/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 --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 interpolation-heuristic=FIRST --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_spec3_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:09:51,400 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:09:51,404 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:09:51,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:09:51,432 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:09:51,433 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:09:51,435 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:09:51,437 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:09:51,439 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:09:51,440 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:09:51,441 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:09:51,443 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:09:51,443 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:09:51,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:09:51,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:09:51,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:09:51,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:09:51,449 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:09:51,451 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:09:51,453 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:09:51,455 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:09:51,457 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:09:51,458 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:09:51,459 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:09:51,462 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:09:51,462 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:09:51,462 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:09:51,464 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:09:51,464 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:09:51,465 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:09:51,465 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:09:51,466 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:09:51,467 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:09:51,470 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:09:51,473 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:09:51,473 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:09:51,474 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:09:51,474 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:09:51,474 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:09:51,475 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:09:51,477 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:09:51,478 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 [2020-09-21 11:09:51,535 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:09:51,539 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:09:51,540 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:09:51,541 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:09:51,543 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:09:51,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:09:51,543 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:09:51,544 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:09:51,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:09:51,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:09:51,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:09:51,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:09:51,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:09:51,545 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:09:51,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:09:51,545 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:09:51,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:09:51,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:09:51,547 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:09:51,548 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:09:51,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:09:51,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:09:51,548 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:09:51,548 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:09:51,549 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:09:51,549 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:09:51,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:09:51,549 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:09:51,549 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:09:51,550 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.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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:09:51,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:09:52,020 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:09:52,027 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:09:52,029 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:09:52,029 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:09:52,032 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product18.cil.c [2020-09-21 11:09:52,110 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c4fac62f8/f5ea2b21b3a848b8a6e3665c37c693ff/FLAG39606bde0 [2020-09-21 11:09:52,669 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:09:52,670 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product18.cil.c [2020-09-21 11:09:52,687 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c4fac62f8/f5ea2b21b3a848b8a6e3665c37c693ff/FLAG39606bde0 [2020-09-21 11:09:52,952 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c4fac62f8/f5ea2b21b3a848b8a6e3665c37c693ff [2020-09-21 11:09:52,964 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:09:52,969 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:09:52,970 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:09:52,971 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:09:52,976 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:09:52,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:09:52" (1/1) ... [2020-09-21 11:09:52,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22589b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:52, skipping insertion in model container [2020-09-21 11:09:52,984 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:09:52" (1/1) ... [2020-09-21 11:09:52,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:09:53,047 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:09:53,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:09:53,529 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:09:53,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:09:53,661 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:09:53,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:53 WrapperNode [2020-09-21 11:09:53,662 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:09:53,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:09:53,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:09:53,663 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:09:53,678 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:53" (1/1) ... [2020-09-21 11:09:53,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:53" (1/1) ... [2020-09-21 11:09:53,701 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:53" (1/1) ... [2020-09-21 11:09:53,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:53" (1/1) ... [2020-09-21 11:09:53,764 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:53" (1/1) ... [2020-09-21 11:09:53,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:53" (1/1) ... [2020-09-21 11:09:53,789 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:53" (1/1) ... [2020-09-21 11:09:53,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:09:53,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:09:53,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:09:53,798 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:09:53,800 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:53" (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 [2020-09-21 11:09:53,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:09:53,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:09:53,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:09:53,886 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:09:53,886 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:09:53,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:09:53,887 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:09:53,887 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:09:53,887 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:09:53,887 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:09:53,887 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:09:53,888 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:09:53,888 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:09:53,888 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:09:53,888 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-21 11:09:53,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:09:53,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:09:53,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:09:53,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:09:53,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:09:53,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:09:53,890 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:09:53,890 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 11:09:53,890 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:09:53,890 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:09:53,891 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:09:53,891 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:09:53,891 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:09:53,891 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:09:53,891 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-21 11:09:53,891 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-21 11:09:53,892 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:09:53,892 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:09:53,892 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:09:53,892 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:09:53,892 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:09:53,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:09:53,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:09:53,893 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:09:53,893 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:09:53,893 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:09:53,893 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:09:53,894 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:09:53,894 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:09:53,894 