/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:19:26,445 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:19:26,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:19:26,475 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:19:26,475 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:19:26,479 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:19:26,480 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:19:26,484 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:19:26,489 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:19:26,491 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:19:26,492 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:19:26,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:19:26,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:19:26,496 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:19:26,498 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:19:26,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:19:26,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:19:26,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:19:26,502 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:19:26,504 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:19:26,506 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:19:26,507 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:19:26,508 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:19:26,509 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:19:26,512 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:19:26,512 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:19:26,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:19:26,513 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:19:26,514 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:19:26,515 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:19:26,515 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:19:26,516 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:19:26,517 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:19:26,518 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:19:26,519 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:19:26,520 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:19:26,520 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:19:26,521 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:19:26,521 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:19:26,522 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:19:26,523 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:19:26,524 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 05:19:26,559 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:19:26,559 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:19:26,560 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:19:26,561 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:19:26,561 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:19:26,561 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:19:26,561 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:19:26,562 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:19:26,562 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:19:26,562 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:19:26,562 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:19:26,562 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:19:26,563 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:19:26,563 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:19:26,563 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:19:26,563 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:19:26,563 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:19:26,564 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:19:26,564 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:19:26,564 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:19:26,564 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:19:26,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:19:26,565 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:19:26,565 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:19:26,565 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:19:26,565 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:19:26,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:19:26,566 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:19:26,566 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:19:26,566 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:19:27,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:19:27,078 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:19:27,082 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:19:27,084 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:19:27,084 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:19:27,086 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product56.cil.c [2020-09-25 05:19:27,182 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5c1c79feb/daf55dad60c64f2f9f6291496ecd49dc/FLAGeab1545a9 [2020-09-25 05:19:27,800 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:19:27,801 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product56.cil.c [2020-09-25 05:19:27,822 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5c1c79feb/daf55dad60c64f2f9f6291496ecd49dc/FLAGeab1545a9 [2020-09-25 05:19:28,066 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5c1c79feb/daf55dad60c64f2f9f6291496ecd49dc [2020-09-25 05:19:28,081 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:19:28,087 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:19:28,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:19:28,088 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:19:28,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:19:28,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:19:28" (1/1) ... [2020-09-25 05:19:28,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b54cc27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:19:28, skipping insertion in model container [2020-09-25 05:19:28,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:19:28" (1/1) ... [2020-09-25 05:19:28,111 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:19:28,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:19:28,606 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:19:28,719 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:19:28,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:19:28,850 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:19:28,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:19:28 WrapperNode [2020-09-25 05:19:28,851 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:19:28,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:19:28,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:19:28,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:19:28,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:19:28" (1/1) ... [2020-09-25 05:19:28,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:19:28" (1/1) ... [2020-09-25 05:19:28,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:19:28" (1/1) ... [2020-09-25 05:19:28,889 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:19:28" (1/1) ... [2020-09-25 05:19:28,921 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:19:28" (1/1) ... [2020-09-25 05:19:28,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:19:28" (1/1) ... [2020-09-25 05:19:28,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:19:28" (1/1) ... [2020-09-25 05:19:28,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:19:28,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:19:28,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:19:28,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:19:28,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:19:28" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:19:29,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:19:29,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:19:29,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 05:19:29,057 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 05:19:29,057 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 05:19:29,057 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 05:19:29,058 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 05:19:29,058 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 05:19:29,058 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 05:19:29,058 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 05:19:29,058 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 05:19:29,059 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 05:19:29,059 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 05:19:29,059 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 05:19:29,059 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 05:19:29,059 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 05:19:29,060 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 05:19:29,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 05:19:29,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 05:19:29,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 05:19:29,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 05:19:29,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 05:19:29,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 05:19:29,061 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 05:19:29,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 05:19:29,061 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 05:19:29,062 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 05:19:29,062 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 05:19:29,062 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 05:19:29,062 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:19:29,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 05:19:29,062 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 05:19:29,063 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 05:19:29,063 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 05:19:29,063 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 05:19:29,063 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 05:19:29,063 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 05:19:29,063 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 05:19:29,064 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 05:19:29,064 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 05:19:29,064 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 05:19:29,064 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 05:19:29,064 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 05:19:29,064 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:19:29,065 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:19:29,065 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 05:19:29,065 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 05:19:29,065 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 05:19:29,065 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 05:19:29,065 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 05:19:29,066 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 05:19:29,066 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 05:19:29,066 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 05:19:29,066 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 05:19:29,066 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 05:19:29,066 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 05:19:29,067 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 05:19:29,067 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 05:19:29,067 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 05:19:29,067 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 05:19:29,067 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 05:19:29,067 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 05:19:29,068 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 05:19:29,068 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 05:19:29,068 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 05:19:29,068 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 05:19:29,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:19:29,068 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 05:19:29,068 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:19:29,069 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:19:29,069 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 05:19:29,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:19:29,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:19:29,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:19:29,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:19:29,070 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 05:19:29,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:19:29,070 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 05:19:29,070 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 05:19:29,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:19:29,070 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 05:19:29,071 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 05:19:29,071 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 05:19:29,071 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 05:19:29,071 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 05:19:29,071 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 05:19:29,071 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 