/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product05.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 22:09:36,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 22:09:36,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 22:09:36,480 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 22:09:36,481 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 22:09:36,487 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 22:09:36,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 22:09:36,493 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 22:09:36,497 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 22:09:36,503 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 22:09:36,504 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 22:09:36,520 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 22:09:36,520 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 22:09:36,523 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 22:09:36,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 22:09:36,528 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 22:09:36,528 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 22:09:36,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 22:09:36,538 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 22:09:36,545 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 22:09:36,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 22:09:36,548 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 22:09:36,549 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 22:09:36,551 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 22:09:36,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 22:09:36,559 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 22:09:36,559 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 22:09:36,560 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 22:09:36,560 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 22:09:36,561 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 22:09:36,561 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 22:09:36,562 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 22:09:36,562 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 22:09:36,567 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 22:09:36,569 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 22:09:36,569 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 22:09:36,570 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 22:09:36,570 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 22:09:36,570 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 22:09:36,571 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 22:09:36,572 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 22:09:36,581 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 [2020-10-27 22:09:36,625 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 22:09:36,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 22:09:36,630 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 22:09:36,630 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 22:09:36,630 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 22:09:36,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 22:09:36,630 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 22:09:36,631 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 22:09:36,631 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 22:09:36,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 22:09:36,632 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 22:09:36,632 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 22:09:36,632 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 22:09:36,633 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 22:09:36,633 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 22:09:36,633 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 22:09:36,633 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 22:09:36,633 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 22:09:36,634 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 22:09:36,634 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 22:09:36,634 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 22:09:36,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 22:09:36,634 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 22:09:36,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 22:09:36,635 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 22:09:36,635 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 22:09:36,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 22:09:36,635 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 22:09:36,635 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 22:09:36,636 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 22:09:37,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 22:09:37,029 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 22:09:37,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 22:09:37,033 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 22:09:37,034 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 22:09:37,035 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product05.cil.c [2020-10-27 22:09:37,124 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8f4f9d53c/246ae03a5d7e443ca3ddd982a811b3f3/FLAG867c7bab0 [2020-10-27 22:09:37,755 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 22:09:37,756 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product05.cil.c [2020-10-27 22:09:37,773 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8f4f9d53c/246ae03a5d7e443ca3ddd982a811b3f3/FLAG867c7bab0 [2020-10-27 22:09:38,055 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8f4f9d53c/246ae03a5d7e443ca3ddd982a811b3f3 [2020-10-27 22:09:38,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 22:09:38,064 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 22:09:38,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 22:09:38,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 22:09:38,070 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 22:09:38,072 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:09:38" (1/1) ... [2020-10-27 22:09:38,075 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a77ef8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:09:38, skipping insertion in model container [2020-10-27 22:09:38,076 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:09:38" (1/1) ... [2020-10-27 22:09:38,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 22:09:38,155 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 22:09:38,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:09:38,473 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 22:09:38,586 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:09:38,626 INFO L208 MainTranslator]: Completed translation [2020-10-27 22:09:38,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:09:38 WrapperNode [2020-10-27 22:09:38,627 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 22:09:38,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 22:09:38,629 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 22:09:38,629 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 22:09:38,645 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:09:38" (1/1) ... [2020-10-27 22:09:38,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:09:38" (1/1) ... [2020-10-27 22:09:38,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:09:38" (1/1) ... [2020-10-27 22:09:38,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:09:38" (1/1) ... [2020-10-27 22:09:38,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:09:38" (1/1) ... [2020-10-27 22:09:38,713 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:09:38" (1/1) ... [2020-10-27 22:09:38,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:09:38" (1/1) ... [2020-10-27 22:09:38,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 22:09:38,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 22:09:38,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 22:09:38,729 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 22:09:38,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:09:38" (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 [2020-10-27 22:09:38,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 22:09:38,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 22:09:38,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-27 22:09:38,818 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 22:09:38,818 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-27 22:09:38,818 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-27 22:09:38,819 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-27 22:09:38,819 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-27 22:09:38,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-27 22:09:38,819 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-27 22:09:38,819 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-27 22:09:38,820 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-27 22:09:38,820 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-27 22:09:38,820 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-27 22:09:38,820 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-27 22:09:38,820 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-27 22:09:38,821 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-27 22:09:38,821 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-27 22:09:38,821 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-27 22:09:38,821 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-27 22:09:38,821 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-27 22:09:38,821 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-27 22:09:38,822 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 22:09:38,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-27 22:09:38,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-27 22:09:38,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-27 22:09:38,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-27 22:09:38,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-27 