/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=LOWLEXORDER --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_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:15:55,428 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:15:55,433 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:15:55,475 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:15:55,476 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:15:55,484 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:15:55,486 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:15:55,490 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:15:55,493 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:15:55,497 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:15:55,498 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:15:55,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:15:55,499 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:15:55,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:15:55,505 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:15:55,507 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:15:55,509 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:15:55,510 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:15:55,512 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:15:55,522 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:15:55,524 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:15:55,525 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:15:55,526 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:15:55,527 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:15:55,545 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:15:55,545 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:15:55,545 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:15:55,546 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:15:55,547 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:15:55,551 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:15:55,551 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:15:55,552 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:15:55,553 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:15:55,554 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:15:55,557 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:15:55,557 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:15:55,558 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:15:55,558 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:15:55,558 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:15:55,560 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:15:55,560 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:15:55,561 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 [2020-09-24 21:15:55,590 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:15:55,590 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:15:55,592 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:15:55,592 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:15:55,592 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:15:55,592 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:15:55,592 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:15:55,593 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:15:55,593 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:15:55,593 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:15:55,593 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:15:55,593 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:15:55,594 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:15:55,594 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:15:55,594 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:15:55,594 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:15:55,594 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:15:55,595 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:15:55,595 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:15:55,595 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:15:55,595 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:15:55,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:15:55,596 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:15:55,596 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:15:55,596 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:15:55,596 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:15:55,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:15:55,596 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:15:55,597 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:15:55,597 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:15:56,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:15:56,050 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:15:56,055 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:15:56,056 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:15:56,057 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:15:56,058 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product41.cil.c [2020-09-24 21:15:56,131 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89ee69d16/85446b540072445fa378432dc5301109/FLAG1b3335010 [2020-09-24 21:15:56,822 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:15:56,823 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product41.cil.c [2020-09-24 21:15:56,837 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89ee69d16/85446b540072445fa378432dc5301109/FLAG1b3335010 [2020-09-24 21:15:56,989 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89ee69d16/85446b540072445fa378432dc5301109 [2020-09-24 21:15:57,004 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:15:57,010 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:15:57,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:15:57,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:15:57,016 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:15:57,017 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:15:56" (1/1) ... [2020-09-24 21:15:57,021 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:57, skipping insertion in model container [2020-09-24 21:15:57,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:15:56" (1/1) ... [2020-09-24 21:15:57,031 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:15:57,087 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:15:57,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:15:57,445 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:15:57,638 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:15:57,674 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:15:57,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:57 WrapperNode [2020-09-24 21:15:57,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:15:57,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:15:57,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:15:57,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:15:57,694 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:57" (1/1) ... [2020-09-24 21:15:57,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:57" (1/1) ... [2020-09-24 21:15:57,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:57" (1/1) ... [2020-09-24 21:15:57,717 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:57" (1/1) ... [2020-09-24 21:15:57,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:57" (1/1) ... [2020-09-24 21:15:57,761 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:57" (1/1) ... [2020-09-24 21:15:57,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:57" (1/1) ... [2020-09-24 21:15:57,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:15:57,776 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:15:57,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:15:57,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:15:57,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:57" (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 [2020-09-24 21:15:57,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:15:57,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:15:57,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 21:15:57,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 21:15:57,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 21:15:57,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 21:15:57,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 21:15:57,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 21:15:57,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 21:15:57,871 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 21:15:57,871 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 21:15:57,872 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 21:15:57,872 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 21:15:57,872 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 21:15:57,872 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 21:15:57,873 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 21:15:57,873 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 21:15:57,873 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 21:15:57,874 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 21:15:57,874 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 21:15:57,874 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 21:15:57,874 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 21:15:57,875 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 21:15:57,875 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 21:15:57,875 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 21:15:57,876 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 21:15:57,876 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 21:15:57,876 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 21:15:57,876 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 21:15:57,876 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 21:15:57,877 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 21:15:57,877 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:15:57,877 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 21:15:57,877 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 21:15:57,877 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 21:15:57,877 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 21:15:57,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 21:15:57,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 21:15:57,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:15:57,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:15:57,878 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 21:15:57,878 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 21:15:57,878 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:15:57,879 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:15:57,879 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 21:15:57,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:15:57,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:15:57,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:15:57,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:15:57,880 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 21:15:57,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:15:57,880 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 21:15:57,880 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 21:15:57,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:15:57,881 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 21:15:57,881 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 21:15:57,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:15:57,881 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 21:15:57,881 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 21:15:57,882 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 21:15:57,882 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 21:15:57,882 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 21:15:57,882 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 21:15:57,882 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 21:15:57,883 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 21:15:57,883 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 21:15:57,883 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 21:15:57,883 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 21:15:57,883 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 21:15:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 21:15:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 21:15:57,885 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 21:15:57,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 21:15:57,886 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 21:15:57,886 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 21:15:57,887 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 21:15:57,887 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 21:15:57,887 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 