/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=1.0 --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_product05.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:37:09,448 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:37:09,452 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:37:09,477 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:37:09,478 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:37:09,479 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:37:09,480 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:37:09,482 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:37:09,484 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:37:09,485 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:37:09,486 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:37:09,487 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:37:09,487 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:37:09,488 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:37:09,489 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:37:09,491 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:37:09,492 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:37:09,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:37:09,496 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:37:09,498 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:37:09,500 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:37:09,501 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:37:09,502 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:37:09,503 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:37:09,505 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:37:09,506 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:37:09,506 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:37:09,507 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:37:09,507 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:37:09,508 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:37:09,509 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:37:09,510 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:37:09,510 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:37:09,511 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:37:09,512 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:37:09,513 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:37:09,513 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:37:09,514 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:37:09,514 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:37:09,515 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:37:09,516 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:37:09,517 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 08:37:09,542 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:37:09,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:37:09,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:37:09,543 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:37:09,544 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:37:09,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:37:09,544 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:37:09,544 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:37:09,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:37:09,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:37:09,545 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:37:09,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:37:09,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:37:09,545 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:37:09,546 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:37:09,546 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:37:09,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:37:09,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:37:09,547 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:37:09,547 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:37:09,547 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:37:09,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:37:09,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:37:09,548 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:37:09,548 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:37:09,548 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:37:09,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:37:09,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:37:09,549 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:37:09,549 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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;log-additional-information=true; [2020-09-25 08:37:10,025 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:37:10,050 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:37:10,055 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:37:10,058 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:37:10,059 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:37:10,061 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product05.cil.c [2020-09-25 08:37:10,157 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2480d11b8/34db4fdbae48467abd213d66fc818d5c/FLAG90674fd2d [2020-09-25 08:37:10,787 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:37:10,788 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product05.cil.c [2020-09-25 08:37:10,802 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2480d11b8/34db4fdbae48467abd213d66fc818d5c/FLAG90674fd2d [2020-09-25 08:37:11,059 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2480d11b8/34db4fdbae48467abd213d66fc818d5c [2020-09-25 08:37:11,073 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:37:11,079 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:37:11,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:37:11,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:37:11,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:37:11,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:37:11" (1/1) ... [2020-09-25 08:37:11,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bbef4a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:37:11, skipping insertion in model container [2020-09-25 08:37:11,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:37:11" (1/1) ... [2020-09-25 08:37:11,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:37:11,152 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:37:11,667 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:37:11,687 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:37:11,805 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:37:11,853 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:37:11,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:37:11 WrapperNode [2020-09-25 08:37:11,854 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:37:11,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:37:11,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:37:11,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:37:11,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:37:11" (1/1) ... [2020-09-25 08:37:11,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:37:11" (1/1) ... [2020-09-25 08:37:11,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:37:11" (1/1) ... [2020-09-25 08:37:11,892 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:37:11" (1/1) ... [2020-09-25 08:37:11,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:37:11" (1/1) ... [2020-09-25 08:37:11,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:37:11" (1/1) ... [2020-09-25 08:37:11,950 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:37:11" (1/1) ... [2020-09-25 08:37:11,961 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:37:11,963 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:37:11,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:37:11,963 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:37:11,965 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:37:11" (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 08:37:12,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:37:12,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:37:12,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 08:37:12,040 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 08:37:12,040 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 08:37:12,041 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 08:37:12,041 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 08:37:12,041 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:37:12,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 08:37:12,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 08:37:12,042 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 08:37:12,042 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 08:37:12,042 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 08:37:12,042 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 08:37:12,042 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 08:37:12,043 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 08:37:12,043 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 08:37:12,043 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 08:37:12,043 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 08:37:12,044 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 08:37:12,044 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 08:37:12,044 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 08:37:12,044 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 08:37:12,044 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 08:37:12,045 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 08:37:12,045 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 08:37:12,045 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 08:37:12,045 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 08:37:12,045 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 08:37:12,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 08:37:12,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 08:37:12,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 08:37:12,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 08:37:12,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 08:37:12,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 08:37:12,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 08:37:12,047 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:37:12,047 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:37:12,047 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 08:37:12,047 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 08:37:12,047 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 08:37:12,048 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 08:37:12,048 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 08:37:12,048 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 08:37:12,048 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 08:37:12,048 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 08:37:12,048 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 08:37:12,049 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 08:37:12,049 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 08:37:12,049 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 08:37:12,049 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 08:37:12,049 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 08:37:12,049 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:37:12,050 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 08:37:12,050 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 08:37:12,050 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 08:37:12,050 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 08:37:12,050 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 08:37:12,050 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 08:37:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 08:37:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 08:37:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 08:37:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 08:37:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 08:37:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:37:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 08:37:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 08:37:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 08:37:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:37:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:37:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 08:37:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:37:12,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:37:12,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:37:12,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:37:12,053 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 08:37:12,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:37:12,053 