/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_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 22:12:29,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 22:12:29,542 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 22:12:29,606 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 22:12:29,606 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 22:12:29,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 22:12:29,616 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 22:12:29,621 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 22:12:29,625 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 22:12:29,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 22:12:29,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 22:12:29,634 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 22:12:29,634 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 22:12:29,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 22:12:29,640 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 22:12:29,643 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 22:12:29,644 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 22:12:29,649 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 22:12:29,667 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 22:12:29,670 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 22:12:29,672 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 22:12:29,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 22:12:29,675 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 22:12:29,676 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 22:12:29,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 22:12:29,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 22:12:29,681 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 22:12:29,686 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 22:12:29,686 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 22:12:29,687 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 22:12:29,688 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 22:12:29,689 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 22:12:29,690 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 22:12:29,691 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 22:12:29,693 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 22:12:29,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 22:12:29,695 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 22:12:29,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 22:12:29,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 22:12:29,696 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 22:12:29,697 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 22:12:29,705 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 22:12:29,744 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 22:12:29,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 22:12:29,746 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 22:12:29,746 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 22:12:29,746 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 22:12:29,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 22:12:29,747 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 22:12:29,749 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 22:12:29,749 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 22:12:29,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 22:12:29,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 22:12:29,751 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 22:12:29,751 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 22:12:29,751 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 22:12:29,751 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 22:12:29,752 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 22:12:29,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 22:12:29,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 22:12:29,752 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 22:12:29,752 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 22:12:29,753 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 22:12:29,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 22:12:29,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 22:12:29,753 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 22:12:29,753 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 22:12:29,754 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 22:12:29,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 22:12:29,754 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 22:12:29,754 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 22:12:29,754 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 22:12:30,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 22:12:30,213 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 22:12:30,216 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 22:12:30,217 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 22:12:30,218 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 22:12:30,219 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product52.cil.c [2020-10-27 22:12:30,291 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2ef323563/afcca5912d814a14a379d4ba13d14bf1/FLAG444935868 [2020-10-27 22:12:30,967 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 22:12:30,968 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product52.cil.c [2020-10-27 22:12:30,982 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2ef323563/afcca5912d814a14a379d4ba13d14bf1/FLAG444935868 [2020-10-27 22:12:31,274 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2ef323563/afcca5912d814a14a379d4ba13d14bf1 [2020-10-27 22:12:31,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 22:12:31,286 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 22:12:31,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 22:12:31,290 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 22:12:31,294 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 22:12:31,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:12:31" (1/1) ... [2020-10-27 22:12:31,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a8fb3d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:12:31, skipping insertion in model container [2020-10-27 22:12:31,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:12:31" (1/1) ... [2020-10-27 22:12:31,314 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 22:12:31,395 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 22:12:31,792 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:12:31,803 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 22:12:31,891 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:12:31,935 INFO L208 MainTranslator]: Completed translation [2020-10-27 22:12:31,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:12:31 WrapperNode [2020-10-27 22:12:31,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 22:12:31,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 22:12:31,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 22:12:31,939 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 22:12:31,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:12:31" (1/1) ... [2020-10-27 22:12:31,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:12:31" (1/1) ... [2020-10-27 22:12:31,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:12:31" (1/1) ... [2020-10-27 22:12:31,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:12:31" (1/1) ... [2020-10-27 22:12:32,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:12:31" (1/1) ... [2020-10-27 22:12:32,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:12:31" (1/1) ... [2020-10-27 22:12:32,033 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:12:31" (1/1) ... [2020-10-27 22:12:32,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 22:12:32,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 22:12:32,043 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 22:12:32,043 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 22:12:32,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:12:31" (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 22:12:32,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 22:12:32,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 22:12:32,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-27 22:12:32,130 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 22:12:32,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-27 22:12:32,130 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-27 22:12:32,130 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-27 22:12:32,130 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-27 22:12:32,130 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-27 22:12:32,130 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-27 22:12:32,131 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-27 22:12:32,131 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-27 22:12:32,131 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-27 22:12:32,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-27 22:12:32,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-27 22:12:32,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-27 22:12:32,132 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-27 22:12:32,132 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-27 22:12:32,132 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-27 22:12:32,132 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-27 22:12:32,132 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-27 22:12:32,132 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-27 22:12:32,133 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-27 22:12:32,133 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-27 22:12:32,133 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-27 22:12:32,133 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-27 22:12:32,133 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-27 22:12:32,133 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-27 22:12:32,133 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-27 22:12:32,134 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-27 22:12:32,134 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-27 22:12:32,134 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-27 22:12:32,134 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-27 22:12:32,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-27 22:12:32,134 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-27 22:12:32,135 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-27 22:12:32,135 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-27 22:12:32,135 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-27 22:12:32,135 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-27 22:12:32,135 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-27 22:12:32,135 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-27 22:12:32,135 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-27 22:12:32,136 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 22:12:32,136 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 22:12:32,136 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 22:12:32,136 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 22:12:32,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 22:12:32,136 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 22:12:32,137 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-27 22:12:32,137 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-27 22:12:32,137 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-27 22:12:32,137 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-27 22:12:32,137 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-27 22:12:32,137 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-27 22:12:32,137 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-27 22:12:32,137 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-27 22:12:32,138 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-27 22:12:32,138 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-27 22:12:32,138 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-27 22:12:32,138 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-27 22:12:32,138 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 22:12:32,139 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 22:12:32,139 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-27 22:12:32,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 22:12:32,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 22:12:32,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 22:12:32,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 22:12:32,140 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-27 22:12:32,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 22:12:32,140 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-27 22:12:32,140 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-27 22:12:32,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 22:12:32,140 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-27 22:12:32,140 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-27 22:12:32,141 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-27 22:12:32,141 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-27 22:12:32,141 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-27 