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:09:53,894 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:09:53,894 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:09:53,894 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:09:53,895 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:09:53,895 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:09:53,895 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:09:53,895 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:09:53,895 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:09:53,895 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:09:53,896 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:09:53,896 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:09:53,896 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:09:53,896 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:09:53,896 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-21 11:09:53,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:09:53,897 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:09:53,897 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:09:53,897 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:09:53,897 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:09:53,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:09:53,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:09:53,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:09:53,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:09:53,898 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:09:53,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:09:53,898 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:09:53,898 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:09:53,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:09:53,899 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:09:53,899 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:09:53,899 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:09:53,899 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:09:53,899 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:09:53,899 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:09:53,900 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-21 11:09:53,900 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:09:53,900 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:09:53,902 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 11:09:53,902 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-21 11:09:53,902 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:09:53,902 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:09:53,902 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:09:53,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:09:53,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:09:53,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:09:54,969 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:09:54,969 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:09:54,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:09:54 BoogieIcfgContainer [2020-09-21 11:09:54,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:09:54,977 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:09:54,977 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:09:54,980 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:09:54,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:09:52" (1/3) ... [2020-09-21 11:09:54,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61f89c65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:09:54, skipping insertion in model container [2020-09-21 11:09:54,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:53" (2/3) ... [2020-09-21 11:09:54,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61f89c65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:09:54, skipping insertion in model container [2020-09-21 11:09:54,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:09:54" (3/3) ... [2020-09-21 11:09:54,984 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product18.cil.c [2020-09-21 11:09:54,996 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:09:55,006 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:09:55,028 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:09:55,055 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:09:55,055 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:09:55,055 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:09:55,056 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:09:55,056 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:09:55,056 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:09:55,056 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:09:55,056 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:09:55,080 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states. [2020-09-21 11:09:55,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 11:09:55,090 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:55,091 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:09:55,092 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:55,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:55,099 INFO L82 PathProgramCache]: Analyzing trace with hash 144675927, now seen corresponding path program 1 times [2020-09-21 11:09:55,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:55,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [447812575] [2020-09-21 11:09:55,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:55,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:55,487 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:55,487 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:55,488 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:55,488 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:55,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-21 11:09:55,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:55,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:09:55,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:55,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:55,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:09:55,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:55,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:55,883 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:55,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:55,898 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:55,898 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:55,899 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:55,899 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:55,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:55,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:55,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:09:55,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:55,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:55,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:55,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:55,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:55,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:55,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:55,959 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:55,959 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:55,960 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:55,960 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:55,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:55,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:55,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:55,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:55,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:55,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:55,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:55,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:55,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:55,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:55,966 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:55,967 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:55,967 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:55,967 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:55,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:55,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:55,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:55,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:55,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:55,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:55,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:55,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:55,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:55,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:55,976 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:55,976 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:55,977 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:55,977 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:55,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:55,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:55,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:55,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:55,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:55,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:55,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:55,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:55,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:55,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:55,984 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:55,984 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:55,985 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:55,985 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:55,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:55,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:55,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:55,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:55,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:55,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:55,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:55,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:55,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:09:55,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:55,992 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:55,993 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:55,993 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:55,993 