21:15:57,887 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 21:15:57,887 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 21:15:57,887 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 21:15:57,887 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 21:15:57,888 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 21:15:57,888 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 21:15:57,888 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:15:57,889 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 21:15:57,889 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 21:15:57,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:15:57,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:15:57,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:15:59,086 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:15:59,086 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:15:59,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:15:59 BoogieIcfgContainer [2020-09-24 21:15:59,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:15:59,095 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:15:59,095 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:15:59,099 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:15:59,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:15:56" (1/3) ... [2020-09-24 21:15:59,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77c77687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:15:59, skipping insertion in model container [2020-09-24 21:15:59,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:57" (2/3) ... [2020-09-24 21:15:59,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77c77687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:15:59, skipping insertion in model container [2020-09-24 21:15:59,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:15:59" (3/3) ... [2020-09-24 21:15:59,102 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product41.cil.c [2020-09-24 21:15:59,111 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:15:59,122 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:15:59,143 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:15:59,174 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:15:59,175 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:15:59,175 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:15:59,175 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:15:59,175 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:15:59,175 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:15:59,175 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:15:59,176 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:15:59,203 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states. [2020-09-24 21:15:59,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 21:15:59,220 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:15:59,221 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] [2020-09-24 21:15:59,222 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:15:59,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:15:59,230 INFO L82 PathProgramCache]: Analyzing trace with hash -304356178, now seen corresponding path program 1 times [2020-09-24 21:15:59,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:15:59,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [220962555] [2020-09-24 21:15:59,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:15:59,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:15:59,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:59,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:00,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:01,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:01,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:04,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:04,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 21:16:04,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 21:16:04,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 21:16:04,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:04,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 21:16:04,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 21:16:04,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 21:16:04,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 21:16:05,232 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:16:05,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:16:05,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:05,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:05,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:05,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:16:05,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:05,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-09-24 21:16:05,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:05,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:05,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:05,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 21:16:05,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:05,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:16:05,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:05,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:05,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:05,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:05,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:05,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 21:16:05,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:05,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:05,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:05,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:05,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:05,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:16:05,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:05,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:05,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:05,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:05,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:05,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:16:05,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:05,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:05,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:05,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:05,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:05,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:16:05,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:05,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:05,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:05,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:05,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:05,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:16:05,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:05,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:05,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:05,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:16:05,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:05,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:16:05,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:05,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:05,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:05,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:05,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:05,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:16:05,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:05,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:05,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:05,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:05,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:05,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:16:05,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:05,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:05,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:05,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:05,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:05,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:16:05,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:05,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:16:05,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:05,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:16:05,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:05,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 21:16:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:05,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:05,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:05,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:05,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:05,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:05,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:05,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:05,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:16:05,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:05,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:05,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:16:05,822 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [220962555] [2020-09-24 21:16:05,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:16:05,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 21:16:05,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241441256] [2020-09-24 21:16:05,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:16:05,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:16:05,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:16:05,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:16:05,856 INFO L87 Difference]: Start difference. First operand 295 states. Second operand 8 states. [2020-09-24 21:16:06,563 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:16:07,564 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:16:07,852 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:16:08,230 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:16:08,599 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:16:08,898 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:16:09,508 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:16:09,860 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:16:10,312 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:16:11,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:16:11,689 INFO L93 Difference]: Finished difference Result 609 states and 741 transitions. [2020-09-24 21:16:11,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 21:16:11,691 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 21:16:11,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:16:11,713 INFO L225 Difference]: With dead ends: 609 [2020-09-24 21:16:11,713 INFO L226 Difference]: Without dead ends: 408 [2020-09-24 21:16:11,719 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 21:16:11,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2020-09-24 21:16:11,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 353. [2020-09-24 21:16:11,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2020-09-24 21:16:11,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 389 transitions. [2020-09-24 21:16:11,846 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 389 transitions. Word has length 142 [2020-09-24 21:16:11,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:16:11,847 INFO L479 AbstractCegarLoop]: Abstraction has 353 states and 389 transitions. [2020-09-24 21:16:11,847 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:16:11,847 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 389 transitions. [2020-09-24 21:16:11,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-24 21:16:11,853 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:16:11,853 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:16:11,854 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:16:11,854 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:16:11,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:16:11,854 INFO L82 PathProgramCache]: Analyzing trace with hash 2143468069, now seen corresponding path program 1 times [2020-09-24 21:16:11,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:16:11,855 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1776065238] [2020-09-24 21:16:11,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:16:11,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:11,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:12,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:12,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:15,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:15,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-09-24 21:16:15,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:16:15,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3600 [2020-09-24 21:16:15,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:15,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 21:16:15,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 21:16:15,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-09-24 21:16:15,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:15,812 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:16:15,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:16:15,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:15,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:16,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:16,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:16:16,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:16,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-09-24 21:16:16,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:16,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:16,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:16,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 21:16:16,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:16,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:16:16,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:16,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:16,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:16,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:16,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:16,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:16:16,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:16,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:16,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:16,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:16,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:16,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:16:16,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:16,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:16,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:16,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:16,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:16,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:16:16,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:16,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:16,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:16,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:16,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:16,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:16:16,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:16,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:16,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:16,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:16,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:16,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:16:16,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:16,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:16,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:16,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:16:16,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:16,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:16:16,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:16,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:16,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:16,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:16,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:16,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:16:16,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:16,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:16,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:16,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:16,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:16,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:16:16,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:16,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:16,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:16,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:16:16,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:16,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:16:16,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:16,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:16,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:16,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:16:16,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:16,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 21:16:16,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:16,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:16,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:16,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:16,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:16,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:16:16,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:16,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:16,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:16,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:16:16,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:16,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 21:16:16,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:16,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:16,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:16,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:16,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:16,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:16:16,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:16,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:16:16,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:16,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:16:16,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:16,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:16:16,292 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1776065238] [2020-09-24 21:16:16,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:16:16,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 21:16:16,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027413464] [2020-09-24 21:16:16,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 21:16:16,300 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:16:16,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 21:16:16,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:16:16,300 INFO L87 Difference]: Start difference. First operand 353 states and 389 transitions. Second operand 9 states. [2020-09-24 21:16:16,908 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:16:18,276 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-24 21:16:18,904 WARN L193 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-24 21:16:19,239 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:16:19,561 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:16:19,865 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:16:20,892 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:16:21,399 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:16:21,743 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:16:22,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:16:22,517 INFO L93 Difference]: Finished difference Result 853 states and 1040 transitions. [2020-09-24 21:16:22,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 21:16:22,520 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 157 [2020-09-24 21:16:22,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:16:22,528 INFO L225 Difference]: With dead ends: 853 [2020-09-24 21:16:22,528 INFO L226 Difference]: Without dead ends: 610 [2020-09-24 21:16:22,531 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2020-09-24 21:16:22,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2020-09-24 21:16:22,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 503. [2020-09-24 21:16:22,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 503 states. [2020-09-24 21:16:22,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 575 transitions. [2020-09-24 21:16:22,627 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 575 transitions. Word has length 157 [2020-09-24 21:16:22,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:16:22,628 INFO L479 AbstractCegarLoop]: Abstraction has 503 states and 575 transitions. [2020-09-24 21:16:22,628 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 21:16:22,629 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 575 transitions. [2020-09-24 21:16:22,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-09-24 21:16:22,635 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:16:22,635 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:16:22,636 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:16:22,636 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:16:22,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:16:22,637 INFO L82 PathProgramCache]: Analyzing trace with hash 288811706, now seen corresponding path program 1 times [2020-09-24 21:16:22,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:16:22,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1287667747] [2020-09-24 21:16:22,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:16:22,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:22,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:22,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:23,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:23,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:23,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:23,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:27,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:27,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 290 [2020-09-24 21:16:27,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 21:16:27,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 21:16:27,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:27,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:27,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 21:16:27,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 21:16:27,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:28,082 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:16:28,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:16:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:28,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:28,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:28,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:16:28,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:28,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-09-24 21:16:28,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:28,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:28,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:28,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 21:16:28,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:28,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:16:28,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:28,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:28,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:28,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:28,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:28,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:16:28,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:28,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:28,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:28,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:28,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:28,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:16:28,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:28,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:28,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:28,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:28,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:28,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:16:28,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:28,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:28,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:28,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:28,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:28,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:16:28,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:28,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:28,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:28,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:28,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:28,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:16:28,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:28,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:28,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:28,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:16:28,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:28,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:16:28,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:28,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:28,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:28,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:28,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:28,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:28,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:28,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:28,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:28,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:28,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:28,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:16:28,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:28,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:28,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:28,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:16:28,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:28,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:16:28,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:28,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:28,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:28,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:16:28,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:28,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 