05:19:29,072 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 05:19:29,072 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 05:19:29,072 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 05:19:29,072 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 05:19:29,072 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 05:19:29,072 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 05:19:29,073 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 05:19:29,073 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 05:19:29,073 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:19:29,073 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 05:19:29,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:19:29,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 05:19:29,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:19:30,332 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:19:30,332 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 05:19:30,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:19:30 BoogieIcfgContainer [2020-09-25 05:19:30,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:19:30,342 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:19:30,342 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:19:30,346 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:19:30,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:19:28" (1/3) ... [2020-09-25 05:19:30,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e65c4e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:19:30, skipping insertion in model container [2020-09-25 05:19:30,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:19:28" (2/3) ... [2020-09-25 05:19:30,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e65c4e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:19:30, skipping insertion in model container [2020-09-25 05:19:30,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:19:30" (3/3) ... [2020-09-25 05:19:30,351 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product56.cil.c [2020-09-25 05:19:30,365 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:19:30,378 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:19:30,403 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:19:30,439 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:19:30,439 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:19:30,439 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:19:30,440 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:19:30,440 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:19:30,440 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:19:30,440 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:19:30,440 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:19:30,474 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states. [2020-09-25 05:19:30,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 05:19:30,494 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:19:30,496 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:19:30,496 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:19:30,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:19:30,506 INFO L82 PathProgramCache]: Analyzing trace with hash -1566233941, now seen corresponding path program 1 times [2020-09-25 05:19:30,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:19:30,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [373579386] [2020-09-25 05:19:30,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:19:30,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:31,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:31,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:32,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:33,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:36,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:36,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 05:19:36,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:19:36,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5066 [2020-09-25 05:19:36,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:36,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:36,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:36,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 05:19:36,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:36,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-25 05:19:36,555 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:19:36,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:19:36,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:36,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:36,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:36,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:19:36,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:36,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-25 05:19:36,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:36,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:36,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:36,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:36,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:36,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:36,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:19:36,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:36,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:36,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:36,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:36,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:36,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:19:36,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:36,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:36,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:36,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:36,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:36,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:36,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:19:36,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:36,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:36,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:36,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:36,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:36,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:19:36,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:36,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:36,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:36,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:36,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:36,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:36,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:19:36,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:36,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:36,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:36,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:36,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:36,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:19:36,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:36,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:36,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:36,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:36,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:36,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:36,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:19:36,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:36,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:36,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:36,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:36,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:36,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:19:36,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:36,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:36,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:36,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:36,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:36,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:36,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 05:19:36,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:36,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:36,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:36,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:36,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:36,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:19:36,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:36,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:36,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:36,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:19:36,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:36,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:36,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 05:19:36,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:36,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:36,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:36,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:36,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:36,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:19:36,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:36,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:36,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:36,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:19:36,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:36,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:36,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:19:36,900 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [373579386] [2020-09-25 05:19:36,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:19:36,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:19:36,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320177104] [2020-09-25 05:19:36,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:19:36,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:19:36,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:19:36,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:19:36,935 INFO L87 Difference]: Start difference. First operand 347 states. Second operand 3 states. [2020-09-25 05:19:38,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:19:38,661 INFO L93 Difference]: Finished difference Result 564 states and 670 transitions. [2020-09-25 05:19:38,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:19:38,664 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 05:19:38,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:19:38,688 INFO L225 Difference]: With dead ends: 564 [2020-09-25 05:19:38,688 INFO L226 Difference]: Without dead ends: 342 [2020-09-25 05:19:38,696 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:19:38,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-09-25 05:19:38,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 296. [2020-09-25 05:19:38,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2020-09-25 05:19:38,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 324 transitions. [2020-09-25 05:19:38,870 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 324 transitions. Word has length 142 [2020-09-25 05:19:38,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:19:38,872 INFO L479 AbstractCegarLoop]: Abstraction has 296 states and 324 transitions. [2020-09-25 05:19:38,872 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:19:38,872 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 324 transitions. [2020-09-25 05:19:38,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 05:19:38,887 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:19:38,887 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] [2020-09-25 05:19:38,890 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:19:38,890 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:19:38,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:19:38,891 INFO L82 PathProgramCache]: Analyzing trace with hash -524191348, now seen corresponding path program 1 times [2020-09-25 05:19:38,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:19:38,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2022841070] [2020-09-25 05:19:38,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:19:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:39,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:39,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:40,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:41,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:42,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:43,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:43,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 05:19:43,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:19:43,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 05:19:43,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:43,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:43,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:19:43,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 05:19:43,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:19:43,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:44,245 