22:12:32,141 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-27 22:12:32,141 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-27 22:12:32,141 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-27 22:12:32,141 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-27 22:12:32,142 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-27 22:12:32,142 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-27 22:12:32,142 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-27 22:12:32,142 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-27 22:12:32,142 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-27 22:12:32,142 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-27 22:12:32,143 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-27 22:12:32,143 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-27 22:12:32,143 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-27 22:12:32,143 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-27 22:12:32,143 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-27 22:12:32,143 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-27 22:12:32,143 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-27 22:12:32,144 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-27 22:12:32,144 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-27 22:12:32,144 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 22:12:32,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 22:12:32,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 22:12:32,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 22:12:33,577 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 22:12:33,579 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-27 22:12:33,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:12:33 BoogieIcfgContainer [2020-10-27 22:12:33,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 22:12:33,587 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 22:12:33,587 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 22:12:33,591 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 22:12:33,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 10:12:31" (1/3) ... [2020-10-27 22:12:33,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b18a868 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:12:33, skipping insertion in model container [2020-10-27 22:12:33,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:12:31" (2/3) ... [2020-10-27 22:12:33,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b18a868 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:12:33, skipping insertion in model container [2020-10-27 22:12:33,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:12:33" (3/3) ... [2020-10-27 22:12:33,597 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product52.cil.c [2020-10-27 22:12:33,612 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 22:12:33,619 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-27 22:12:33,639 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-27 22:12:33,682 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 22:12:33,683 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 22:12:33,684 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 22:12:33,684 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 22:12:33,684 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 22:12:33,684 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 22:12:33,684 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 22:12:33,685 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 22:12:33,717 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states. [2020-10-27 22:12:33,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-27 22:12:33,736 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:12:33,737 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 22:12:33,737 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 22:12:33,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:12:33,746 INFO L82 PathProgramCache]: Analyzing trace with hash -209825973, now seen corresponding path program 1 times [2020-10-27 22:12:33,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:12:33,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [87775702] [2020-10-27 22:12:33,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:12:34,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:34,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:34,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:35,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:37,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:37,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-27 22:12:37,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:12:37,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3425 [2020-10-27 22:12:37,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:37,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:37,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-27 22:12:37,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:37,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-10-27 22:12:38,047 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:12:38,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:12:38,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:38,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:38,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:38,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:38,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:38,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-27 22:12:38,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:38,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:38,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:38,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:38,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:38,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:12:38,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:38,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:38,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:38,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:12:38,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:38,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:12:38,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:38,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:38,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:38,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:38,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:38,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:12:38,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:38,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:38,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:38,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:12:38,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:38,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:12:38,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:38,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:38,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:38,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:38,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:38,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:12:38,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:38,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:38,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:38,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:38,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:38,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:12:38,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:38,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:38,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:38,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:38,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:38,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:12:38,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:38,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:38,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:38,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:12:38,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:38,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:12:38,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:38,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:38,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:38,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:38,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:38,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 22:12:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:38,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:38,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:38,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:38,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:38,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:12:38,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:38,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:38,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:12:38,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:38,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:38,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 22:12:38,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:38,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:38,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:38,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:38,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:38,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:12:38,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:38,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:38,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:12:38,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:38,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:38,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 22:12:38,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:38,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:38,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:38,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:38,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:38,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:12:38,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:38,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:38,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:12:38,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:38,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:38,257 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 22:12:38,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [87775702] [2020-10-27 22:12:38,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:12:38,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-27 22:12:38,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773728496] [2020-10-27 22:12:38,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-27 22:12:38,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:12:38,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-27 22:12:38,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 22:12:38,285 INFO L87 Difference]: Start difference. First operand 194 states. Second operand 3 states. [2020-10-27 22:12:39,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:12:39,738 INFO L93 Difference]: Finished difference Result 337 states and 437 transitions. [2020-10-27 22:12:39,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 22:12:39,740 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-10-27 22:12:39,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:12:39,757 INFO L225 Difference]: With dead ends: 337 [2020-10-27 22:12:39,758 INFO L226 Difference]: Without dead ends: 180 [2020-10-27 22:12:39,763 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 22:12:39,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-10-27 22:12:39,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 145. [2020-10-27 22:12:39,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-10-27 22:12:39,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 170 transitions. [2020-10-27 22:12:39,864 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 170 transitions. Word has length 53 [2020-10-27 22:12:39,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:12:39,864 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 170 transitions. [2020-10-27 22:12:39,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-27 22:12:39,865 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 170 transitions. [2020-10-27 22:12:39,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-27 22:12:39,869 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:12:39,869 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 22:12:39,869 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 22:12:39,869 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 22:12:39,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:12:39,870 INFO L82 PathProgramCache]: Analyzing trace with hash 391160786, now seen corresponding path program 1 times [2020-10-27 22:12:39,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:12:39,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [716460737] [2020-10-27 