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 08:37:12,054 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 08:37:12,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:37:12,054 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 08:37:12,054 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 08:37:12,054 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 08:37:12,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:37:12,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 08:37:12,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:37:13,233 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:37:13,233 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 08:37:13,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:37:13 BoogieIcfgContainer [2020-09-25 08:37:13,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:37:13,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:37:13,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:37:13,247 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:37:13,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:37:11" (1/3) ... [2020-09-25 08:37:13,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa67022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:37:13, skipping insertion in model container [2020-09-25 08:37:13,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:37:11" (2/3) ... [2020-09-25 08:37:13,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa67022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:37:13, skipping insertion in model container [2020-09-25 08:37:13,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:37:13" (3/3) ... [2020-09-25 08:37:13,252 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product05.cil.c [2020-09-25 08:37:13,265 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:37:13,278 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:37:13,303 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:37:13,347 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:37:13,348 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:37:13,348 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:37:13,348 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:37:13,348 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:37:13,348 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:37:13,349 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:37:13,349 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:37:13,380 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states. [2020-09-25 08:37:13,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 08:37:13,400 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:37:13,402 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 08:37:13,402 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:37:13,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:37:13,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1360572740, now seen corresponding path program 1 times [2020-09-25 08:37:13,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:37:13,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1661689306] [2020-09-25 08:37:13,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:37:13,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:13,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:14,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:14,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:15,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:16,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:18,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:18,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 08:37:18,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:37:18,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 08:37:18,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:18,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:18,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:37:18,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 08:37:18,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 08:37:18,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-09-25 08:37:19,505 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:37:19,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:37:19,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:19,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:19,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:19,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:37:19,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:19,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 310 [2020-09-25 08:37:19,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:19,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:19,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:37:19,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:19,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 08:37:19,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:20,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:37:20,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:20,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:20,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:20,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:37:20,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:20,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:37:20,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:20,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:20,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:37:20,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:20,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:37:20,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:20,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:37:20,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:20,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:20,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:20,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:37:20,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:20,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:37:20,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:20,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:20,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:37:20,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:20,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:37:20,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:20,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:37:20,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:20,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:20,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:20,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:37:20,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:20,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:37:20,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:20,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:20,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:37:20,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:20,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:37:20,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:20,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:37:20,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:20,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:20,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:20,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:37:20,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:20,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:37:20,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:20,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:20,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:37:20,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:20,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:37:20,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:20,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:37:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:20,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:20,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:20,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:37:20,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:20,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:37:20,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:20,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:20,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:37:20,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:20,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 08:37:20,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:20,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 08:37:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:20,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:20,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:20,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:37:20,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:20,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:37:20,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:20,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:20,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:20,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:37:20,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:20,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:20,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 08:37:20,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:20,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:20,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:20,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:37:20,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:20,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:37:20,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:20,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:20,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:20,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:37:20,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:20,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:20,154 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 08:37:20,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1661689306] [2020-09-25 08:37:20,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:37:20,159 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:37:20,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195190936] [2020-09-25 08:37:20,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:37:20,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:37:20,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:37:20,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:37:20,194 INFO L87 Difference]: Start difference. First operand 273 states. Second operand 5 states. [2020-09-25 08:37:20,883 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:37:21,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:37:21,652 INFO L93 Difference]: Finished difference Result 404 states and 482 transitions. [2020-09-25 08:37:21,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:37:21,655 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-25 08:37:21,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:37:21,675 INFO L225 Difference]: With dead ends: 404 [2020-09-25 08:37:21,676 INFO L226 Difference]: Without dead ends: 267 [2020-09-25 08:37:21,682 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:37:21,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2020-09-25 08:37:21,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 222. [2020-09-25 08:37:21,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-09-25 08:37:21,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 239 transitions. [2020-09-25 08:37:21,789 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 239 transitions. Word has length 148 [2020-09-25 08:37:21,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:37:21,790 INFO L479 AbstractCegarLoop]: Abstraction has 222 states and 239 transitions. [2020-09-25 08:37:21,790 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:37:21,791 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 239 transitions. [2020-09-25 08:37:21,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-25 08:37:21,797 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:37:21,798 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] [2020-09-25 08:37:21,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:37:21,799 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:37:21,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:37:21,799 INFO L82 PathProgramCache]: Analyzing trace with hash -731898127, now seen corresponding path program 1 times [2020-09-25 08:37:21,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:37:21,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1804969476] [2020-09-25 