/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:05:02,392 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:05:02,395 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:05:02,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:05:02,420 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:05:02,422 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:05:02,423 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:05:02,425 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:05:02,427 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:05:02,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:05:02,429 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:05:02,430 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:05:02,431 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:05:02,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:05:02,433 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:05:02,435 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:05:02,436 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:05:02,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:05:02,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:05:02,441 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:05:02,442 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:05:02,444 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:05:02,445 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:05:02,446 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:05:02,448 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:05:02,449 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:05:02,449 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:05:02,450 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:05:02,450 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:05:02,452 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:05:02,452 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:05:02,453 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:05:02,454 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:05:02,455 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:05:02,456 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:05:02,456 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:05:02,457 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:05:02,457 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:05:02,457 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:05:02,458 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:05:02,459 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:05:02,460 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 13:05:02,511 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:05:02,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:05:02,513 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:05:02,513 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:05:02,513 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:05:02,514 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:05:02,514 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:05:02,514 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:05:02,515 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:05:02,515 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:05:02,515 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:05:02,515 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:05:02,515 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:05:02,515 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:05:02,516 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:05:02,516 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:05:02,516 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:05:02,516 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:05:02,516 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:05:02,518 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:05:02,519 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:05:02,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:05:02,519 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:05:02,519 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:05:02,519 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:05:02,520 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:05:02,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:05:02,520 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:05:02,520 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:05:02,520 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:05:02,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:05:03,012 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:05:03,017 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:05:03,019 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:05:03,019 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:05:03,020 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product30.cil.c [2020-09-25 13:05:03,109 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6dffcab16/b559fbe6530a45038808312b56703f56/FLAG8804336da [2020-09-25 13:05:03,693 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:05:03,694 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product30.cil.c [2020-09-25 13:05:03,709 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6dffcab16/b559fbe6530a45038808312b56703f56/FLAG8804336da [2020-09-25 13:05:03,974 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6dffcab16/b559fbe6530a45038808312b56703f56 [2020-09-25 13:05:03,987 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:05:03,993 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:05:03,996 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:05:03,996 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:05:04,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:05:04,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:05:03" (1/1) ... [2020-09-25 13:05:04,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:04, skipping insertion in model container [2020-09-25 13:05:04,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:05:03" (1/1) ... [2020-09-25 13:05:04,016 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:05:04,091 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:05:04,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:05:04,471 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:05:04,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:05:04,715 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:05:04,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:04 WrapperNode [2020-09-25 13:05:04,715 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:05:04,716 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:05:04,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:05:04,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:05:04,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:04" (1/1) ... [2020-09-25 13:05:04,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:04" (1/1) ... [2020-09-25 13:05:04,756 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:04" (1/1) ... [2020-09-25 13:05:04,756 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:04" (1/1) ... [2020-09-25 13:05:04,799 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:04" (1/1) ... [2020-09-25 13:05:04,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:04" (1/1) ... [2020-09-25 13:05:04,814 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:04" (1/1) ... [2020-09-25 13:05:04,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:05:04,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:05:04,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:05:04,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:05:04,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:04" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:05:04,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:05:04,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:05:04,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 13:05:04,895 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 13:05:04,895 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 13:05:04,895 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 13:05:04,895 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 13:05:04,896 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:05:04,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 13:05:04,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 13:05:04,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 13:05:04,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 13:05:04,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 13:05:04,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 13:05:04,897 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 13:05:04,897 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 13:05:04,897 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 13:05:04,897 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 13:05:04,898 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 13:05:04,898 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 13:05:04,899 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 13:05:04,899 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 13:05:04,899 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 13:05:04,899 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 13:05:04,899 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 13:05:04,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 13:05:04,900 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 13:05:04,900 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 13:05:04,900 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 13:05:04,900 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 13:05:04,900 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 13:05:04,900 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 13:05:04,901 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 13:05:04,901 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 13:05:04,901 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 13:05:04,901 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 13:05:04,901 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 13:05:04,902 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 13:05:04,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 13:05:04,902 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 13:05:04,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:05:04,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:05:04,902 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:05:04,903 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 13:05:04,903 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 13:05:04,903 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 13:05:04,903 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 13:05:04,903 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 13:05:04,903 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 13:05:04,904 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 13:05:04,904 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 13:05:04,904 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 13:05:04,904 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 13:05:04,904 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 13:05:04,904 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 13:05:04,904 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:05:04,905 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 13:05:04,905 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:05:04,905 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:05:04,905 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 13:05:04,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:05:04,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:05:04,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:05:04,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:05:04,906 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 13:05:04,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:05:04,906 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 13:05:04,906 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 13:05:04,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:05:04,907 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 13:05:04,907 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 13:05:04,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:05:04,907 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 13:05:04,907 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 13:05:04,907 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 13:05:04,908 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 13:05:04,908 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 13:05:04,908 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 13:05:04,908 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 13:05:04,908 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 13:05:04,908 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 13:05:04,909 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 13:05:04,909 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 13:05:04,909 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 13:05:04,909 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 13:05:04,909 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 13:05:04,909 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 13:05:04,910 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 13:05:04,910 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 13:05:04,910 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 13:05:04,910 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 13:05:04,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:05:04,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 13:05:04,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:05:06,045 