22:12:39,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:12:39,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:39,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:39,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:40,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:43,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:43,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-27 22:12:43,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:12:43,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3676 [2020-10-27 22:12:43,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:43,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:12:43,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-27 22:12:43,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 22:12:43,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:43,987 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:12:43,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:12:43,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:44,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:44,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:44,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:44,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:44,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-27 22:12:44,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:44,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:44,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:44,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:44,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:44,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:12:44,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:44,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:44,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:44,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:12:44,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:44,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:12:44,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:44,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:44,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:44,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:44,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:44,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:12:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:44,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:44,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:44,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:12:44,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:44,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:12:44,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:44,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:44,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:44,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:44,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:44,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:12:44,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:44,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:44,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:44,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:44,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:44,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:12:44,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:44,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:44,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:44,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:44,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:44,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:12:44,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:44,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:44,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:44,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:12:44,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:44,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:12:44,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:44,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:44,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:44,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:44,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:44,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 22:12:44,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:44,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:44,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:44,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:44,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:44,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:12:44,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:44,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:44,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:12:44,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:44,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:44,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 22:12:44,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:44,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:44,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:44,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:44,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:44,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:12:44,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:44,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:44,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:12:44,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:44,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:44,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 22:12:44,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:44,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:44,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:44,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:44,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:44,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:12:44,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:44,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:44,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:12:44,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:44,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:44,098 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 22:12:44,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [716460737] [2020-10-27 22:12:44,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:12:44,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 22:12:44,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235029904] [2020-10-27 22:12:44,101 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 22:12:44,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:12:44,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 22:12:44,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 22:12:44,102 INFO L87 Difference]: Start difference. First operand 145 states and 170 transitions. Second operand 4 states. [2020-10-27 22:12:44,593 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 22:12:45,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:12:45,565 INFO L93 Difference]: Finished difference Result 257 states and 312 transitions. [2020-10-27 22:12:45,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 22:12:45,566 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2020-10-27 22:12:45,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:12:45,569 INFO L225 Difference]: With dead ends: 257 [2020-10-27 22:12:45,569 INFO L226 Difference]: Without dead ends: 164 [2020-10-27 22:12:45,571 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 22:12:45,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-10-27 22:12:45,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 136. [2020-10-27 22:12:45,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-27 22:12:45,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 158 transitions. [2020-10-27 22:12:45,629 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 158 transitions. Word has length 54 [2020-10-27 22:12:45,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:12:45,629 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 158 transitions. [2020-10-27 22:12:45,629 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 22:12:45,630 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 158 transitions. [2020-10-27 22:12:45,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-27 22:12:45,632 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:12:45,632 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] [2020-10-27 22:12:45,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 22:12:45,633 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 22:12:45,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:12:45,633 INFO L82 PathProgramCache]: Analyzing trace with hash -602684757, now seen corresponding path program 1 times [2020-10-27 22:12:45,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:12:45,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [920778137] [2020-10-27 22:12:45,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:12:45,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:45,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:46,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:47,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:47,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 22:12:47,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:12:47,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1418 [2020-10-27 22:12:47,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:47,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 22:12:47,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:12:47,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-27 22:12:47,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:47,450 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:12:47,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:12:47,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:47,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:47,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:47,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:47,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:47,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-27 22:12:47,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:47,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:12:47,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:47,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 22:12:47,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:47,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:12:47,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:47,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:47,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:47,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:12:47,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:47,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:12:47,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:47,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:12:47,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:47,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:12:47,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:47,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:12:47,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:47,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:47,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:47,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:12:47,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:47,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:12:47,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:47,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:12:47,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:47,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:12:47,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:47,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:12:47,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:47,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:47,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:47,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:47,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:47,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:12:47,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:47,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:12:47,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:47,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:12:47,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:12:47,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:12:47,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:47,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:47,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:47,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:12:47,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:47,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:12:47,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:47,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:12:47,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:47,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:12:47,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:12:47,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 