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:19:44,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:19:44,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:44,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:44,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:44,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:19:44,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:44,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-25 05:19:44,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:44,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:44,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:44,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:44,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:44,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:44,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:19:44,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:44,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:44,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:44,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:44,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:44,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:19:44,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:44,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:44,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:44,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:44,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:44,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:44,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:19:44,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:44,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:44,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:44,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:44,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:44,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:19:44,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:44,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:44,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:44,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:44,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:44,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:44,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:19:44,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:44,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:44,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:44,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:44,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:44,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:19:44,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:44,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:44,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:44,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:44,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:44,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:44,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:19:44,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:44,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:44,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:44,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:44,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:44,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:19:44,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:44,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:44,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:44,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:44,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:44,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:44,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 05:19:44,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:44,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:44,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:44,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:44,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:44,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:19:44,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:44,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:44,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:44,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:19:44,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:44,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:44,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 05:19:44,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:44,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:44,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:44,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:44,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:44,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:19:44,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:44,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:44,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:44,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:19:44,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:44,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:44,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:19:44,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2022841070] [2020-09-25 05:19:44,515 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:19:44,515 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:19:44,516 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729872503] [2020-09-25 05:19:44,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:19:44,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:19:44,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:19:44,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:19:44,519 INFO L87 Difference]: Start difference. First operand 296 states and 324 transitions. Second operand 4 states. [2020-09-25 05:19:45,142 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:19:46,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:19:46,493 INFO L93 Difference]: Finished difference Result 471 states and 533 transitions. [2020-09-25 05:19:46,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 05:19:46,494 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 05:19:46,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:19:46,499 INFO L225 Difference]: With dead ends: 471 [2020-09-25 05:19:46,499 INFO L226 Difference]: Without dead ends: 325 [2020-09-25 05:19:46,501 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:19:46,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-09-25 05:19:46,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 286. [2020-09-25 05:19:46,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-09-25 05:19:46,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 311 transitions. [2020-09-25 05:19:46,548 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 311 transitions. Word has length 143 [2020-09-25 05:19:46,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:19:46,549 INFO L479 AbstractCegarLoop]: Abstraction has 286 states and 311 transitions. [2020-09-25 05:19:46,549 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:19:46,549 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 311 transitions. [2020-09-25 05:19:46,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 05:19:46,551 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:19:46,551 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] [2020-09-25 05:19:46,551 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:19:46,552 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:19:46,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:19:46,552 INFO L82 PathProgramCache]: Analyzing trace with hash 2075975327, now seen corresponding path program 1 times [2020-09-25 05:19:46,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:19:46,553 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1804206576] [2020-09-25 05:19:46,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:19:46,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:46,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:46,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:47,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:49,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:51,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:51,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 05:19:51,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:19:51,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 05:19:51,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:51,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:51,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:19:51,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 05:19:51,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:19:51,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:52,024 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:19:52,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:19:52,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:52,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:52,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:52,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:19:52,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:52,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-09-25 05:19:52,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:52,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:52,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:52,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:52,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:52,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:52,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:19:52,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:52,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:52,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:52,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:52,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:52,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:19:52,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:52,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:52,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:52,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:52,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:52,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:52,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:19:52,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:52,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:52,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:52,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:52,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:52,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:19:52,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:52,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:52,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:52,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:52,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:52,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:52,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:19:52,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:52,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:52,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:52,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:52,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:52,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:19:52,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:52,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:52,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:52,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:52,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:52,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:52,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:19:52,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:52,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:52,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:52,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:19:52,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:52,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:19:52,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:52,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:52,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:52,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:52,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:52,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:52,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 05:19:52,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:52,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:52,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:52,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:19:52,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:52,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:19:52,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:52,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:52,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:19:52,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:19:52,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:19:52,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:52,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 