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:55,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:55,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:55,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:55,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:55,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:55,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:55,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:55,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:55,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:09:55,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:56,000 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:56,001 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:56,001 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:56,001 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:56,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:56,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:56,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:56,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:56,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:56,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:56,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:56,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:56,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:09:56,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:56,008 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:56,009 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:56,009 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:56,009 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:56,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:56,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:56,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:56,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:56,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:56,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:56,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:56,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:56,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:09:56,028 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [447812575] [2020-09-21 11:09:56,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:09:56,030 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:09:56,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477859561] [2020-09-21 11:09:56,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:09:56,038 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:56,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:09:56,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:09:56,061 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 3 states. [2020-09-21 11:09:57,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:09:57,078 INFO L93 Difference]: Finished difference Result 268 states and 351 transitions. [2020-09-21 11:09:57,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:09:57,080 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-09-21 11:09:57,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:09:57,098 INFO L225 Difference]: With dead ends: 268 [2020-09-21 11:09:57,098 INFO L226 Difference]: Without dead ends: 145 [2020-09-21 11:09:57,103 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:09:57,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-09-21 11:09:57,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 114. [2020-09-21 11:09:57,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-09-21 11:09:57,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 132 transitions. [2020-09-21 11:09:57,196 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 132 transitions. Word has length 52 [2020-09-21 11:09:57,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:09:57,197 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 132 transitions. [2020-09-21 11:09:57,197 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:09:57,197 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 132 transitions. [2020-09-21 11:09:57,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-21 11:09:57,202 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:57,202 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] [2020-09-21 11:09:57,202 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:09:57,202 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:57,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:57,203 INFO L82 PathProgramCache]: Analyzing trace with hash -274604967, now seen corresponding path program 1 times [2020-09-21 11:09:57,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:57,204 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [424139236] [2020-09-21 11:09:57,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:57,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:57,269 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:57,270 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:57,270 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:57,270 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:57,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-21 11:09:57,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:57,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:09:57,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:57,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:57,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:09:57,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:09:57,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:57,578 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:57,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:57,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:57,587 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:57,587 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:57,588 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:57,588 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:57,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:57,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:57,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:57,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:57,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:57,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:57,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:57,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:57,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:57,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:57,625 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:57,625 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:57,626 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:57,626 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:57,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:57,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:57,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:57,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:57,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:57,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:57,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:57,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:57,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:57,630 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:57,631 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:57,631 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:57,631 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:57,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:57,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:57,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:57,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:57,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:57,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:57,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:57,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:57,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:57,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:57,635 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:57,636 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:57,636 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:57,636 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:57,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:57,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:57,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:57,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:57,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:57,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:57,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:57,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:57,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:57,642 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:57,642 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:57,642 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:57,642 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:57,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:57,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:57,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:57,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:57,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:57,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:57,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:57,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:57,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:09:57,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:57,647 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:57,647 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:57,647 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:57,647 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:57,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:57,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:57,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:57,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:57,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:57,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:57,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:57,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:57,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:09:57,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:57,653 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:57,653 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:57,653 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:57,653 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:57,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:57,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:57,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:57,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:57,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:57,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:57,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:57,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:57,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:09:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:57,659 