22:09:38,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-27 22:09:38,823 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-27 22:09:38,823 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-27 22:09:38,823 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-27 22:09:38,823 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-27 22:09:38,823 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-27 22:09:38,824 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-27 22:09:38,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-27 22:09:38,824 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 22:09:38,824 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 22:09:38,824 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 22:09:38,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 22:09:38,825 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 22:09:38,825 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-27 22:09:38,825 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-27 22:09:38,825 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-27 22:09:38,825 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-27 22:09:38,825 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-27 22:09:38,826 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-27 22:09:38,851 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-27 22:09:38,851 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-27 22:09:38,852 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-27 22:09:38,852 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-27 22:09:38,852 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-27 22:09:38,852 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-27 22:09:38,852 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-27 22:09:38,853 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-27 22:09:38,853 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-27 22:09:38,853 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-27 22:09:38,853 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-27 22:09:38,853 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-27 22:09:38,853 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-27 22:09:38,854 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-27 22:09:38,854 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-27 22:09:38,854 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-27 22:09:38,854 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-27 22:09:38,854 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-27 22:09:38,854 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-27 22:09:38,854 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 22:09:38,855 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 22:09:38,855 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 22:09:38,857 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-27 22:09:38,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 22:09:38,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 22:09:38,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 22:09:38,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 22:09:38,858 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-27 22:09:38,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 22:09:38,864 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-27 22:09:38,864 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-27 22:09:38,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 22:09:38,864 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-27 22:09:38,865 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-27 22:09:38,865 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-27 22:09:38,865 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-27 22:09:38,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 22:09:38,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 22:09:38,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 22:09:40,262 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 22:09:40,263 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-27 22:09:40,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:09:40 BoogieIcfgContainer [2020-10-27 22:09:40,266 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 22:09:40,270 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 22:09:40,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 22:09:40,274 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 22:09:40,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 10:09:38" (1/3) ... [2020-10-27 22:09:40,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16e64acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:09:40, skipping insertion in model container [2020-10-27 22:09:40,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:09:38" (2/3) ... [2020-10-27 22:09:40,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16e64acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:09:40, skipping insertion in model container [2020-10-27 22:09:40,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:09:40" (3/3) ... [2020-10-27 22:09:40,278 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product05.cil.c [2020-10-27 22:09:40,296 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 22:09:40,301 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-27 22:09:40,315 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-27 22:09:40,344 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 22:09:40,344 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 22:09:40,344 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 22:09:40,344 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 22:09:40,344 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 22:09:40,344 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 22:09:40,345 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 22:09:40,345 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 22:09:40,366 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states. [2020-10-27 22:09:40,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-27 22:09:40,376 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:09:40,377 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] [2020-10-27 22:09:40,378 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:09:40,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:09:40,384 INFO L82 PathProgramCache]: Analyzing trace with hash -834771578, now seen corresponding path program 1 times [2020-10-27 22:09:40,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:09:40,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2005714500] [2020-10-27 22:09:40,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:09:40,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:40,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:41,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:41,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:43,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:43,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-27 22:09:43,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:09:43,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3033 [2020-10-27 22:09:43,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:43,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:43,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-27 22:09:43,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:43,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 22:09:44,469 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:09:44,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:09:44,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:44,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:44,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:44,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:44,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:44,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-27 22:09:44,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:44,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:44,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:44,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:44,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:44,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:09:44,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:44,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:44,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:44,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:09:44,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:44,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:09:44,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:44,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:44,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:44,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:44,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:44,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:09:44,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:44,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:44,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:44,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:09:44,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:44,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:09:44,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:44,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:44,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:44,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:44,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:44,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:09:44,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:44,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:44,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:44,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:44,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:44,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:09:44,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:44,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:44,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:44,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:44,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:44,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:09:44,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:44,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:44,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:44,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:09:44,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:44,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:09:44,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:44,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:44,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:44,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:44,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:44,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 