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:05:06,045 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 13:05:06,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:05:06 BoogieIcfgContainer [2020-09-25 13:05:06,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:05:06,054 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:05:06,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:05:06,061 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:05:06,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:05:03" (1/3) ... [2020-09-25 13:05:06,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2646c2e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:05:06, skipping insertion in model container [2020-09-25 13:05:06,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:05:04" (2/3) ... [2020-09-25 13:05:06,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2646c2e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:05:06, skipping insertion in model container [2020-09-25 13:05:06,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:05:06" (3/3) ... [2020-09-25 13:05:06,065 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product30.cil.c [2020-09-25 13:05:06,076 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:05:06,088 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:05:06,110 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:05:06,148 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:05:06,148 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:05:06,148 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:05:06,148 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:05:06,149 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:05:06,149 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:05:06,149 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:05:06,149 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:05:06,179 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states. [2020-09-25 13:05:06,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 13:05:06,196 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:05:06,198 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:05:06,199 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:05:06,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:05:06,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1541803154, now seen corresponding path program 1 times [2020-09-25 13:05:06,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:05:06,219 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [371243599] [2020-09-25 13:05:06,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:05:06,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:06,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:06,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:08,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:09,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:11,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:11,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 13:05:11,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:05:11,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-09-25 13:05:11,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:11,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:11,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:05:11,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 13:05:11,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 13:05:11,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 13:05:12,070 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:05:12,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:05:12,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:12,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:12,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:12,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:05:12,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:12,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-09-25 13:05:12,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:12,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:12,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:12,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:12,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 13:05:12,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:12,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:05:12,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:12,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:12,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:12,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:12,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:12,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:05:12,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:12,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:12,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:12,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:12,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:12,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:12,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:05:12,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:12,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:12,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:12,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:12,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:12,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:05:12,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:12,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:12,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:12,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:12,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:12,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:12,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:05:12,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:12,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:12,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:12,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:12,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:12,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:05:12,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:12,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:12,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:12,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:12,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:05:12,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:12,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:05:12,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:12,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:12,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:12,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:12,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:12,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:05:12,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:12,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:12,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:12,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:12,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:12,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:12,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:05:12,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:12,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:12,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:12,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:12,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:12,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:05:12,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:12,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:12,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:05:12,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:05:12,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:05:12,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:12,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 13:05:12,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:12,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:12,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:12,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:12,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:12,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:05:12,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:12,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:12,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:05:12,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:05:12,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:05:12,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:12,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:05:12,522 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [371243599] [2020-09-25 13:05:12,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:05:12,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 13:05:12,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023503380] [2020-09-25 13:05:12,532 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 13:05:12,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:05:12,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 13:05:12,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:05:12,553 INFO L87 Difference]: Start difference. First operand 309 states. Second operand 5 states. [2020-09-25 13:05:13,307 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:14,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:05:14,900 INFO L93 Difference]: Finished difference Result 464 states and 556 transitions. [2020-09-25 13:05:14,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:05:14,903 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2020-09-25 13:05:14,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:05:14,924 INFO L225 Difference]: With dead ends: 464 [2020-09-25 13:05:14,924 INFO L226 Difference]: Without dead ends: 290 [2020-09-25 13:05:14,930 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:05:14,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-09-25 13:05:15,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 248. [2020-09-25 13:05:15,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2020-09-25 13:05:15,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 269 transitions. [2020-09-25 13:05:15,040 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 269 transitions. Word has length 142 [2020-09-25 13:05:15,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:05:15,041 INFO L479 AbstractCegarLoop]: Abstraction has 248 states and 269 transitions. [2020-09-25 13:05:15,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 13:05:15,042 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 269 transitions. [2020-09-25 13:05:15,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 13:05:15,046 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:05:15,046 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:05:15,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:05:15,047 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:05:15,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:05:15,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1865196975, now seen corresponding path program 1 times [2020-09-25 13:05:15,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:05:15,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [995084493] [2020-09-25 13:05:15,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:05:15,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:15,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:15,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:16,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:16,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:16,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:20,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:20,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 13:05:20,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:05:20,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-09-25 13:05:20,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:20,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:20,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 13:05:20,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 13:05:20,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 13:05:20,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:20,549 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:05:20,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:05:20,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:20,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:20,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:20,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:05:20,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:20,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-25 13:05:20,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:20,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:20,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:20,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:20,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 