,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:27,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:12:27,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:27,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:27,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 05:12:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:27,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:27,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:27,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:27,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:27,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:27,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:27,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:27,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:27,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:12:27,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:27,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:27,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:12:27,895 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1542283209] [2020-09-25 05:12:27,895 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:12:27,895 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 05:12:27,896 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983540086] [2020-09-25 05:12:27,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:12:27,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:12:27,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:12:27,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:12:27,900 INFO L87 Difference]: Start difference. First operand 240 states and 259 transitions. Second operand 5 states. [2020-09-25 05:12:28,608 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:12:29,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:12:29,576 INFO L93 Difference]: Finished difference Result 367 states and 415 transitions. [2020-09-25 05:12:29,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:12:29,577 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 05:12:29,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:12:29,585 INFO L225 Difference]: With dead ends: 367 [2020-09-25 05:12:29,586 INFO L226 Difference]: Without dead ends: 276 [2020-09-25 05:12:29,588 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 [2020-09-25 05:12:29,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-09-25 05:12:29,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 230. [2020-09-25 05:12:29,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-25 05:12:29,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 246 transitions. [2020-09-25 05:12:29,657 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 246 transitions. Word has length 149 [2020-09-25 05:12:29,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:12:29,661 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 246 transitions. [2020-09-25 05:12:29,661 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:12:29,661 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 246 transitions. [2020-09-25 05:12:29,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 05:12:29,671 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:12:29,671 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:12:29,672 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:12:29,673 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:12:29,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:12:29,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1541802730, now seen corresponding path program 1 times [2020-09-25 05:12:29,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:12:29,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1051033340] [2020-09-25 05:12:29,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:12:29,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:29,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:29,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:30,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:31,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:32,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:34,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:34,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-25 05:12:34,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:12:34,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-25 05:12:34,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:34,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:34,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:12:34,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 05:12:34,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:12:34,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:35,074 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:12:35,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:12:35,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:35,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:35,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:35,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:12:35,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:35,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 05:12:35,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:35,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:35,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:35,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:35,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:35,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:35,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:12:35,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:35,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:35,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:35,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:35,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:35,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:35,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:35,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:35,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:35,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:35,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:35,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:35,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:12:35,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:35,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:35,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:35,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:35,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:35,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:35,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:35,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:35,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:35,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:35,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:35,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:35,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:12:35,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:35,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:35,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:35,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:35,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:35,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:12:35,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:35,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:35,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:35,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:35,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:35,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 05:12:35,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:12:35,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:35,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:35,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:35,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:35,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:35,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:12:35,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:35,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:35,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:35,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:35,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:35,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:35,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:12:35,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:35,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:35,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:35,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:12:35,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:35,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:35,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:35,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:35,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:35,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:35,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:35,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:35,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 05:12:35,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:35,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:35,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:35,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:12:35,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:35,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:12:35,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:35,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:35,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:12:35,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:35,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:12:35,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:35,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 05:12:35,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:35,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:35,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:35,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:35,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:35,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:12:35,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:35,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:35,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:35,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:12:35,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:35,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:35,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 05:12:35,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:35,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:35,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:35,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:35,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:35,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:12:35,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:35,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:35,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:35,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:12:35,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:35,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:35,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:12:35,393 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1051033340] [2020-09-25 05:12:35,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:12:35,394 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:12:35,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974781097] [2020-09-25 05:12:35,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:12:35,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:12:35,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:12:35,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:12:35,400 INFO L87 Difference]: Start difference. First operand 230 states and 246 transitions. Second operand 6 states. [2020-09-25 05:12:36,002 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:12:36,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:12:36,916 INFO L93 Difference]: Finished difference Result 414 states and 480 transitions. [2020-09-25 05:12:36,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 05:12:36,917 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 05:12:36,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:12:36,921 INFO L225 Difference]: With dead ends: 414 [2020-09-25 05:12:36,921 INFO L226 Difference]: Without dead ends: 299 [2020-09-25 05:12:36,923 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:12:36,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2020-09-25 05:12:36,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 230. [2020-09-25 05:12:36,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-25 05:12:36,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 245 transitions. [2020-09-25 05:12:36,979 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 245 transitions. Word has length 162 [2020-09-25 05:12:36,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:12:36,979 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 245 transitions. [2020-09-25 05:12:36,980 