08:37:21,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:37:21,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:21,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:22,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:23,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:23,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:24,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:26,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:26,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 08:37:26,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:37:26,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 08:37:26,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:26,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:26,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:37:26,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 08:37:26,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 08:37:26,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:27,194 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:37:27,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:37:27,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:27,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:27,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:27,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:37:27,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:27,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 08:37:27,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:27,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:27,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:27,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:27,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:27,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:27,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:37:27,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:27,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:27,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:27,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:37:27,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:27,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:37:27,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:27,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:27,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:27,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:27,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:27,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:27,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:37:27,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:27,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:27,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:27,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:37:27,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:27,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:37:27,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:27,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:27,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:27,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:27,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:27,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:27,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:37:27,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:27,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:27,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:27,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:37:27,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:27,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:37:27,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:27,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:27,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:27,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:27,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:27,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:27,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:37:27,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:27,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:27,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:27,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:37:27,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:27,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:37:27,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:27,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:27,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:27,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:27,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:27,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:27,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:37:27,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:27,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:27,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:27,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:37:27,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:27,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:37:27,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:27,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:27,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:27,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:27,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:27,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:27,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 08:37:27,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:27,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:27,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:27,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:37:27,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:27,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:37:27,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:27,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:27,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:27,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 08:37:27,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:27,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:27,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:37:27,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:27,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:27,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:27,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:37:27,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:27,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:37:27,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:27,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:27,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:27,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:27,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:27,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:27,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 08:37:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:27,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:27,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:27,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:37:27,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:27,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:37:27,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:27,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:27,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:27,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:37:27,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:27,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:27,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 08:37:27,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:27,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:27,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:27,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:37:27,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:27,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:37:27,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:27,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:27,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:27,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:37:27,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:27,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:27,474 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 08:37:27,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1804969476] [2020-09-25 08:37:27,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:37:27,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 08:37:27,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548926556] [2020-09-25 08:37:27,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 08:37:27,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:37:27,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 08:37:27,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:37:27,480 INFO L87 Difference]: Start difference. First operand 222 states and 239 transitions. Second operand 6 states. [2020-09-25 08:37:28,232 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:37:29,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:37:29,111 INFO L93 Difference]: Finished difference Result 357 states and 411 transitions. [2020-09-25 08:37:29,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 08:37:29,114 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 157 [2020-09-25 08:37:29,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:37:29,125 INFO L225 Difference]: With dead ends: 357 [2020-09-25 08:37:29,126 INFO L226 Difference]: Without dead ends: 280 [2020-09-25 08:37:29,129 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:37:29,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-09-25 08:37:29,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 212. [2020-09-25 08:37:29,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-09-25 08:37:29,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 226 transitions. [2020-09-25 08:37:29,210 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 226 transitions. Word has length 157 [2020-09-25 08:37:29,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:37:29,213 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 226 transitions. [2020-09-25 08:37:29,213 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 08:37:29,213 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 226 transitions. [2020-09-25 08:37:29,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-25 08:37:29,223 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:37:29,223 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] [2020-09-25 08:37:29,223 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:37:29,224 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:37:29,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:37:29,224 INFO L82 PathProgramCache]: Analyzing trace with hash 322007088, now seen corresponding path program 1 times [2020-09-25 08:37:29,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:37:29,225 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1903519467] [2020-09-25 08:37:29,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:37:29,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:29,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:30,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:30,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:30,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:32,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:34,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:34,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 08:37:34,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:37:34,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 08:37:34,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:34,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:34,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 08:37:34,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 08:37:34,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-25 08:37:34,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:34,668 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:37:34,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:37:34,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:34,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:34,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:34,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:37:34,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:34,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-09-25 08:37:34,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:34,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:34,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:37:34,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:34,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 