22:09:44,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:44,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:44,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:44,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:44,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:44,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:09:44,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:44,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:44,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:09:44,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:44,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:44,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 22:09:44,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:44,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:44,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:44,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:44,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:44,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:09:44,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:44,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:44,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:09:44,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:44,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:44,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 22:09:44,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:44,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:44,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:44,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:44,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:44,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:09:44,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:44,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:44,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:09:44,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:44,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:44,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:09:44,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2005714500] [2020-10-27 22:09:44,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:09:44,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-27 22:09:44,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280677990] [2020-10-27 22:09:44,620 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-27 22:09:44,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:09:44,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-27 22:09:44,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 22:09:44,637 INFO L87 Difference]: Start difference. First operand 152 states. Second operand 3 states. [2020-10-27 22:09:46,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:09:46,341 INFO L93 Difference]: Finished difference Result 254 states and 337 transitions. [2020-10-27 22:09:46,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 22:09:46,344 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-10-27 22:09:46,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:09:46,357 INFO L225 Difference]: With dead ends: 254 [2020-10-27 22:09:46,357 INFO L226 Difference]: Without dead ends: 136 [2020-10-27 22:09:46,362 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 22:09:46,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-27 22:09:46,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 106. [2020-10-27 22:09:46,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-27 22:09:46,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 124 transitions. [2020-10-27 22:09:46,469 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 124 transitions. Word has length 53 [2020-10-27 22:09:46,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:09:46,469 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 124 transitions. [2020-10-27 22:09:46,469 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-27 22:09:46,469 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 124 transitions. [2020-10-27 22:09:46,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-27 22:09:46,476 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:09:46,476 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] [2020-10-27 22:09:46,479 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 22:09:46,480 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:09:46,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:09:46,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1713527991, now seen corresponding path program 1 times [2020-10-27 22:09:46,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:09:46,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2005923943] [2020-10-27 22:09:46,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:09:46,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:46,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:46,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:46,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:48,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:48,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-27 22:09:48,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:09:48,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2299 [2020-10-27 22:09:48,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:48,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:09:48,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-27 22:09:48,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 22:09:48,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:49,229 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:09:49,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:09:49,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:49,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:49,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:49,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:49,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:49,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 22:09:49,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:49,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:49,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:49,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:49,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:49,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:09:49,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:49,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:49,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:49,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:09:49,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:49,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:09:49,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:49,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:49,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:49,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:49,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:09:49,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:09:49,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:49,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:49,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:49,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:09:49,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:49,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:09:49,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:49,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:49,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:49,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:49,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:49,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:09:49,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:49,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:49,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:49,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:49,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:49,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:09:49,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:49,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:49,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:49,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:49,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:49,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:09:49,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:49,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:49,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:49,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:09:49,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:49,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:09:49,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:49,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:49,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:49,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:49,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:49,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 