13:05:20,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:20,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:05:20,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:20,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:20,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:20,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:20,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:20,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:05:20,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:20,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:20,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:20,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:20,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:20,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:20,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:05:20,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:20,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:20,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:20,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:20,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:20,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:05:20,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:20,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:20,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:20,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:20,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:20,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:20,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:05:20,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:20,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:20,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:20,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:20,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:20,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:05:20,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:20,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:20,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:20,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:20,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:05:20,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:20,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:05:20,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:20,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:20,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:20,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:20,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:20,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:05:20,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:20,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:20,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:20,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:20,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:20,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:20,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 13:05:20,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:20,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:20,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:20,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 13:05:20,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:20,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:05:20,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:20,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:20,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:20,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:20,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 13:05:20,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:20,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:05:20,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:20,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:20,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:20,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:05:20,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:20,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:05:20,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:20,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:20,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:05:20,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:20,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:05:20,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:20,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:05:20,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:20,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:20,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:20,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:20,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:20,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:05:20,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:20,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:20,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:05:20,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:20,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:05:20,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:20,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 13:05:20,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:20,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:20,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:20,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:20,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:20,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:05:20,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:20,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:20,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:05:20,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:20,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:05:20,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:21,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 13:05:21,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:21,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:21,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:21,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:21,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:21,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:05:21,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:21,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:21,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:05:21,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:05:21,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:05:21,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:21,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:05:21,053 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [995084493] [2020-09-25 13:05:21,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:05:21,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 13:05:21,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50883076] [2020-09-25 13:05:21,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:05:21,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:05:21,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:05:21,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:05:21,058 INFO L87 Difference]: Start difference. First operand 248 states and 269 transitions. Second operand 9 states. [2020-09-25 13:05:21,607 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 13:05:22,713 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:23,109 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 13:05:24,006 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:05:24,381 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:25,250 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:25,591 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 13:05:25,909 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:05:26,632 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:27,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:05:27,531 INFO L93 Difference]: Finished difference Result 636 states and 782 transitions. [2020-09-25 13:05:27,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 13:05:27,532 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 156 [2020-09-25 13:05:27,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:05:27,540 INFO L225 Difference]: With dead ends: 636 [2020-09-25 13:05:27,540 INFO L226 Difference]: Without dead ends: 474 [2020-09-25 13:05:27,544 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 13:05:27,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2020-09-25 13:05:27,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 361. [2020-09-25 13:05:27,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-09-25 13:05:27,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 399 transitions. [2020-09-25 13:05:27,628 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 399 transitions. Word has length 156 [2020-09-25 13:05:27,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:05:27,629 INFO L479 AbstractCegarLoop]: Abstraction has 361 states and 399 transitions. [2020-09-25 13:05:27,629 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 13:05:27,629 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 399 transitions. [2020-09-25 13:05:27,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-25 13:05:27,633 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:05:27,633 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:05:27,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:05:27,633 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:05:27,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:05:27,634 INFO L82 PathProgramCache]: Analyzing trace with hash -156806603, now seen corresponding path program 1 times [2020-09-25 13:05:27,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:05:27,635 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [858292667] [2020-09-25 13:05:27,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:05:27,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:27,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:27,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:28,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:28,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:32,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:32,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 13:05:32,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:05:32,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 13:05:32,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:32,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:32,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 13:05:32,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 13:05:32,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-25 13:05:32,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:05:33,207 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:05:33,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:05:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:33,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:33,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:33,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 13:05:33,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:33,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-25 13:05:33,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:33,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:33,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:33,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:33,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 13:05:33,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:33,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 13:05:33,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:33,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:33,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:33,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:33,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:33,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 13:05:33,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:33,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:33,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:33,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:33,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:33,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:33,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 13:05:33,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:33,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:33,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:33,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:33,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:33,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:05:33,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:33,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:33,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:33,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:33,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:33,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:05:33,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 13:05:33,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:33,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:33,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:33,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:33,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:33,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:05:33,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:33,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:33,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:33,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:33,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:05:33,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:33,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 13:05:33,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:33,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:33,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:33,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:33,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:33,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:05:33,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:33,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:33,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:33,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:33,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:33,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:33,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 