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:57,659 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:57,659 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:57,659 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:57,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:57,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:57,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:57,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:57,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:57,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:57,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:57,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:57,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:09:57,669 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [424139236] [2020-09-21 11:09:57,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:09:57,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:09:57,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186132321] [2020-09-21 11:09:57,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:09:57,672 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:57,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:09:57,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:09:57,673 INFO L87 Difference]: Start difference. First operand 114 states and 132 transitions. Second operand 4 states. [2020-09-21 11:09:58,080 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:09:58,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:09:58,813 INFO L93 Difference]: Finished difference Result 197 states and 238 transitions. [2020-09-21 11:09:58,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:09:58,814 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-09-21 11:09:58,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:09:58,817 INFO L225 Difference]: With dead ends: 197 [2020-09-21 11:09:58,817 INFO L226 Difference]: Without dead ends: 129 [2020-09-21 11:09:58,819 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:09:58,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-09-21 11:09:58,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 105. [2020-09-21 11:09:58,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-09-21 11:09:58,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 120 transitions. [2020-09-21 11:09:58,850 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 120 transitions. Word has length 53 [2020-09-21 11:09:58,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:09:58,851 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 120 transitions. [2020-09-21 11:09:58,851 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:09:58,851 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 120 transitions. [2020-09-21 11:09:58,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-21 11:09:58,853 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:58,853 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] [2020-09-21 11:09:58,854 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:09:58,854 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:58,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:58,854 INFO L82 PathProgramCache]: Analyzing trace with hash 245025236, now seen corresponding path program 1 times [2020-09-21 11:09:58,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:58,855 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [329267312] [2020-09-21 11:09:58,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:58,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:59,377 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:09:59,377 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:59,378 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:59,378 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:59,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-21 11:09:59,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:59,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 469 [2020-09-21 11:09:59,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:59,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:09:59,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:59,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-21 11:09:59,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:59,768 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:59,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:59,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:59,914 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:59,914 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:59,914 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:59,915 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:59,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:59,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:59,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-21 11:09:59,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:59,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:59,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:59,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:09:59,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:59,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:59,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:59,958 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:59,958 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:59,959 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:59,959 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:59,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:59,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:59,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:09:59,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:59,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:59,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:59,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:59,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:59,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:59,964 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:59,965 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:59,965 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:59,967 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:59,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:59,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:59,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:59,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:59,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:59,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:59,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:59,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:59,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:59,974 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:59,974 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:59,974 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:59,975 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:59,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:59,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:59,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:09:59,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:59,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:59,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:59,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:09:59,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:59,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:59,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:59,986 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:59,986 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:59,986 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:59,987 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:59,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:59,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:59,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:59,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:59,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:59,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:59,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:59,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:59,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:09:59,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:59,994 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:59,994 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:59,995 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:59,995 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:59,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:59,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:59,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:09:59,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:59,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:59,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:59,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:59,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:59,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:09:59,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:00,002 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:00,002 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:00,002 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:00,002 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:00,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:00,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:00,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:00,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:00,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:00,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:00,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:00,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:00,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-21 11:10:00,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:00,008 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:00,008 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:00,008 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:00,009 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:00,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:00,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:00,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:00,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:00,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:00,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:00,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:00,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:00,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:10:00,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [329267312] [2020-09-21 