08:37:34,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:37:34,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:37:34,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:34,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:34,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:34,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:37:34,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:34,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:37:34,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:34,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:34,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:37:34,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:34,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:37:34,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:34,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:37:34,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:34,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:34,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:34,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:37:34,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:34,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:37:34,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:34,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:35,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:37:35,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:35,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:37:35,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:37:35,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:37:35,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:35,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:35,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:35,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:37:35,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:35,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:37:35,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:35,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:35,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:37:35,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:35,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:37:35,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:37:35,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:37:35,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:35,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:35,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:35,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:37:35,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:35,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:37:35,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:35,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:35,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:37:35,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:35,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:37:35,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:35,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:37:35,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:35,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:35,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:35,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:37:35,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:35,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:37:35,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:35,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:35,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:37:35,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:35,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 08:37:35,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:37:35,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 08:37:35,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:35,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:35,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:35,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:37:35,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:35,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:37:35,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:35,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:35,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:37:35,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:35,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 08:37:35,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:37:35,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:37:35,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:35,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:35,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:35,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:37:35,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:35,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:37:35,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:35,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:35,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:35,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:35,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:35,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:37:35,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 08:37:35,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:35,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:35,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:35,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:37:35,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:35,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:37:35,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:35,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:35,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:37:35,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:35,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:37:35,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:37:35,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 08:37:35,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:35,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:35,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:35,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:37:35,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:35,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:37:35,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:35,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:35,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:35,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:37:35,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:35,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:37:35,139 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 08:37:35,140 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1903519467] [2020-09-25 08:37:35,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:37:35,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 08:37:35,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904482089] [2020-09-25 08:37:35,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 08:37:35,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:37:35,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 08:37:35,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:37:35,142 INFO L87 Difference]: Start difference. First operand 212 states and 226 transitions. Second operand 10 states. [2020-09-25 08:37:35,799 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:37:37,087 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:37:37,427 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:37:37,843 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:37:38,165 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:37:38,911 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:37:39,243 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 08:37:39,561 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 08:37:40,055 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:37:40,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:37:40,577 INFO L93 Difference]: Finished difference Result 500 states and 601 transitions. [2020-09-25 08:37:40,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 08:37:40,581 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 166 [2020-09-25 08:37:40,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:37:40,586 INFO L225 Difference]: With dead ends: 500 [2020-09-25 08:37:40,586 INFO L226 Difference]: Without dead ends: 403 [2020-09-25 08:37:40,588 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-09-25 08:37:40,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2020-09-25 08:37:40,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 291. [2020-09-25 08:37:40,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 291 states. [2020-09-25 08:37:40,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 317 transitions. [2020-09-25 08:37:40,641 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 317 transitions. Word has length 166 [2020-09-25 08:37:40,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:37:40,642 INFO L479 AbstractCegarLoop]: Abstraction has 291 states and 317 transitions. [2020-09-25 08:37:40,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 08:37:40,642 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 317 transitions. [2020-09-25 08:37:40,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 08:37:40,644 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:37:40,645 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] [2020-09-25 08:37:40,645 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:37:40,645 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:37:40,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:37:40,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1324537707, now seen corresponding path program 1 times [2020-09-25 08:37:40,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:37:40,646 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1279176843] [2020-09-25 08:37:40,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:37:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:40,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:40,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:41,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:43,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:45,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:45,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-25 08:37:45,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:37:45,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 08:37:45,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:45,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:45,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:37:45,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 08:37:45,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-25 08:37:45,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:45,967 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:37:45,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:37:45,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:45,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:46,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:46,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:37:46,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:46,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-25 