13:05:33,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:33,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:33,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:33,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:05:33,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:33,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:05:33,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:33,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:33,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:33,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:33,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:05:33,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:33,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 13:05:33,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:33,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:33,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:33,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:05:33,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:33,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:05:33,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:33,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:33,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:33,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:33,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 13:05:33,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:33,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 13:05:33,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:33,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:33,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:33,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:33,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:33,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 13:05:33,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:05:33,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 13:05:33,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:33,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:33,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:05:33,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:05:33,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:05:33,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:33,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:05:33,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:33,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:33,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:33,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 13:05:33,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:33,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 13:05:33,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:33,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:33,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:05:33,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 13:05:33,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 13:05:33,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:33,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:05:33,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:33,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:33,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:33,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:05:33,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:33,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:05:33,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:33,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:33,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:33,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:33,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:05:33,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:33,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 13:05:33,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:33,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:33,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:33,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:33,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:33,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:05:33,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:33,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:33,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:05:33,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:33,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:05:33,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:05:33,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 13:05:33,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:05:33,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:05:33,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:05:33,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:05:33,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:05:33,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 13:05:33,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:05:33,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:05:33,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:05:33,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:05:33,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:05:33,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:05:33,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:05:33,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [858292667] [2020-09-25 13:05:33,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:05:33,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 13:05:33,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253088551] [2020-09-25 13:05:33,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 13:05:33,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:05:33,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 13:05:33,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:05:33,943 INFO L87 Difference]: Start difference. First operand 361 states and 399 transitions. Second operand 11 states. [2020-09-25 13:05:34,572 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:05:35,809 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:36,180 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:05:36,533 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:36,907 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 13:05:37,232 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 13:05:37,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:05:37,672 INFO L93 Difference]: Finished difference Result 628 states and 749 transitions. [2020-09-25 13:05:37,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 13:05:37,672 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 174 [2020-09-25 13:05:37,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:05:37,673 INFO L225 Difference]: With dead ends: 628 [2020-09-25 13:05:37,674 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 13:05:37,679 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=167, Invalid=385, Unknown=0, NotChecked=0, Total=552 [2020-09-25 13:05:37,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 13:05:37,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 13:05:37,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 13:05:37,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 13:05:37,680 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 174 [2020-09-25 13:05:37,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:05:37,680 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 13:05:37,680 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 13:05:37,681 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 13:05:37,681 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 13:05:37,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:05:37,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 13:05:37,867 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:38,047 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:38,213 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:38,379 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:38,497 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 7 [2020-09-25 13:05:38,946 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 13:05:39,390 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 13:05:39,593 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 7 [2020-09-25 13:05:39,756 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:40,023 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 14 [2020-09-25 13:05:40,184 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:40,353 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:40,513 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:40,786 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 10 [2020-09-25 13:05:41,041 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 10 [2020-09-25 13:05:41,195 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:41,391 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:41,547 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:41,805 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 191 [2020-09-25 13:05:42,156 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 191 [2020-09-25 13:05:42,414 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 191 [2020-09-25 13:05:42,760 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 191 [2020-09-25 13:05:43,183 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 13:05:43,604 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 13:05:44,025 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 13:05:44,449 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 13:05:44,888 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 191 [2020-09-25 13:05:45,045 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:45,204 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:45,360 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:45,516 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:45,675 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:45,828 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:45,986 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:46,126 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 13:05:46,283 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:46,439 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:46,589 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:46,746 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:46,904 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:47,052 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:47,209 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:47,361 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:47,514 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:47,666 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:47,820 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:47,970 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:48,119 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:48,276 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:48,436 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:48,594 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:48,748 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:48,908 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:49,065 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:49,218 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:49,375 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:49,528 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:49,685 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:49,844 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:50,001 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:50,150 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:50,302 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:50,455 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:50,603 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:50,751 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:51,267 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 13:05:51,687 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 13:05:52,117 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 10 [2020-09-25 13:05:52,275 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:52,429 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:52,586 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:52,738 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:52,896 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:53,054 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:53,211 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:53,376 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:05:53,539 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:05:53,703 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:53,851 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:54,005 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:54,153 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 13:05:54,414 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 13:05:54,764 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 13:05:55,022 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 13:05:55,369 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 13:05:55,699 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 13:05:56,029 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 13:05:56,360 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-09-25 13:05:56,691 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189