11:10:00,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:00,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:10:00,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101025080] [2020-09-21 11:10:00,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:10:00,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:00,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:10:00,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:10:00,022 INFO L87 Difference]: Start difference. First operand 105 states and 120 transitions. Second operand 4 states. [2020-09-21 11:10:00,347 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:01,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:01,079 INFO L93 Difference]: Finished difference Result 210 states and 256 transitions. [2020-09-21 11:10:01,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:10:01,080 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2020-09-21 11:10:01,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:01,083 INFO L225 Difference]: With dead ends: 210 [2020-09-21 11:10:01,084 INFO L226 Difference]: Without dead ends: 129 [2020-09-21 11:10:01,085 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:10:01,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-09-21 11:10:01,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 105. [2020-09-21 11:10:01,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-09-21 11:10:01,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 119 transitions. [2020-09-21 11:10:01,115 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 119 transitions. Word has length 58 [2020-09-21 11:10:01,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:01,115 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 119 transitions. [2020-09-21 11:10:01,115 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:10:01,115 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 119 transitions. [2020-09-21 11:10:01,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-09-21 11:10:01,120 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:01,121 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] [2020-09-21 11:10:01,123 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:10:01,124 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:01,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:01,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1490172925, now seen corresponding path program 1 times [2020-09-21 11:10:01,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:01,124 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [582532076] [2020-09-21 11:10:01,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:01,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:01,616 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:01,616 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:01,616 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:01,616 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:01,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-21 11:10:01,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:01,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 436 [2020-09-21 11:10:01,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:01,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:10:01,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:01,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-09-21 11:10:01,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:01,970 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:01,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:02,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:02,072 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:02,072 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:02,073 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:02,073 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:02,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:02,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:02,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-21 11:10:02,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:02,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:02,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:02,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:10:02,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:02,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:02,116 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:02,117 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:02,117 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:02,117 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:02,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:02,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:02,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:10:02,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:02,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:02,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:02,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:02,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:02,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:02,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:02,125 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:02,125 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:02,126 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:02,126 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:02,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:02,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:02,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:02,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:02,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:02,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:02,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:02,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:02,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:02,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:02,134 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:02,134 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:02,135 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:02,135 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:02,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:02,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:02,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:10:02,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:02,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:02,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:02,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:02,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:02,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:02,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:02,148 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:02,148 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:02,149 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:02,149 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:02,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:02,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:02,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:10:02,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:02,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:02,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:02,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:02,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:02,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 11:10:02,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:02,169 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:02,169 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:02,169 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:02,170 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:02,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:10:02,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:02,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:02,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:02,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:02,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:02,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:10:02,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:02,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:10:02,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:02,178 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:02,178 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:02,179 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:02,179 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:02,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:02,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:02,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:02,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:02,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:02,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:02,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:02,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:02,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-21 11:10:02,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:02,186 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:02,187 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:02,187 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:02,187 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:02,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:02,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:02,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:02,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:02,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:02,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:02,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:02,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:02,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-09-21 11:10:02,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:02,200 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:02,200 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:02,200 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:02,201 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:02,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:02,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:02,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:10:02,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:02,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:10:02,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:02,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:02,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:02,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-09-21 11:10:02,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:02,228 