22:09:49,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:49,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:49,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:49,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:49,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:49,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:09:49,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:49,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:49,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:09:49,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:49,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:49,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 22:09:49,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:49,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:49,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:49,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:49,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:49,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:09:49,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:49,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:49,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:09:49,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:49,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:49,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 22:09:49,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:49,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:49,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:49,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:49,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:49,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:09:49,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:49,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:49,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:09:49,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:49,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:49,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:09:49,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2005923943] [2020-10-27 22:09:49,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:09:49,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 22:09:49,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671172400] [2020-10-27 22:09:49,351 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 22:09:49,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:09:49,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 22:09:49,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 22:09:49,353 INFO L87 Difference]: Start difference. First operand 106 states and 124 transitions. Second operand 4 states. [2020-10-27 22:09:49,968 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 22:09:50,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:09:50,836 INFO L93 Difference]: Finished difference Result 184 states and 224 transitions. [2020-10-27 22:09:50,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 22:09:50,838 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2020-10-27 22:09:50,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:09:50,841 INFO L225 Difference]: With dead ends: 184 [2020-10-27 22:09:50,841 INFO L226 Difference]: Without dead ends: 120 [2020-10-27 22:09:50,842 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 22:09:50,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-27 22:09:50,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 97. [2020-10-27 22:09:50,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-27 22:09:50,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 112 transitions. [2020-10-27 22:09:50,886 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 112 transitions. Word has length 54 [2020-10-27 22:09:50,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:09:50,886 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 112 transitions. [2020-10-27 22:09:50,887 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 22:09:50,887 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 112 transitions. [2020-10-27 22:09:50,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-27 22:09:50,889 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:09:50,889 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:09:50,889 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 22:09:50,889 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:09:50,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:09:50,890 INFO L82 PathProgramCache]: Analyzing trace with hash -1709789807, now seen corresponding path program 1 times [2020-10-27 22:09:50,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:09:50,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1219110333] [2020-10-27 22:09:50,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:09:50,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:50,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:51,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:51,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:51,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-27 22:09:51,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:09:51,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 876 [2020-10-27 22:09:51,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:51,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 22:09:51,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:09:51,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-27 22:09:51,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:52,285 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:09:52,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:09:52,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:52,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:52,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:52,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:52,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:52,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-27 22:09:52,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:52,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:09:52,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:52,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 22:09:52,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:52,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:09:52,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:52,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:52,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:52,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:09:52,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:52,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:09:52,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:52,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:09:52,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:52,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:09:52,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:52,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:09:52,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:52,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:52,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:52,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:09:52,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:52,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:09:52,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:52,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:09:52,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:52,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:09:52,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:52,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:09:52,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:52,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:52,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:52,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:52,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:52,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:09:52,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:52,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:09:52,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:52,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:09:52,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:52,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:09:52,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:52,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:52,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:52,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:09:52,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:52,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:09:52,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:52,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:09:52,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:52,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:09:52,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:52,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 22:09:52,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:52,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:52,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:52,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:52,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:52,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:09:52,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:52,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:09:52,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:52,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:09:52,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:52,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 