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:12:36,980 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 245 transitions. [2020-09-25 05:12:36,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 05:12:36,982 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:12:36,982 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:12:36,983 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:12:36,983 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:12:36,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:12:36,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1425032231, now seen corresponding path program 1 times [2020-09-25 05:12:36,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:12:36,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [4852160] [2020-09-25 05:12:36,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:12:37,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:37,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:37,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:38,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:38,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:39,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:39,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:42,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:42,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 05:12:42,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:12:42,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 05:12:42,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:42,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:42,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:12:42,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 159 [2020-09-25 05:12:42,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:12:42,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:42,330 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:12:42,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:12:42,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:42,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:42,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:42,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:12:42,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:42,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 05:12:42,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:42,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:42,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:42,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:42,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:42,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:42,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:12:42,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:42,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:42,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:42,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:42,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:42,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:42,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:42,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:42,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:42,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:42,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:42,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:42,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:12:42,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:42,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:42,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:42,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:42,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:42,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:12:42,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:42,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:42,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:42,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:42,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:42,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:42,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:12:42,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:42,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:42,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:42,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:42,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:42,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:12:42,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:42,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:42,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:42,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:42,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:42,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:42,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:12:42,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:42,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:42,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:42,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:42,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:42,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:12:42,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:42,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:42,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:42,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:42,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:42,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:42,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:12:42,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:42,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:42,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:42,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:12:42,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:42,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:42,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:42,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:42,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:42,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:42,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:42,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:42,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 05:12:42,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:42,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:42,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:42,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:12:42,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:42,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:42,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:42,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:42,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:42,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:42,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:42,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:42,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 05:12:42,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:42,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:42,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:42,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:12:42,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:42,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:12:42,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:42,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:42,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:12:42,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 05:12:42,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 05:12:42,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:42,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:12:42,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:42,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:42,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:42,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:42,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:42,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:12:42,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:42,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:42,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:12:42,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:42,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:12:42,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:42,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 05:12:42,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:42,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:42,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:42,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:42,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:42,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:12:42,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:42,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:42,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:42,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:12:42,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:42,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:42,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 05:12:42,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:42,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:42,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:42,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:42,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:42,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:42,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:42,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:42,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:42,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:12:42,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:42,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:42,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:12:42,636 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [4852160] [2020-09-25 05:12:42,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:12:42,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 05:12:42,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107144081] [2020-09-25 05:12:42,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 05:12:42,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:12:42,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 05:12:42,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 05:12:42,638 INFO L87 Difference]: Start difference. First operand 230 states and 245 transitions. Second operand 8 states. [2020-09-25 05:12:43,303 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:12:45,302 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:12:46,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:12:46,107 INFO L93 Difference]: Finished difference Result 593 states and 710 transitions. [2020-09-25 05:12:46,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 05:12:46,108 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 170 [2020-09-25 05:12:46,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:12:46,113 INFO L225 Difference]: With dead ends: 593 [2020-09-25 05:12:46,113 INFO L226 Difference]: Without dead ends: 478 [2020-09-25 05:12:46,114 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2020-09-25 05:12:46,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2020-09-25 05:12:46,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 337. [2020-09-25 05:12:46,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-09-25 05:12:46,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 364 transitions. [2020-09-25 05:12:46,212 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 364 transitions. Word has length 170 [2020-09-25 05:12:46,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:12:46,212 INFO L479 AbstractCegarLoop]: Abstraction has 337 states and 364 transitions. [2020-09-25 05:12:46,213 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 05:12:46,213 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 364 transitions. [2020-09-25 05:12:46,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 05:12:46,215 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:12:46,216 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:12:46,216 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:12:46,216 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:12:46,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:12:46,216 INFO L82 PathProgramCache]: Analyzing trace with hash 1572233247, now seen corresponding path program 1 times [2020-09-25 05:12:46,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:12:46,217 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1012029021] [2020-09-25 05:12:46,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:12:46,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:46,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:47,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:47,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:48,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:50,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:51,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:51,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-25 