05:19:52,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:52,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:52,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:52,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:52,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:52,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:19:52,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:52,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:52,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:52,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:19:52,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:52,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:52,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 05:19:52,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:52,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:52,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:19:52,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:19:52,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:19:52,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:19:52,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:19:52,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:19:52,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:19:52,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:19:52,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:19:52,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:19:52,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:19:52,320 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1804206576] [2020-09-25 05:19:52,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:19:52,321 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 05:19:52,321 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522744337] [2020-09-25 05:19:52,322 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:19:52,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:19:52,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:19:52,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:19:52,324 INFO L87 Difference]: Start difference. First operand 286 states and 311 transitions. Second operand 5 states. [2020-09-25 05:19:52,861 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:19:55,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:19:55,380 INFO L93 Difference]: Finished difference Result 712 states and 826 transitions. [2020-09-25 05:19:55,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:19:55,381 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 05:19:55,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:19:55,387 INFO L225 Difference]: With dead ends: 712 [2020-09-25 05:19:55,387 INFO L226 Difference]: Without dead ends: 536 [2020-09-25 05:19:55,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:19:55,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2020-09-25 05:19:55,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 452. [2020-09-25 05:19:55,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452 states. [2020-09-25 05:19:55,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 503 transitions. [2020-09-25 05:19:55,465 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 503 transitions. Word has length 156 [2020-09-25 05:19:55,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:19:55,465 INFO L479 AbstractCegarLoop]: Abstraction has 452 states and 503 transitions. [2020-09-25 05:19:55,466 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:19:55,466 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 503 transitions. [2020-09-25 05:19:55,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 05:19:55,469 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:19:55,469 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] [2020-09-25 05:19:55,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:19:55,469 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:19:55,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:19:55,470 INFO L82 PathProgramCache]: Analyzing trace with hash 629376790, now seen corresponding path program 1 times [2020-09-25 05:19:55,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:19:55,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1255565863] [2020-09-25 05:19:55,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:19:55,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:19:55,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:56,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:56,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:19:59,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:00,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:00,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 05:20:00,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:20:00,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-09-25 05:20:00,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:00,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:00,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:20:00,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-25 05:20:00,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 05:20:00,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:20:00,936 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:20:00,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:20:00,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:00,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:01,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:01,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:20:01,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:20:01,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-25 05:20:01,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:01,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:01,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:20:01,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:20:01,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:20:01,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:20:01,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:20:01,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:01,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:01,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:01,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:20:01,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:20:01,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:20:01,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:01,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:01,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:20:01,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:20:01,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:20:01,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:20:01,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:20:01,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:01,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:01,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:01,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:20:01,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:20:01,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:20:01,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:01,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:01,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:20:01,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:20:01,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:20:01,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:20:01,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:20:01,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:01,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:01,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:01,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:20:01,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:20:01,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:20:01,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:01,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:01,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:20:01,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:20:01,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:20:01,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:20:01,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:20:01,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:01,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:01,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:01,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:20:01,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:20:01,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:20:01,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:01,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:01,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:20:01,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:20:01,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:20:01,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:20:01,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 05:20:01,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:01,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:01,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:01,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:20:01,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:20:01,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:20:01,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:01,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:01,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:20:01,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:20:01,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:20:01,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:20:01,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 05:20:01,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:01,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:01,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:01,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:20:01,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:20:01,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:20:01,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:01,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:01,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:20:01,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:20:01,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:20:01,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:20:01,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 05:20:01,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:01,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:01,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:01,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:20:01,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:20:01,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 05:20:01,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:01,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:01,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:20:01,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:20:01,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:20:01,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:20:01,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:20:01,318 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1255565863] [2020-09-25 05:20:01,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:20:01,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 05:20:01,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680001579] [2020-09-25 05:20:01,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 05:20:01,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:20:01,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 05:20:01,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:20:01,321 INFO L87 Difference]: Start difference. First operand 452 states and 503 transitions. Second operand 9 states. [2020-09-25 05:20:01,861 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:20:03,304 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:20:03,659 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 05:20:04,001 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:20:04,330 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:20:04,651 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:20:05,448 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:20:05,798 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:20:06,149 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:20:07,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:20:07,493 INFO L93 Difference]: Finished difference Result 1065 states and 1275 transitions. [2020-09-25 05:20:07,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 05:20:07,494 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-25 05:20:07,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:20:07,501 INFO L225 Difference]: With dead ends: 1065 [2020-09-25 05:20:07,501 INFO L226 Difference]: Without dead ends: 723 [2020-09-25 05:20:07,503 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 05:20:07,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2020-09-25 05:20:07,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 646. [2020-09-25 05:20:07,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 646 states. [2020-09-25 05:20:07,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 736 transitions. [2020-09-25 05:20:07,616 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 736 transitions. Word