22:09:52,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:52,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:52,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:52,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:52,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:52,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:09:52,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:52,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:09:52,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:09:52,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:09:52,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:52,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 22:09:52,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:52,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:52,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:52,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:09:52,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:09:52,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:09:52,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:52,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:09:52,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:09:52,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:09:52,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:09:52,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:09:52,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1219110333] [2020-10-27 22:09:52,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:09:52,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 22:09:52,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79578956] [2020-10-27 22:09:52,489 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 22:09:52,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:09:52,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 22:09:52,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-27 22:09:52,491 INFO L87 Difference]: Start difference. First operand 97 states and 112 transitions. Second operand 7 states. [2020-10-27 22:09:53,034 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 22:09:54,276 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 22:09:54,751 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 22:09:55,175 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 22:09:55,526 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 22:09:56,038 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 22:09:56,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:09:56,657 INFO L93 Difference]: Finished difference Result 261 states and 332 transitions. [2020-10-27 22:09:56,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 22:09:56,658 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2020-10-27 22:09:56,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:09:56,662 INFO L225 Difference]: With dead ends: 261 [2020-10-27 22:09:56,662 INFO L226 Difference]: Without dead ends: 188 [2020-10-27 22:09:56,664 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-27 22:09:56,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-10-27 22:09:56,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 167. [2020-10-27 22:09:56,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-10-27 22:09:56,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 201 transitions. [2020-10-27 22:09:56,753 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 201 transitions. Word has length 58 [2020-10-27 22:09:56,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:09:56,755 INFO L481 AbstractCegarLoop]: Abstraction has 167 states and 201 transitions. [2020-10-27 22:09:56,755 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 22:09:56,756 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 201 transitions. [2020-10-27 22:09:56,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-27 22:09:56,765 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:09:56,766 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] [2020-10-27 22:09:56,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 22:09:56,766 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:09:56,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:09:56,767 INFO L82 PathProgramCache]: Analyzing trace with hash 836908075, now seen corresponding path program 1 times [2020-10-27 22:09:56,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:09:56,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [379107743] [2020-10-27 22:09:56,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:09:56,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:09:56,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:57,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:57,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:58,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:09:59,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:09:59,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-27 22:09:59,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 22:09:59,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3177 [2020-10-27 22:09:59,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:09:59,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:09:59,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-27 22:09:59,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-27 22:09:59,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:00,355 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:10:00,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:10:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:00,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:00,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:00,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:00,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:00,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 22:10:00,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:00,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:10:00,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:00,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:10:00,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:00,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:10:00,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:00,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:00,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:00,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:10:00,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:00,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:10:00,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:00,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:10:00,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:00,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:10:00,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:00,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:10:00,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:00,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:00,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:00,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:10:00,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:00,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:10:00,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:00,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:10:00,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:00,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:10:00,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:00,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:10:00,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:00,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:00,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:00,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:00,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:00,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:10:00,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:00,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:10:00,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:00,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:10:00,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:00,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:10:00,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:00,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:00,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:00,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:10:00,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:00,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:10:00,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:00,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:10:00,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:00,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:10:00,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:00,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 22:10:00,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:00,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:00,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:00,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:00,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:00,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:10:00,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:00,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:10:00,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:00,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:10:00,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:00,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 22:10:00,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:00,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:00,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:00,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:00,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:00,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:10:00,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:00,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:10:00,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:00,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:10:00,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:00,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-27 