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:02,229 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:02,229 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:02,230 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:02,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:02,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:02,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:02,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:02,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:02,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:02,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:02,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:02,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:10:02,255 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [582532076] [2020-09-21 11:10:02,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:02,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:10:02,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220465486] [2020-09-21 11:10:02,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:10:02,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:02,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:10:02,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:10:02,258 INFO L87 Difference]: Start difference. First operand 105 states and 119 transitions. Second operand 8 states. [2020-09-21 11:10:02,709 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:04,214 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:10:04,613 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:10:04,921 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:10:05,237 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:05,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:05,998 INFO L93 Difference]: Finished difference Result 314 states and 408 transitions. [2020-09-21 11:10:05,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:10:05,999 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 66 [2020-09-21 11:10:06,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:06,004 INFO L225 Difference]: With dead ends: 314 [2020-09-21 11:10:06,004 INFO L226 Difference]: Without dead ends: 233 [2020-09-21 11:10:06,006 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:10:06,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2020-09-21 11:10:06,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 184. [2020-09-21 11:10:06,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-09-21 11:10:06,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 215 transitions. [2020-09-21 11:10:06,054 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 215 transitions. Word has length 66 [2020-09-21 11:10:06,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:06,055 INFO L479 AbstractCegarLoop]: Abstraction has 184 states and 215 transitions. [2020-09-21 11:10:06,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:10:06,055 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 215 transitions. [2020-09-21 11:10:06,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-21 11:10:06,058 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:06,058 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] [2020-09-21 11:10:06,058 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:10:06,058 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:06,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:06,059 INFO L82 PathProgramCache]: Analyzing trace with hash -123378135, now seen corresponding path program 1 times [2020-09-21 11:10:06,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:06,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [243758380] [2020-09-21 11:10:06,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:06,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:06,331 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:06,332 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:06,332 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:06,332 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:06,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-09-21 11:10:06,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:06,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-09-21 11:10:06,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:06,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 11:10:06,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:06,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 11:10:06,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:06,615 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:06,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:06,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:06,680 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:06,681 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:06,681 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:06,681 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:06,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:06,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:06,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-21 11:10:06,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:06,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:06,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:06,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:10:06,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:06,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:06,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:06,717 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:06,717 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:06,717 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:06,717 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:06,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:06,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:06,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:06,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:06,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:06,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:06,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:06,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:06,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:06,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:06,722 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:06,722 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:06,722 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:06,722 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:06,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:06,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:06,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:06,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:06,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:06,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:06,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:06,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:06,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:06,727 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:06,728 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:06,728 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:06,728 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:06,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:06,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:06,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:06,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:06,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:06,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:06,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:06,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:06,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:06,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:06,733 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:06,734 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:06,734 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:06,734 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:06,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:06,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:06,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:06,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:06,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:06,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:06,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:06,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:06,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 11:10:06,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:06,748 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:06,748 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:06,748 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:06,748 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:06,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:06,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:06,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:06,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:06,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:06,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:06,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:06,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:06,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:10:06,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:06,762 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:06,762 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:06,763 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:06,763 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:06,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:10:06,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:06,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:06,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:06,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:06,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:10:06,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:06,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:06,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:10:06,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:06,767 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:06,768 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:06,768 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:06,768 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:06,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:06,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:06,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:06,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:06,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:06,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:06,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:06,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:06,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-21 