has length 161 [2020-09-25 05:20:07,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:20:07,617 INFO L479 AbstractCegarLoop]: Abstraction has 646 states and 736 transitions. [2020-09-25 05:20:07,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 05:20:07,617 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 736 transitions. [2020-09-25 05:20:07,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-25 05:20:07,620 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:20:07,620 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:20:07,621 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:20:07,621 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:20:07,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:20:07,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1326013704, now seen corresponding path program 1 times [2020-09-25 05:20:07,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:20:07,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [203129547] [2020-09-25 05:20:07,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:20:07,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:07,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:08,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:12,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:12,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-09-25 05:20:12,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:20:12,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 05:20:12,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:12,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:12,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:20:12,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 188 [2020-09-25 05:20:12,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 05:20:12,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:20:12,999 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:20:12,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:20:13,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:13,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:13,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:13,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:20:13,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:20:13,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-25 05:20:13,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:13,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:13,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:20:13,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:20:13,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:20:13,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:20:13,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:20:13,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:13,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:13,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:13,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:20:13,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:20:13,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:20:13,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:13,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:13,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:20:13,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:20:13,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:20:13,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:20:13,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:20:13,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:13,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:13,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:13,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:20:13,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:20:13,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:20:13,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:13,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:13,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:20:13,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:20:13,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:20:13,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:20:13,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:20:13,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:13,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:13,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:13,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:20:13,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:20:13,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:20:13,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:13,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:13,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:20:13,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:20:13,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:20:13,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:20:13,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:20:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:13,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:13,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:13,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:20:13,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:20:13,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:20:13,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:13,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:13,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:20:13,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:20:13,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:20:13,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:20:13,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 05:20:13,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:13,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:13,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:13,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:20:13,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:20:13,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:20:13,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:13,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:13,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:20:13,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:20:13,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:20:13,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:20:13,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 05:20:13,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:13,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:13,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:13,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 05:20:13,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:20:13,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 05:20:13,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:13,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:13,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:20:13,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 05:20:13,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 05:20:13,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:20:13,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:20:13,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:13,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:13,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:13,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 05:20:13,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:20:13,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-25 05:20:13,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:13,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:13,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:20:13,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 05:20:13,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 05:20:13,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:20:13,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:20:13,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:13,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:13,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:13,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 05:20:13,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:20:13,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 05:20:13,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:13,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:13,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:20:13,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 05:20:13,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 05:20:13,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:20:13,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:20:13,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:13,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:13,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:13,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 05:20:13,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:20:13,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 05:20:13,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:13,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:13,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:20:13,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:20:13,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 05:20:13,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:20:13,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:20:13,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:13,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:13,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:13,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:20:13,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:20:13,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:20:13,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:13,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:13,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:20:13,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:20:13,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:20:13,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:20:13,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 05:20:13,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:13,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:13,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:13,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:20:13,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:20:13,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:20:13,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:13,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:13,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:20:13,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 05:20:13,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:20:13,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:20:13,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-25 05:20:13,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:13,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:13,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:13,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:20:13,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:20:13,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:20:13,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:13,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:13,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:20:13,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:20:13,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:20:13,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:20:13,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-25 05:20:13,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:20:13,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:20:13,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:20:13,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:20:13,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:20:13,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:20:13,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:20:13,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:20:13,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:20:13,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:20:13,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:20:13,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:20:13,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:20:13,576 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [203129547] [2020-09-25 05:20:13,576 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:20:13,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 05:20:13,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571980538] [2020-09-25 05:20:13,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 05:20:13,577 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:20:13,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 05:20:13,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 05:20:13,578 INFO L87 Difference]: Start difference. First operand 646 states and 736 transitions. Second operand 10 states. [2020-09-25 05:20:15,221 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:20:15,552 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 189