21:16:28,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:28,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:28,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:28,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 21:16:28,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:28,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 21:16:28,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:28,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:28,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 21:16:28,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 21:16:28,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:28,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:16:28,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:28,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:28,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:28,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 21:16:28,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:28,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:16:28,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:28,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:28,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:28,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 21:16:28,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:28,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:16:28,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:28,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:28,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:28,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:28,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:28,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:28,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:28,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:28,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:28,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:28,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:28,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 21:16:28,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:28,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:28,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:28,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:28,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 21:16:28,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:16:28,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-24 21:16:28,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:28,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:16:28,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 21:16:28,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:16:28,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:28,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:16:28,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:28,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:28,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:28,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:16:28,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:28,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 21:16:28,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:28,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:16:28,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:16:28,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:16:28,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:28,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:16:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:28,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:28,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:28,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:16:28,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:28,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:16:28,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:28,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:16:28,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:28,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:16:28,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:28,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:16:28,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:28,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:28,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:28,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 21:16:28,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:28,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 21:16:28,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:28,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:28,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 21:16:28,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:28,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:28,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:16:28,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:28,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:28,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:28,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 21:16:28,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:28,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:28,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:28,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:28,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:28,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:28,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:28,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:16:28,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:28,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:28,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:28,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:28,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:28,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:28,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:28,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:28,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:28,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:28,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:28,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 21:16:28,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:28,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:28,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:28,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:16:28,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:28,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:16:28,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:28,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:28,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:28,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:28,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:28,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-09-24 21:16:28,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:28,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:28,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:28,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:28,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:28,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:28,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:28,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:28,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:16:28,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:28,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:28,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-09-24 21:16:28,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:28,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:28,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:28,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:28,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:28,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:28,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:28,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:28,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:16:28,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:28,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:28,940 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-24 21:16:28,942 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1287667747] [2020-09-24 21:16:28,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:16:28,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 21:16:28,943 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624116668] [2020-09-24 21:16:28,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 21:16:28,945 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:16:28,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 21:16:28,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-24 21:16:28,945 INFO L87 Difference]: Start difference. First operand 503 states and 575 transitions. Second operand 12 states. [2020-09-24 21:16:29,537 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:16:30,523 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:16:30,841 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:16:31,182 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:16:31,543 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:16:31,862 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:16:33,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:16:33,629 INFO L93 Difference]: Finished difference Result 1139 states and 1465 transitions. [2020-09-24 21:16:33,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 21:16:33,631 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 237 [2020-09-24 21:16:33,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:16:33,638 INFO L225 Difference]: With dead ends: 1139 [2020-09-24 21:16:33,639 INFO L226 Difference]: Without dead ends: 746 [2020-09-24 21:16:33,642 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=152, Invalid=400, Unknown=0, NotChecked=0, Total=552 [2020-09-24 21:16:33,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2020-09-24 21:16:33,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 515. [2020-09-24 21:16:33,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 515 states. [2020-09-24 21:16:33,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 583 transitions. [2020-09-24 21:16:33,728 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 583 transitions. Word has length 237 [2020-09-24 21:16:33,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:16:33,729 INFO L479 AbstractCegarLoop]: Abstraction has 515 states and 583 transitions. [2020-09-24 21:16:33,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 21:16:33,730 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 583 transitions. [2020-09-24 21:16:33,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-24 21:16:33,734 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:16:33,734 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:16:33,735 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:16:33,735 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:16:33,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:16:33,735 INFO L82 PathProgramCache]: Analyzing trace with hash 2096548391, now seen corresponding path program 1 times [2020-09-24 21:16:33,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:16:33,736 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [968248704] [2020-09-24 21:16:33,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:16:33,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:33,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:33,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:38,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:38,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:38,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-24 21:16:38,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:16:38,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-09-24 21:16:38,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:38,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 21:16:38,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-09-24 21:16:38,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-24 21:16:38,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:39,180 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:16:39,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:16:39,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:39,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:39,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:39,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:16:39,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:39,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-24 21:16:39,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:39,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:39,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:39,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:39,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:39,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:16:39,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:39,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:39,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:39,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:39,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:39,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:16:39,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:39,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:39,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:39,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:39,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:39,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:16:39,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:39,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:39,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:39,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:39,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:39,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:39,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:39,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:39,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:39,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:39,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:39,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:16:39,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:39,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:39,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:39,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:39,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:39,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:16:39,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:39,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:39,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:39,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:39,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:39,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:16:39,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:39,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:39,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:39,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:39,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:39,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:39,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:39,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:39,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:39,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:39,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:39,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:16:39,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:39,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:39,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:39,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:16:39,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:39,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:16:39,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:39,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:39,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:39,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 21:16:39,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:39,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 21:16:39,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:39,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:39,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:39,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:39,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 21:16:39,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:16:39,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 537 [2020-09-24 21:16:39,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:39,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:16:39,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 21:16:39,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:16:39,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:40,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:16:40,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:40,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:40,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:40,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:16:40,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:40,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-24 21:16:40,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:40,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:16:40,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:40,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 21:16:40,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:40,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:16:40,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:40,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:40,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:40,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:16:40,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:40,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:16:40,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:40,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:40,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:40,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:40,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:40,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:16:40,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:40,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:40,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:40,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 21:16:40,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:40,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 21:16:40,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:40,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:40,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 21:16:40,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:40,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:40,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:16:40,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:40,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:40,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:40,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 21:16:40,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:40,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:40,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:40,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:40,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:40,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:40,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:40,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:16:40,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:40,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:40,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:40,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:40,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:40,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:16:40,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:40,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:40,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:40,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:40,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:40,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 21:16:40,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:40,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:40,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:40,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:16:40,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:40,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:40,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:40,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:40,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:40,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:40,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:40,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-24 21:16:40,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:40,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:40,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:40,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:40,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:40,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:40,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:40,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:40,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:16:40,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:40,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:40,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-24 21:16:40,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:40,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:40,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:40,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:40,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:40,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:40,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:40,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:40,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:16:40,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:40,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:40,251 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 21:16:40,251 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [968248704] [2020-09-24 21:16:40,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:16:40,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 21:16:40,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132047682] [2020-09-24 21:16:40,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 21:16:40,253 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:16:40,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 21:16:40,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:16:40,254 INFO L87 Difference]: Start difference. First operand 515 states and 583 transitions. Second operand 11 states. [2020-09-24 21:16:41,412 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:16:42,023 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:16:42,335 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:16:42,656 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:16:42,994 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:16:43,312 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:16:43,664 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:16:43,976 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:16:44,364 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 21:16:44,670 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:16:45,038 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:16:45,441 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:16:45,792 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 191