08:37:46,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:46,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:46,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:46,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:46,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:46,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:37:46,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:37:46,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:46,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:46,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:46,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:37:46,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:46,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:37:46,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:46,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:46,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:46,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:46,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:46,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:46,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:37:46,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:46,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:46,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:46,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:37:46,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:46,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:37:46,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:46,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:46,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:46,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:46,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:46,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:37:46,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:37:46,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:46,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:46,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:46,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:37:46,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:46,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:37:46,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:46,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:46,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:46,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:46,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:46,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:46,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:37:46,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:46,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:46,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:46,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:37:46,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:46,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:37:46,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:46,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:46,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:46,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:46,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:46,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:46,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:37:46,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:46,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:46,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:46,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:37:46,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:46,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:37:46,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:46,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:46,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:37:46,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:46,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:37:46,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:46,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 08:37:46,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:46,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:46,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:46,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:37:46,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:46,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:37:46,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:46,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:46,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:37:46,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:46,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:37:46,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:46,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 08:37:46,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:46,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:46,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:46,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:37:46,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:46,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:37:46,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:46,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:46,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:37:46,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:46,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 08:37:46,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:46,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:37:46,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:46,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:46,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:46,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:37:46,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:46,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:37:46,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:46,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:46,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:46,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:46,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:46,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:46,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 08:37:46,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:46,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:46,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:46,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:37:46,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:46,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:37:46,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:46,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:46,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:37:46,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:46,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:37:46,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:46,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 08:37:46,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:46,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:46,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:46,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:37:46,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:46,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:37:46,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:46,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:46,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:37:46,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:46,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:37:46,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:46,269 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 08:37:46,269 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1279176843] [2020-09-25 08:37:46,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:37:46,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 08:37:46,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213790889] [2020-09-25 08:37:46,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:37:46,271 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:37:46,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:37:46,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:37:46,272 INFO L87 Difference]: Start difference. First operand 291 states and 317 transitions. Second operand 7 states. [2020-09-25 08:37:46,941 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:37:48,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:37:48,686 INFO L93 Difference]: Finished difference Result 724 states and 910 transitions. [2020-09-25 08:37:48,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 08:37:48,687 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 171 [2020-09-25 08:37:48,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:37:48,694 INFO L225 Difference]: With dead ends: 724 [2020-09-25 08:37:48,694 INFO L226 Difference]: Without dead ends: 721 [2020-09-25 08:37:48,695 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2020-09-25 08:37:48,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2020-09-25 08:37:48,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 390. [2020-09-25 08:37:48,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2020-09-25 08:37:48,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 432 transitions. [2020-09-25 08:37:48,772 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 432 transitions. Word has length 171 [2020-09-25 08:37:48,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:37:48,773 INFO L479 AbstractCegarLoop]: Abstraction has 390 states and 432 transitions. [2020-09-25 08:37:48,773 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:37:48,773 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 432 transitions. [2020-09-25 08:37:48,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-09-25 08:37:48,776 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:37:48,777 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] [2020-09-25 08:37:48,777 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:37:48,777 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:37:48,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:37:48,778 INFO L82 PathProgramCache]: Analyzing trace with hash -785143487, now seen corresponding path program 1 times [2020-09-25 08:37:48,778 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:37:48,778 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1963738925] [2020-09-25 08:37:48,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:37:48,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:48,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:49,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:49,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:50,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:50,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:53,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:53,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-09-25 08:37:53,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:37:53,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 08:37:53,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:53,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:53,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:37:53,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 160 [2020-09-25 08:37:53,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 08:37:53,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:37:54,134 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:37:54,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:37:54,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:54,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:54,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:54,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:37:54,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:54,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-25 08:37:54,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:54,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:54,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:54,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:54,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:54,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:54,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:37:54,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:54,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:54,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:54,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:37:54,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:54,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:37:54,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:54,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:54,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:54,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:54,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:54,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:54,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:37:54,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:54,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:54,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:54,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:37:54,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:54,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:37:54,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:54,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:54,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:54,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:54,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:54,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:37:54,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:37:54,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:54,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:54,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:54,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:37:54,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