11:10:06,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:06,773 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:06,773 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:06,773 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:06,773 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:06,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:06,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:06,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:06,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:06,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:06,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:06,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:06,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:06,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-21 11:10:06,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:06,777 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:06,778 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:06,778 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:06,778 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:06,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:06,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:06,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:06,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:06,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:06,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:06,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:06,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:06,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-21 11:10:06,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:06,782 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:06,782 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:06,782 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:06,783 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:06,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:06,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:06,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:10:06,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:06,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:06,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:06,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:06,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:06,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:10:06,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [243758380] [2020-09-21 11:10:06,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:06,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 11:10:06,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156337216] [2020-09-21 11:10:06,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 11:10:06,795 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:06,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 11:10:06,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:10:06,796 INFO L87 Difference]: Start difference. First operand 184 states and 215 transitions. Second operand 6 states. [2020-09-21 11:10:07,244 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:07,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:07,893 INFO L93 Difference]: Finished difference Result 306 states and 373 transitions. [2020-09-21 11:10:07,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 11:10:07,894 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 70 [2020-09-21 11:10:07,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:07,896 INFO L225 Difference]: With dead ends: 306 [2020-09-21 11:10:07,896 INFO L226 Difference]: Without dead ends: 146 [2020-09-21 11:10:07,897 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:10:07,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-09-21 11:10:07,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 133. [2020-09-21 11:10:07,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-09-21 11:10:07,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 148 transitions. [2020-09-21 11:10:07,930 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 148 transitions. Word has length 70 [2020-09-21 11:10:07,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:07,930 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 148 transitions. [2020-09-21 11:10:07,930 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 11:10:07,930 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 148 transitions. [2020-09-21 11:10:07,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-21 11:10:07,932 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:07,932 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] [2020-09-21 11:10:07,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:10:07,932 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:07,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:07,933 INFO L82 PathProgramCache]: Analyzing trace with hash 2126179389, now seen corresponding path program 1 times [2020-09-21 11:10:07,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:07,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [33857988] [2020-09-21 11:10:07,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:07,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:10:07,996 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:10:07,996 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:10:08,001 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:10:08,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:10:08 BoogieIcfgContainer [2020-09-21 11:10:08,028 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:10:08,030 INFO L168 Benchmark]: Toolchain (without parser) took 15064.03 ms. Allocated memory was 138.4 MB in the beginning and 454.6 MB in the end (delta: 316.1 MB). Free memory was 100.6 MB in the beginning and 284.3 MB in the end (delta: -183.7 MB). Peak memory consumption was 132.4 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:08,031 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-21 11:10:08,032 INFO L168 Benchmark]: CACSL2BoogieTranslator took 692.41 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 99.9 MB in the beginning and 172.1 MB in the end (delta: -72.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:08,033 INFO L168 Benchmark]: Boogie Preprocessor took 134.31 ms. Allocated memory is still 202.4 MB. Free memory was 172.1 MB in the beginning and 167.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:08,034 INFO L168 Benchmark]: RCFGBuilder took 1177.58 ms. Allocated memory was 202.4 MB in the beginning and 233.3 MB in the end (delta: 30.9 MB). Free memory was 167.9 MB in the beginning and 201.2 MB in the end (delta: -33.4 MB). Peak memory consumption was 87.6 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:08,035 INFO L168 Benchmark]: TraceAbstraction took 13051.41 ms. Allocated memory was 233.3 MB in the beginning and 454.6 MB in the end (delta: 221.2 MB). Free memory was 199.8 MB in the beginning and 284.3 MB in the end (delta: -84.5 MB). Peak memory consumption was 136.7 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:08,039 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 692.41 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 99.9 MB in the beginning and 172.1 MB in the end (delta: -72.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 134.31 ms. Allocated memory is still 202.4 MB. Free memory was 172.1 MB in the beginning and 167.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1177.58 ms. Allocated memory was 202.4 MB in the beginning and 233.3 MB in the end (delta: 30.9 MB). Free memory was 167.9 MB in the beginning and 201.2 MB in the end (delta: -33.4 MB). Peak memory consumption was 87.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13051.41 ms. Allocated memory was 233.3 MB in the beginning and 454.6 MB in the end (delta: 221.2 MB). Free memory was 199.8 MB in the beginning and 284.3 MB in the end (delta: -84.5 MB). Peak memory consumption was 136.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 910]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L149] int waterLevel = 1; [L150] int methaneLevelCritical = 0; [L407] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L608] int pumpRunning = 0; [L609] int systemActive = 1; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L862] int retValue_acc ; [L865] retValue_acc = 1 [L866] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L770] int splverifierCounter ; [L771] int tmp ; [L772] int tmp___0 ; [L773] int tmp___1 ; [L774] int tmp___2 ; [L777] splverifierCounter = 0 [L779] COND TRUE 1 [L781] COND TRUE splverifierCounter < 4 [L787] tmp = __VERIFIER_nondet_int() [L789] COND TRUE \read(tmp) [L791] CALL waterRise() [L167] COND TRUE waterLevel < 2 [L168] waterLevel = waterLevel + 1 [L791] RET waterRise() [L797] tmp___0 = __VERIFIER_nondet_int() [L799] COND FALSE !(\read(tmp___0)) [L807] tmp___2 = __VERIFIER_nondet_int() [L809] COND FALSE !(\read(tmp___2)) [L815] tmp___1 = __VERIFIER_nondet_int() [L817] COND TRUE \read(tmp___1) [L824] CALL timeShift() [L616] COND FALSE !(\read(pumpRunning)) [L623] COND TRUE \read(systemActive) [L625] CALL processEnvironment() [L645] int tmp ; [L648] COND FALSE !(\read(pumpRunning)) [L663] FCALL processEnvironment__wrappee__base() [L625] RET processEnvironment() [L631] CALL __utac_acc__Specification3_spec__1() [L873] int tmp ; [L874] int tmp___0 ; [L875] int tmp___1 ; [L879] CALL, EXPR isMethaneLevelCritical() [L188] int retValue_acc ; [L191] retValue_acc = methaneLevelCritical [L192] return (retValue_acc); [L879] RET, EXPR isMethaneLevelCritical() [L879] tmp = isMethaneLevelCritical() [L881] COND FALSE !(\read(tmp)) [L885] CALL, EXPR getWaterLevel() [L220] int retValue_acc ; [L223] retValue_acc = waterLevel [L224] return (retValue_acc); [L885] RET, EXPR getWaterLevel() [L885] tmp___0 = getWaterLevel() [L887] COND TRUE tmp___0 == 2 [L889] CALL, EXPR isPumpRunning() [L697] int retValue_acc ; [L700] retValue_acc = pumpRunning [L701] return (retValue_acc); [L889] RET, EXPR isPumpRunning() [L889] tmp___1 = isPumpRunning() [L891] COND FALSE !(\read(tmp___1)) [L895] CALL __automaton_fail() [L910] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 221 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 12.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 467 SDtfs, 609 SDslu, 212 SDs, 0 SdLazy, 1048 SolverSat, 382 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 128 GetRequests, 101 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=184occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 141 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 369 NumberOfCodeBlocks, 369 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 294 ConstructedInterpolants, 0 QuantifiedInterpolants, 82798 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...