05:12:51,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:12:51,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 05:12:51,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:51,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:51,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:12:51,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 05:12:51,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-25 05:12:51,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:51,619 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:12:51,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:12:51,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:51,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:51,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:51,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:12:51,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:51,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 05:12:51,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:51,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:51,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:51,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:51,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:51,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:51,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:12:51,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:51,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:51,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:51,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:51,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:51,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:51,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:51,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:51,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:51,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:51,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:51,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:51,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:12:51,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:51,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:51,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:51,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:51,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:51,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:12:51,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:51,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:51,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:51,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:51,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:51,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:51,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:12:51,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:51,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:51,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:51,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:51,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:51,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:12:51,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:51,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:51,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:51,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:51,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:51,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:51,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:12:51,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:51,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:51,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:51,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:51,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:51,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:12:51,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:51,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:51,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:51,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:51,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:51,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:51,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:12:51,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:51,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:51,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:51,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:12:51,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:51,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:12:51,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:51,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:51,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:12:51,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:51,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:12:51,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:51,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 05:12:51,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:51,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:51,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:51,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:12:51,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:51,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:12:51,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:51,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:51,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:12:51,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:51,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 05:12:51,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:51,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 05:12:51,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:51,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:51,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:51,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 05:12:51,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:51,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 05:12:51,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:51,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:51,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:12:51,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:51,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-25 05:12:51,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:51,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:12:51,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:51,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:51,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:51,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 05:12:51,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:51,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:12:51,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:51,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:51,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:51,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:51,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:51,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:51,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:12:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:51,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:51,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:51,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:12:51,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:51,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:12:51,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:51,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:51,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:51,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:51,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:51,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:51,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 05:12:51,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:51,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:51,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:51,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:51,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:51,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:12:51,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:51,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:51,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:51,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:51,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:51,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:51,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 05:12:51,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:51,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:51,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:51,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:51,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:51,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:12:51,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:51,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:51,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:12:51,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:51,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:12:51,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:51,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 05:12:51,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:51,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:51,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:51,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:51,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:51,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:12:51,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:51,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:51,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:12:51,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:51,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:12:51,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:51,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:12:51,989 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1012029021] [2020-09-25 05:12:51,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:12:51,990 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 05:12:51,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477695816] [2020-09-25 05:12:51,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 05:12:51,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:12:51,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 05:12:51,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:12:51,992 INFO L87 Difference]: Start difference. First operand 337 states and 364 transitions. Second operand 7 states. [2020-09-25 05:12:52,590 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:12:54,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:12:54,997 INFO L93 Difference]: Finished difference Result 918 states and 1179 transitions. [2020-09-25 05:12:54,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 05:12:54,997 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 194 [2020-09-25 05:12:54,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:12:55,007 INFO L225 Difference]: With dead ends: 918 [2020-09-25 05:12:55,007 INFO L226 Difference]: Without dead ends: 915 [2020-09-25 05:12:55,009 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2020-09-25 05:12:55,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2020-09-25 05:12:55,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 565. [2020-09-25 05:12:55,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 565 states. [2020-09-25 05:12:55,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 627 transitions. [2020-09-25 05:12:55,102 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 627 transitions. Word has length 194 [2020-09-25 05:12:55,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:12:55,103 INFO L479 AbstractCegarLoop]: Abstraction has 565 states and 627 transitions. [2020-09-25 05:12:55,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 05:12:55,103 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 627 transitions. [2020-09-25 05:12:55,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-09-25 05:12:55,108 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:12:55,108 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:12:55,109 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:12:55,109 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:12:55,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:12:55,109 INFO L82 PathProgramCache]: Analyzing trace with hash -690696280, now seen corresponding path program 1 times [2020-09-25 05:12:55,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:12:55,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [920580797] [2020-09-25 05:12:55,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:12:55,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:55,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:55,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:56,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking...