/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:12:48,428 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:12:48,432 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:12:48,458 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:12:48,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:12:48,460 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:12:48,461 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:12:48,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:12:48,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:12:48,466 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:12:48,467 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:12:48,468 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:12:48,468 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:12:48,469 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:12:48,470 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:12:48,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:12:48,473 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:12:48,474 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:12:48,476 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:12:48,478 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:12:48,480 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:12:48,481 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:12:48,482 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:12:48,483 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:12:48,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:12:48,486 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:12:48,487 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:12:48,488 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:12:48,488 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:12:48,489 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:12:48,490 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:12:48,491 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:12:48,491 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:12:48,492 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:12:48,493 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:12:48,494 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:12:48,495 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:12:48,495 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:12:48,495 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:12:48,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:12:48,497 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:12:48,498 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-21 12:12:48,526 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:12:48,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:12:48,529 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:12:48,529 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:12:48,530 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:12:48,530 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:12:48,530 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:12:48,530 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:12:48,530 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:12:48,531 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:12:48,531 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:12:48,531 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:12:48,531 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:12:48,531 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:12:48,532 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:12:48,532 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:12:48,532 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:12:48,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:12:48,532 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:12:48,533 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:12:48,534 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:12:48,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:12:48,534 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:12:48,535 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:12:48,535 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:12:48,535 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:12:48,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:12:48,535 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:12:48,536 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:12:48,537 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 12:12:49,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:12:49,041 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:12:49,045 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:12:49,048 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:12:49,048 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:12:49,050 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product55.cil.c [2020-09-21 12:12:49,144 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/70cbf9573/ead92836cf764029a6a842f955d80b51/FLAGa4dcd23fb [2020-09-21 12:12:49,754 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:12:49,755 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product55.cil.c [2020-09-21 12:12:49,769 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/70cbf9573/ead92836cf764029a6a842f955d80b51/FLAGa4dcd23fb [2020-09-21 12:12:50,058 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/70cbf9573/ead92836cf764029a6a842f955d80b51 [2020-09-21 12:12:50,071 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:12:50,077 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:12:50,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:12:50,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:12:50,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:12:50,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:12:50" (1/1) ... [2020-09-21 12:12:50,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c1563a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:12:50, skipping insertion in model container [2020-09-21 12:12:50,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:12:50" (1/1) ... [2020-09-21 12:12:50,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:12:50,178 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:12:50,655 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:12:50,670 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:12:50,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:12:50,821 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:12:50,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:12:50 WrapperNode [2020-09-21 12:12:50,822 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:12:50,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:12:50,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:12:50,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:12:50,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:12:50" (1/1) ... [2020-09-21 12:12:50,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:12:50" (1/1) ... [2020-09-21 12:12:50,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:12:50" (1/1) ... [2020-09-21 12:12:50,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:12:50" (1/1) ... [2020-09-21 12:12:50,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:12:50" (1/1) ... [2020-09-21 12:12:50,904 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:12:50" (1/1) ... [2020-09-21 12:12:50,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:12:50" (1/1) ... [2020-09-21 12:12:50,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:12:50,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:12:50,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:12:50,919 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:12:50,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:12:50" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:12:51,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:12:51,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:12:51,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 12:12:51,003 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 12:12:51,003 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 12:12:51,004 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 12:12:51,004 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 12:12:51,004 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 12:12:51,005 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 12:12:51,005 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 12:12:51,005 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 12:12:51,006 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 12:12:51,006 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 12:12:51,006 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 12:12:51,006 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-21 12:12:51,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 12:12:51,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 12:12:51,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 12:12:51,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 12:12:51,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 12:12:51,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 12:12:51,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 12:12:51,009 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 12:12:51,009 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 12:12:51,010 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 12:12:51,010 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 12:12:51,010 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:12:51,011 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 12:12:51,011 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 12:12:51,011 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 12:12:51,011 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-21 12:12:51,011 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 12:12:51,011 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 12:12:51,012 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 12:12:51,012 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 12:12:51,012 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 12:12:51,012 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 12:12:51,012 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 12:12:51,013 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-21 12:12:51,013 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-21 12:12:51,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-21 12:12:51,013 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 12:12:51,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:12:51,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:12:51,014 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 12:12:51,014 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 12:12:51,014 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 12:12:51,014 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 12:12:51,014 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 12:12:51,014 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 12:12:51,014 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 12:12:51,015 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 12:12:51,015 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 12:12:51,015 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 12:12:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 12:12:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 12:12:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-21 12:12:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 12:12:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 12:12:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 12:12:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 12:12:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 12:12:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 12:12:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 12:12:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 12:12:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 12:12:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 12:12:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 12:12:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 12:12:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 12:12:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 12:12:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 12:12:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 12:12:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 12:12:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 12:12:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 12:12:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 12:12:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 12:12:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 12:12:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 12:12:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 12:12:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 12:12:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:12:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 12:12:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 12:12:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 12:12:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-21 12:12:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-21 12:12:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 12:12:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 12:12:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 12:12:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 12:12:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-21 12:12:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-21 12:12:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 12:12:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:12:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 12:12:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:12:52,124 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:12:52,125 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 12:12:52,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:12:52 BoogieIcfgContainer [2020-09-21 12:12:52,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:12:52,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:12:52,132 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:12:52,136 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:12:52,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:12:50" (1/3) ... [2020-09-21 12:12:52,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77cd5afd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:12:52, skipping insertion in model container [2020-09-21 12:12:52,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:12:50" (2/3) ... [2020-09-21 12:12:52,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77cd5afd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:12:52, skipping insertion in model container [2020-09-21 12:12:52,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:12:52" (3/3) ... [2020-09-21 12:12:52,141 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product55.cil.c [2020-09-21 12:12:52,152 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:12:52,166 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:12:52,189 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:12:52,228 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:12:52,228 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:12:52,228 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:12:52,229 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:12:52,229 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:12:52,230 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:12:52,230 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:12:52,230 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:12:52,255 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2020-09-21 12:12:52,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 12:12:52,268 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:12:52,269 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:12:52,270 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:12:52,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:12:52,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1378211837, now seen corresponding path program 1 times [2020-09-21 12:12:52,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:12:52,290 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2141955714] [2020-09-21 12:12:52,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:12:52,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:52,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:52,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:53,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:53,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-21 12:12:53,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:12:53,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1081 [2020-09-21 12:12:53,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:53,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:53,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 12:12:53,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:53,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-09-21 12:12:54,102 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:12:54,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:12:54,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:54,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:54,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:54,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:54,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:54,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-21 12:12:54,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:54,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:54,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:54,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:54,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:12:54,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:12:54,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:54,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:54,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:54,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:12:54,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:54,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:54,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:54,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:54,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:54,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:54,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:54,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:12:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:54,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:54,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:54,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:12:54,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:54,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:54,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:54,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:54,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:54,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:54,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:54,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:12:54,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:54,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:54,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:54,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:54,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:54,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:12:54,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:54,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:54,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:54,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:54,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:54,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:12:54,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:54,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:54,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:54,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:12:54,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:54,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:54,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:54,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:54,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:54,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:54,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:54,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 12:12:54,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:54,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:54,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:54,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:54,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:54,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:54,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:54,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:54,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:12:54,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:54,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:54,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 12:12:54,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:54,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:54,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:54,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:54,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:54,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:54,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:54,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:54,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:12:54,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:54,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:54,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 12:12:54,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:54,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:54,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:54,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:54,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:54,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:12:54,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:54,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:54,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:12:54,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:54,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:12:54,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:12:54,298 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2141955714] [2020-09-21 12:12:54,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:12:54,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 12:12:54,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606383031] [2020-09-21 12:12:54,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 12:12:54,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:12:54,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 12:12:54,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:12:54,333 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 3 states. [2020-09-21 12:12:55,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:12:55,679 INFO L93 Difference]: Finished difference Result 355 states and 464 transitions. [2020-09-21 12:12:55,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 12:12:55,681 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-09-21 12:12:55,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:12:55,699 INFO L225 Difference]: With dead ends: 355 [2020-09-21 12:12:55,700 INFO L226 Difference]: Without dead ends: 191 [2020-09-21 12:12:55,706 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:12:55,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-09-21 12:12:55,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 155. [2020-09-21 12:12:55,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-09-21 12:12:55,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 185 transitions. [2020-09-21 12:12:55,830 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 185 transitions. Word has length 52 [2020-09-21 12:12:55,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:12:55,831 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 185 transitions. [2020-09-21 12:12:55,831 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 12:12:55,831 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 185 transitions. [2020-09-21 12:12:55,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-21 12:12:55,845 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:12:55,845 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:12:55,848 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:12:55,849 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:12:55,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:12:55,849 INFO L82 PathProgramCache]: Analyzing trace with hash 866991252, now seen corresponding path program 1 times [2020-09-21 12:12:55,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:12:55,850 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2077433270] [2020-09-21 12:12:55,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:12:55,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:55,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:56,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:56,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:56,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-21 12:12:56,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:12:56,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1017 [2020-09-21 12:12:56,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:56,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:12:56,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 12:12:56,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:12:56,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:12:57,326 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:12:57,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:12:57,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:57,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:57,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:57,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:57,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:57,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-21 12:12:57,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:57,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:57,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:57,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:57,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:12:57,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:12:57,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:57,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:57,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:57,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:12:57,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:57,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:57,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:57,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:57,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:57,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:57,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:12:57,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:12:57,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:57,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:57,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:57,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:12:57,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:57,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:12:57,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:57,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:57,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:57,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:57,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:57,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:12:57,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:57,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:57,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:57,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:57,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:57,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:57,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:57,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:57,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:57,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:57,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:12:57,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:12:57,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:57,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:57,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:57,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:12:57,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:57,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:12:57,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:57,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:57,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:12:57,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:57,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:57,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 12:12:57,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:57,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:57,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:57,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:57,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:57,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:57,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:57,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:57,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:12:57,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:57,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:57,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 12:12:57,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:57,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:57,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:57,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:57,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:57,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:57,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:57,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:57,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:12:57,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:57,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:12:57,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 12:12:57,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:57,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:57,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:12:57,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:12:57,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:12:57,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:12:57,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:12:57,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:12:57,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:12:57,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:12:57,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:12:57,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:12:57,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2077433270] [2020-09-21 12:12:57,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:12:57,548 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:12:57,548 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009012081] [2020-09-21 12:12:57,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:12:57,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:12:57,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:12:57,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:12:57,552 INFO L87 Difference]: Start difference. First operand 155 states and 185 transitions. Second operand 4 states. [2020-09-21 12:12:57,979 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:12:59,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:12:59,087 INFO L93 Difference]: Finished difference Result 282 states and 347 transitions. [2020-09-21 12:12:59,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:12:59,089 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-09-21 12:12:59,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:12:59,096 INFO L225 Difference]: With dead ends: 282 [2020-09-21 12:12:59,096 INFO L226 Difference]: Without dead ends: 175 [2020-09-21 12:12:59,101 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:12:59,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-09-21 12:12:59,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 146. [2020-09-21 12:12:59,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-09-21 12:12:59,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 173 transitions. [2020-09-21 12:12:59,154 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 173 transitions. Word has length 53 [2020-09-21 12:12:59,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:12:59,155 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 173 transitions. [2020-09-21 12:12:59,155 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:12:59,155 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 173 transitions. [2020-09-21 12:12:59,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 12:12:59,157 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:12:59,157 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] [2020-09-21 12:12:59,158 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:12:59,158 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:12:59,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:12:59,158 INFO L82 PathProgramCache]: Analyzing trace with hash 295047202, now seen corresponding path program 1 times [2020-09-21 12:12:59,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:12:59,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1335901935] [2020-09-21 12:12:59,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:12:59,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:12:59,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:12:59,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:00,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:00,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-21 12:13:00,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:13:00,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1034 [2020-09-21 12:13:00,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:00,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:13:00,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:13:00,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 12:13:00,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:00,642 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:13:00,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:13:00,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:00,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:00,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:00,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:00,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:00,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-09-21 12:13:00,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:00,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:13:00,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:00,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:13:00,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:00,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:13:00,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:00,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:00,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:00,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:13:00,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:00,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:13:00,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:00,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:13:00,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:00,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:13:00,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:00,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:13:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:00,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:00,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:00,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:13:00,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:00,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:13:00,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:00,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:13:00,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:00,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:13:00,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:00,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:13:00,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:00,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:00,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:00,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:00,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:00,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:13:00,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:00,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:13:00,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:00,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:13:00,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:00,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:13:00,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:00,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:00,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:00,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:13:00,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:00,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:13:00,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:00,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:13:00,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:00,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:13:00,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:00,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:13:00,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:00,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:00,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:00,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:00,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:00,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:13:00,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:00,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:13:00,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:13:00,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:13:00,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:00,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 12:13:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:00,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:00,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:00,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:00,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:00,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:13:00,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:00,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:13:00,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:13:00,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:13:00,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:13:00,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 12:13:00,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:00,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:00,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:00,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:00,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:00,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:13:00,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:00,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:13:00,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:13:00,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:13:00,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:00,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:13:00,924 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1335901935] [2020-09-21 12:13:00,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:13:00,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:13:00,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781619752] [2020-09-21 12:13:00,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:13:00,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:13:00,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:13:00,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:13:00,927 INFO L87 Difference]: Start difference. First operand 146 states and 173 transitions. Second operand 4 states. [2020-09-21 12:13:01,224 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 12:13:03,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:13:03,301 INFO L93 Difference]: Finished difference Result 433 states and 539 transitions. [2020-09-21 12:13:03,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:13:03,302 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2020-09-21 12:13:03,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:13:03,307 INFO L225 Difference]: With dead ends: 433 [2020-09-21 12:13:03,308 INFO L226 Difference]: Without dead ends: 311 [2020-09-21 12:13:03,317 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:13:03,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2020-09-21 12:13:03,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 262. [2020-09-21 12:13:03,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-09-21 12:13:03,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 317 transitions. [2020-09-21 12:13:03,392 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 317 transitions. Word has length 57 [2020-09-21 12:13:03,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:13:03,393 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 317 transitions. [2020-09-21 12:13:03,393 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:13:03,393 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 317 transitions. [2020-09-21 12:13:03,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-21 12:13:03,394 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:13:03,395 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] [2020-09-21 12:13:03,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:13:03,395 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:13:03,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:13:03,396 INFO L82 PathProgramCache]: Analyzing trace with hash 557384966, now seen corresponding path program 1 times [2020-09-21 12:13:03,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:13:03,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [421258361] [2020-09-21 12:13:03,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:13:03,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:03,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:04,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:04,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-21 12:13:04,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:04,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-21 12:13:04,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:04,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 12:13:04,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:13:04,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-21 12:13:04,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:04,821 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 12:13:04,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:13:04,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:04,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:04,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:04,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:04,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:04,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-21 12:13:04,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:04,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:13:04,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:04,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:13:04,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:05,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:13:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:05,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:05,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:05,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:13:05,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:05,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:13:05,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:05,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:13:05,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:05,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:13:05,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:05,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:13:05,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:05,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:05,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:05,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:13:05,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:05,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:13:05,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:05,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:13:05,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:05,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:13:05,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:05,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:13:05,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:05,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:05,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:05,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:05,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:05,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:13:05,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:05,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:13:05,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:05,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:13:05,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:05,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:13:05,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:05,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:05,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:05,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:13:05,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:05,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:13:05,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:05,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:13:05,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:05,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:13:05,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:05,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 12:13:05,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:05,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:05,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:05,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:13:05,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:05,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:13:05,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:05,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:13:05,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:05,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:13:05,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:13:05,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 12:13:05,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:05,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:05,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:05,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:05,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:05,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:13:05,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:05,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:13:05,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:05,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:13:05,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:05,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 12:13:05,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:05,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:05,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:05,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:05,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:05,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:13:05,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:05,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:13:05,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:13:05,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:13:05,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:13:05,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 12:13:05,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:13:05,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:13:05,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:13:05,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:13:05,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:13:05,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:13:05,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:13:05,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:13:05,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:13:05,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:13:05,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:13:05,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:13:05,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [421258361] [2020-09-21 12:13:05,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:13:05,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 12:13:05,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846477270] [2020-09-21 12:13:05,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 12:13:05,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:13:05,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 12:13:05,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:13:05,171 INFO L87 Difference]: Start difference. First operand 262 states and 317 transitions. Second operand 9 states. [2020-09-21 12:13:05,616 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 12:13:07,729 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 188 [2020-09-21 12:13:08,238 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:13:08,602 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:13:08,961 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-21 12:13:09,551 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:13:10,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:13:10,905 INFO L93 Difference]: Finished difference Result 832 states and 1135 transitions. [2020-09-21 12:13:10,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 12:13:10,911 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 63 [2020-09-21 12:13:10,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:13:10,917 INFO L225 Difference]: With dead ends: 832 [2020-09-21 12:13:10,918 INFO L226 Difference]: Without dead ends: 594 [2020-09-21 12:13:10,919 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-09-21 12:13:10,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2020-09-21 12:13:11,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 489. [2020-09-21 12:13:11,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 489 states. [2020-09-21 12:13:11,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 612 transitions. [2020-09-21 12:13:11,045 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 612 transitions. Word has length 63 [2020-09-21 12:13:11,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:13:11,046 INFO L479 AbstractCegarLoop]: Abstraction has 489 states and 612 transitions. [2020-09-21 12:13:11,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 12:13:11,046 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 612 transitions. [2020-09-21 12:13:11,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-21 12:13:11,050 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:13:11,050 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] [2020-09-21 12:13:11,050 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:13:11,050 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:13:11,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:13:11,051 INFO L82 PathProgramCache]: Analyzing trace with hash 2018489452, now seen corresponding path program 1 times [2020-09-21 12:13:11,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:13:11,051 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1104344244] [2020-09-21 12:13:11,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:13:11,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 12:13:11,116 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 12:13:11,116 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 12:13:11,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 12:13:11,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 12:13:11 BoogieIcfgContainer [2020-09-21 12:13:11,158 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 12:13:11,161 INFO L168 Benchmark]: Toolchain (without parser) took 21087.31 ms. Allocated memory was 140.0 MB in the beginning and 535.3 MB in the end (delta: 395.3 MB). Free memory was 102.1 MB in the beginning and 123.1 MB in the end (delta: -21.0 MB). Peak memory consumption was 374.4 MB. Max. memory is 7.1 GB. [2020-09-21 12:13:11,163 INFO L168 Benchmark]: CDTParser took 0.76 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 12:13:11,165 INFO L168 Benchmark]: CACSL2BoogieTranslator took 745.19 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 101.5 MB in the beginning and 168.5 MB in the end (delta: -67.0 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2020-09-21 12:13:11,172 INFO L168 Benchmark]: Boogie Preprocessor took 95.47 ms. Allocated memory is still 202.4 MB. Free memory was 168.5 MB in the beginning and 164.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-21 12:13:11,173 INFO L168 Benchmark]: RCFGBuilder took 1212.01 ms. Allocated memory was 202.4 MB in the beginning and 236.5 MB in the end (delta: 34.1 MB). Free memory was 164.4 MB in the beginning and 191.2 MB in the end (delta: -26.7 MB). Peak memory consumption was 81.2 MB. Max. memory is 7.1 GB. [2020-09-21 12:13:11,173 INFO L168 Benchmark]: TraceAbstraction took 19025.76 ms. Allocated memory was 236.5 MB in the beginning and 535.3 MB in the end (delta: 298.8 MB). Free memory was 189.7 MB in the beginning and 123.1 MB in the end (delta: 66.6 MB). Peak memory consumption was 365.5 MB. Max. memory is 7.1 GB. [2020-09-21 12:13:11,187 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 745.19 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 101.5 MB in the beginning and 168.5 MB in the end (delta: -67.0 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 95.47 ms. Allocated memory is still 202.4 MB. Free memory was 168.5 MB in the beginning and 164.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1212.01 ms. Allocated memory was 202.4 MB in the beginning and 236.5 MB in the end (delta: 34.1 MB). Free memory was 164.4 MB in the beginning and 191.2 MB in the end (delta: -26.7 MB). Peak memory consumption was 81.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19025.76 ms. Allocated memory was 236.5 MB in the beginning and 535.3 MB in the end (delta: 298.8 MB). Free memory was 189.7 MB in the beginning and 123.1 MB in the end (delta: 66.6 MB). Peak memory consumption was 365.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 193]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L86] int waterLevel = 1; [L87] int methaneLevelCritical = 0; [L367] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L564] int cleanupTimeShifts = 4; [L667] int pumpRunning = 0; [L668] int systemActive = 1; [L640] int retValue_acc ; [L641] int tmp ; [L645] FCALL select_helpers() [L646] FCALL select_features() [L647] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L647] RET, EXPR valid_product() [L647] tmp = valid_product() [L649] COND TRUE \read(tmp) [L651] FCALL setup() [L652] CALL runTest() [L634] CALL test() [L941] int splverifierCounter ; [L942] int tmp ; [L943] int tmp___0 ; [L944] int tmp___1 ; [L945] int tmp___2 ; [L948] splverifierCounter = 0 [L950] COND TRUE 1 [L952] COND TRUE splverifierCounter < 4 [L958] tmp = __VERIFIER_nondet_int() [L960] COND TRUE \read(tmp) [L962] CALL waterRise() [L104] COND TRUE waterLevel < 2 [L105] waterLevel = waterLevel + 1 [L962] RET waterRise() [L968] tmp___0 = __VERIFIER_nondet_int() [L970] COND FALSE !(\read(tmp___0)) [L978] tmp___2 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___2)) [L984] tmp___1 = __VERIFIER_nondet_int() [L986] COND TRUE \read(tmp___1) [L988] CALL stopSystem() [L894] COND FALSE !(\read(pumpRunning)) [L901] systemActive = 0 [L988] RET stopSystem() [L995] CALL timeShift() [L675] COND FALSE !(\read(pumpRunning)) [L682] COND FALSE !(\read(systemActive)) [L690] CALL __utac_acc__Specification3_spec__1() [L907] int tmp ; [L908] int tmp___0 ; [L909] int tmp___1 ; [L913] CALL, EXPR isMethaneLevelCritical() [L125] int retValue_acc ; [L128] retValue_acc = methaneLevelCritical [L129] return (retValue_acc); [L913] RET, EXPR isMethaneLevelCritical() [L913] tmp = isMethaneLevelCritical() [L915] COND FALSE !(\read(tmp)) [L919] CALL, EXPR getWaterLevel() [L157] int retValue_acc ; [L160] retValue_acc = waterLevel [L161] return (retValue_acc); [L919] RET, EXPR getWaterLevel() [L919] tmp___0 = getWaterLevel() [L921] COND TRUE tmp___0 == 2 [L923] CALL, EXPR isPumpRunning() [L808] int retValue_acc ; [L811] retValue_acc = pumpRunning [L812] return (retValue_acc); [L923] RET, EXPR isPumpRunning() [L923] tmp___1 = isPumpRunning() [L925] COND FALSE !(\read(tmp___1)) [L929] CALL __automaton_fail() [L193] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 11.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 591 SDtfs, 823 SDslu, 320 SDs, 0 SdLazy, 1788 SolverSat, 451 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=489occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 219 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.6s InterpolantComputationTime, 292 NumberOfCodeBlocks, 292 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 64304 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...