:54,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:37:54,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:54,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:54,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:54,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:54,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:54,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:37:54,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:37:54,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:54,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:54,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:54,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:37:54,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:54,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:37:54,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:54,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:54,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:54,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:54,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:54,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:37:54,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:37:54,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:54,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:54,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:54,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:37:54,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:54,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:37:54,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:54,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:54,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:54,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:54,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:54,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:54,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 08:37:54,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:54,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:54,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:54,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:37:54,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:54,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:37:54,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:54,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:54,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:54,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:54,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:54,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:54,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 08:37:54,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:54,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:54,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:54,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:54,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 08:37:54,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:37:54,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-09-25 08:37:54,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:54,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:54,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:37:54,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:37:54,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 08:37:54,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:37:54,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:37:54,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:54,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:54,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:54,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:54,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:37:54,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:37:54,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:37:54,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:54,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:54,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:37:54,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 08:37:54,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 08:37:54,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:54,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:37:54,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:54,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:54,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:54,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:37:54,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:54,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:37:54,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:54,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:54,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:37:54,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:54,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:37:54,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:37:54,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 08:37:54,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:54,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:54,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:54,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 08:37:54,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:54,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 08:37:54,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:54,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:54,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:37:54,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 08:37:54,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 08:37:54,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:37:54,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:37:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:54,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:54,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:54,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:37:54,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:54,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:37:54,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:54,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:54,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:54,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:54,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:54,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:54,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 08:37:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:54,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:54,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:54,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:37:54,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:54,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:37:54,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:54,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:54,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:37:54,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:54,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:37:54,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:54,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-09-25 08:37:54,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:54,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:54,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:54,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:37:54,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:54,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:37:54,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:54,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:54,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:54,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 08:37:54,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:54,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:54,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:37:54,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:54,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:54,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:54,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:37:54,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:54,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:37:54,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:54,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:54,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:54,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:37:54,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:54,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:37:54,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2020-09-25 08:37:54,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:54,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:54,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:54,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:37:54,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:54,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:37:54,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:54,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:54,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:54,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:37:54,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:54,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:37:54,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-09-25 08:37:54,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:37:54,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:37:54,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:37:54,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:37:54,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:37:54,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:37:54,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:37:54,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:37:54,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:37:54,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:37:54,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:37:54,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:37:54,817 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 32 proven. 7 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-25 08:37:54,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1963738925] [2020-09-25 08:37:54,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:37:54,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 08:37:54,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326366974] [2020-09-25 08:37:54,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 08:37:54,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:37:54,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 08:37:54,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-09-25 08:37:54,820 INFO L87 Difference]: Start difference. First operand 390 states and 432 transitions. Second operand 13 states. [2020-09-25 08:37:55,414 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:37:56,704 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:37:57,012 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:37:57,384 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:37:57,697 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:37:57,995 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:37:58,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:37:58,325 INFO L93 Difference]: Finished difference Result 595 states and 695 transitions. [2020-09-25 08:37:58,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 08:37:58,325 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 225 [2020-09-25 08:37:58,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:37:58,326 INFO L225 Difference]: With dead ends: 595 [2020-09-25 08:37:58,327 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 08:37:58,331 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=206, Invalid=550, Unknown=0, NotChecked=0, Total=756 [2020-09-25 08:37:58,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 08:37:58,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 08:37:58,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 08:37:58,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 08:37:58,332 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 225 [2020-09-25 08:37:58,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:37:58,333 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 08:37:58,333 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 08:37:58,333 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 08:37:58,333 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 08:37:58,333 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 08:37:58,336 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.