22:10:00,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:00,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:00,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:00,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:00,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:00,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:10:00,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:00,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:10:00,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:00,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:10:00,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:00,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 22:10:00,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:00,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:00,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:00,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:00,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:00,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:10:00,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:00,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:10:00,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:00,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:10:00,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:00,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:10:00,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [379107743] [2020-10-27 22:10:00,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:10:00,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 22:10:00,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69470005] [2020-10-27 22:10:00,482 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 22:10:00,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:10:00,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 22:10:00,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-27 22:10:00,484 INFO L87 Difference]: Start difference. First operand 167 states and 201 transitions. Second operand 8 states. [2020-10-27 22:10:01,405 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 22:10:02,615 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 22:10:03,002 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-27 22:10:03,457 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 22:10:03,858 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 22:10:04,246 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 22:10:05,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:10:05,045 INFO L93 Difference]: Finished difference Result 441 states and 573 transitions. [2020-10-27 22:10:05,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 22:10:05,045 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 62 [2020-10-27 22:10:05,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:10:05,053 INFO L225 Difference]: With dead ends: 441 [2020-10-27 22:10:05,053 INFO L226 Difference]: Without dead ends: 298 [2020-10-27 22:10:05,058 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-27 22:10:05,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-27 22:10:05,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 265. [2020-10-27 22:10:05,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-10-27 22:10:05,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 324 transitions. [2020-10-27 22:10:05,141 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 324 transitions. Word has length 62 [2020-10-27 22:10:05,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:10:05,141 INFO L481 AbstractCegarLoop]: Abstraction has 265 states and 324 transitions. [2020-10-27 22:10:05,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 22:10:05,141 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 324 transitions. [2020-10-27 22:10:05,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-27 22:10:05,143 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:10:05,144 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] [2020-10-27 22:10:05,144 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 22:10:05,144 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:10:05,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:10:05,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1482741685, now seen corresponding path program 1 times [2020-10-27 22:10:05,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:10:05,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1356981739] [2020-10-27 22:10:05,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:10:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:05,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:05,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:05,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-27 22:10:05,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:05,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-27 22:10:05,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:05,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:10:05,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:10:05,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-27 22:10:05,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:05,677 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:10:05,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:10:05,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:05,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:05,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:05,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:05,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:05,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-27 22:10:05,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:05,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:10:05,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:05,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 22:10:05,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:05,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:10:05,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:05,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:05,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:05,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:10:05,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:05,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:10:05,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:05,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:10:05,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:05,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:10:05,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:05,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:10:05,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:05,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:05,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:05,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:10:05,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:05,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:10:05,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:05,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:10:05,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:05,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:10:05,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:10:05,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:10:05,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:05,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:05,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:05,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:05,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:05,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:10:05,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:05,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:10:05,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:05,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:10:05,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:05,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:10:05,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:05,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:05,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:05,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:10:05,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:05,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:10:05,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:05,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:10:05,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:05,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:10:05,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:05,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-27 22:10:05,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:05,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:05,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:05,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:05,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:05,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:10:05,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:05,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:10:05,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:10:05,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:10:05,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:05,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 22:10:05,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:05,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:05,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:05,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:05,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:05,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:10:05,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:05,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:10:05,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:10:05,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:10:05,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:05,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-27 22:10:05,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:05,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:05,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:05,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:05,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:05,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:10:05,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:05,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:10:05,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:10:05,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:10:05,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:05,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 22:10:05,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:10:05,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:10:05,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:10:05,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:10:05,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:10:05,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:10:05,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:10:05,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:10:05,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:10:05,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:10:05,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:10:05,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:10:05,864 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1356981739] [2020-10-27 22:10:05,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:10:05,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 22:10:05,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074249898] [2020-10-27 22:10:05,866 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 22:10:05,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:10:05,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 22:10:05,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 22:10:05,867 INFO L87 Difference]: Start difference. First operand 265 states and 324 transitions. Second operand 6 states. [2020-10-27 22:10:06,314 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 22:10:07,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:10:07,307 INFO L93 Difference]: Finished difference Result 535 states and 684 transitions. [2020-10-27 22:10:07,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 22:10:07,308 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2020-10-27 22:10:07,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:10:07,323 INFO L225 Difference]: With dead ends: 535 [2020-10-27 22:10:07,323 INFO L226 Difference]: Without dead ends: 294 [2020-10-27 22:10:07,330 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-27 22:10:07,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-10-27 22:10:07,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 265. [2020-10-27 22:10:07,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-10-27 22:10:07,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 320 transitions. [2020-10-27 22:10:07,424 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 320 transitions. Word has length 62 [2020-10-27 22:10:07,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:10:07,424 INFO L481 AbstractCegarLoop]: Abstraction has 265 states and 320 transitions. [2020-10-27 22:10:07,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 22:10:07,425 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 320 transitions. [2020-10-27 22:10:07,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-27 22:10:07,427 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:10:07,427 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:10:07,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 22:10:07,428 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:10:07,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:10:07,428 INFO L82 PathProgramCache]: Analyzing trace with hash -1964647198, now seen corresponding path program 1 times [2020-10-27 22:10:07,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:10:07,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1740606544] [2020-10-27 22:10:07,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:10:07,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 22:10:07,473 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 22:10:07,473 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 22:10:07,477 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 22:10:07,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 10:10:07 BoogieIcfgContainer [2020-10-27 22:10:07,511 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 22:10:07,515 INFO L168 Benchmark]: Toolchain (without parser) took 29453.19 ms. Allocated memory was 167.8 MB in the beginning and 571.5 MB in the end (delta: 403.7 MB). Free memory was 141.3 MB in the beginning and 499.2 MB in the end (delta: -357.9 MB). Peak memory consumption was 46.9 MB. Max. memory is 8.0 GB. [2020-10-27 22:10:07,516 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 167.8 MB. Free memory is still 139.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 22:10:07,521 INFO L168 Benchmark]: CACSL2BoogieTranslator took 561.95 ms. Allocated memory is still 167.8 MB. Free memory was 140.6 MB in the beginning and 120.7 MB in the end (delta: 20.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-27 22:10:07,523 INFO L168 Benchmark]: Boogie Preprocessor took 98.96 ms. Allocated memory is still 167.8 MB. Free memory was 120.7 MB in the beginning and 117.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-27 22:10:07,524 INFO L168 Benchmark]: RCFGBuilder took 1537.49 ms. Allocated memory is still 167.8 MB. Free memory was 117.0 MB in the beginning and 69.2 MB in the end (delta: 47.7 MB). Peak memory consumption was 48.0 MB. Max. memory is 8.0 GB. [2020-10-27 22:10:07,524 INFO L168 Benchmark]: TraceAbstraction took 27241.14 ms. Allocated memory was 167.8 MB in the beginning and 571.5 MB in the end (delta: 403.7 MB). Free memory was 68.7 MB in the beginning and 499.2 MB in the end (delta: -430.5 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 22:10:07,537 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 167.8 MB. Free memory is still 139.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 561.95 ms. Allocated memory is still 167.8 MB. Free memory was 140.6 MB in the beginning and 120.7 MB in the end (delta: 20.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 98.96 ms. Allocated memory is still 167.8 MB. Free memory was 120.7 MB in the beginning and 117.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1537.49 ms. Allocated memory is still 167.8 MB. Free memory was 117.0 MB in the beginning and 69.2 MB in the end (delta: 47.7 MB). Peak memory consumption was 48.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 27241.14 ms. Allocated memory was 167.8 MB in the beginning and 571.5 MB in the end (delta: 403.7 MB). Free memory was 68.7 MB in the beginning and 499.2 MB in the end (delta: -430.5 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L97] int pumpRunning = 0; [L98] int systemActive = 1; [L299] int cleanupTimeShifts = 4; [L564] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L762] int waterLevel = 1; [L763] int methaneLevelCritical = 0; [L372] int retValue_acc ; [L373] int tmp ; [L377] FCALL select_helpers() [L378] FCALL select_features() [L379] CALL, EXPR valid_product() [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L379] RET, EXPR valid_product() [L379] tmp = valid_product() [L381] COND TRUE \read(tmp) [L383] FCALL setup() [L384] CALL runTest() [L366] CALL test() [L235] int splverifierCounter ; [L236] int tmp ; [L237] int tmp___0 ; [L238] int tmp___1 ; [L239] int tmp___2 ; [L242] splverifierCounter = 0 [L244] COND TRUE 1 [L246] COND TRUE splverifierCounter < 4 [L252] tmp = __VERIFIER_nondet_int() [L254] COND TRUE \read(tmp) [L256] CALL waterRise() [L780] COND TRUE waterLevel < 2 [L781] waterLevel = waterLevel + 1 [L256] RET waterRise() [L262] tmp___0 = __VERIFIER_nondet_int() [L264] COND FALSE !(\read(tmp___0)) [L272] tmp___2 = __VERIFIER_nondet_int() [L274] COND TRUE \read(tmp___2) [L287] CALL timeShift() [L105] COND FALSE !(\read(pumpRunning)) [L112] COND TRUE \read(systemActive) [L114] CALL processEnvironment() [L134] int tmp ; [L137] COND FALSE !(\read(pumpRunning)) [L152] FCALL processEnvironment__wrappee__base() [L114] RET processEnvironment() [L120] CALL __utac_acc__Specification3_spec__1() [L843] int tmp ; [L844] int tmp___0 ; [L845] int tmp___1 ; [L849] CALL, EXPR isMethaneLevelCritical() [L801] int retValue_acc ; [L804] retValue_acc = methaneLevelCritical [L805] return (retValue_acc); [L849] RET, EXPR isMethaneLevelCritical() [L849] tmp = isMethaneLevelCritical() [L851] COND FALSE !(\read(tmp)) [L855] CALL, EXPR getWaterLevel() [L833] int retValue_acc ; [L836] retValue_acc = waterLevel [L837] return (retValue_acc); [L855] RET, EXPR getWaterLevel() [L855] tmp___0 = getWaterLevel() [L857] COND TRUE tmp___0 == 2 [L859] CALL, EXPR isPumpRunning() [L186] int retValue_acc ; [L189] retValue_acc = pumpRunning [L190] return (retValue_acc); [L859] RET, EXPR isPumpRunning() [L859] tmp___1 = isPumpRunning() [L861] COND FALSE !(\read(tmp___1)) [L865] CALL __automaton_fail() [L84] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product05.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 219 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 27.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 13.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 530 SDtfs, 662 SDslu, 412 SDs, 0 SdLazy, 1632 SolverSat, 403 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 124 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 7.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=265occurred 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, 5 MinimizatonAttempts, 136 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 12.5s InterpolantComputationTime, 359 NumberOfCodeBlocks, 359 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 284 ConstructedInterpolants, 0 QuantifiedInterpolants, 83350 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...