22:12:47,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:47,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:47,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:47,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:47,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:47,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:12:47,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:47,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:47,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:12:47,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:47,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:47,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 22:12:47,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:47,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:47,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:47,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:47,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:47,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:12:47,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:47,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:47,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:12:47,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:47,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:47,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 22:12:47,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:47,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:47,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:47,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:47,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:47,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:12:47,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:47,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:47,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:12:47,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:47,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:47,680 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 22:12:47,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [920778137] [2020-10-27 22:12:47,682 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:12:47,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 22:12:47,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445190918] [2020-10-27 22:12:47,683 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 22:12:47,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:12:47,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 22:12:47,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 22:12:47,685 INFO L87 Difference]: Start difference. First operand 136 states and 158 transitions. Second operand 5 states. [2020-10-27 22:12:48,024 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 22:12:49,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:12:49,856 INFO L93 Difference]: Finished difference Result 400 states and 490 transitions. [2020-10-27 22:12:49,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 22:12:49,857 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2020-10-27 22:12:49,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:12:49,861 INFO L225 Difference]: With dead ends: 400 [2020-10-27 22:12:49,861 INFO L226 Difference]: Without dead ends: 288 [2020-10-27 22:12:49,862 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 22:12:49,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-10-27 22:12:49,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 237. [2020-10-27 22:12:49,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-10-27 22:12:49,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 282 transitions. [2020-10-27 22:12:49,998 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 282 transitions. Word has length 59 [2020-10-27 22:12:49,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:12:49,999 INFO L481 AbstractCegarLoop]: Abstraction has 237 states and 282 transitions. [2020-10-27 22:12:49,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 22:12:49,999 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 282 transitions. [2020-10-27 22:12:50,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-27 22:12:50,011 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:12:50,011 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] [2020-10-27 22:12:50,011 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 22:12:50,012 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 22:12:50,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:12:50,012 INFO L82 PathProgramCache]: Analyzing trace with hash 901865157, now seen corresponding path program 1 times [2020-10-27 22:12:50,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:12:50,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2021744567] [2020-10-27 22:12:50,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:12:50,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:50,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:51,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:51,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-27 22:12:51,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:51,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1111 [2020-10-27 22:12:51,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:51,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 22:12:51,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:12:51,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-27 22:12:51,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:51,558 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:12:51,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:12:51,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:51,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:51,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:51,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:51,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:51,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-27 22:12:51,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:51,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:12:51,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:51,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 22:12:51,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:51,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:12:51,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:51,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:51,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:51,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:12:51,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:51,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:12:51,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:51,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:12:51,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:51,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:12:51,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:51,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:12:51,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:51,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:51,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:51,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:12:51,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:51,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:12:51,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:51,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:12:51,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:51,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:12:51,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:51,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:12:51,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:51,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:51,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:51,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:51,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:51,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:12:51,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:51,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:12:51,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:51,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:12:51,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:51,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:12:51,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:51,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:51,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:51,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:12:51,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:51,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:12:51,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:51,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:12:51,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:51,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:12:51,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:51,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 22:12:51,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:51,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:51,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:51,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:12:51,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:51,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:12:51,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:51,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:12:51,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:51,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:12:51,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:12:51,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 22:12:51,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:51,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:51,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:51,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:51,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:51,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:12:51,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:51,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:12:51,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:51,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:12:51,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:12:51,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 22:12:51,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:51,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:51,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:51,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:51,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:51,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:12:51,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:51,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:12:51,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:12:51,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:12:51,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:12:51,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 22:12:51,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:12:51,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:12:51,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:12:51,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:12:51,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:12:51,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:12:51,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:12:51,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:12:51,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:12:51,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:12:51,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:12:51,824 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 22:12:51,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2021744567] [2020-10-27 22:12:51,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:12:51,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 22:12:51,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000937090] [2020-10-27 22:12:51,827 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 22:12:51,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:12:51,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 22:12:51,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-27 22:12:51,830 INFO L87 Difference]: Start difference. First operand 237 states and 282 transitions. Second operand 9 states. [2020-10-27 22:12:52,370 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 22:12:54,178 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 22:12:54,649 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 22:12:55,039 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 22:12:55,347 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 22:12:55,843 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 22:12:56,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:12:56,961 INFO L93 Difference]: Finished difference Result 751 states and 1011 transitions. [2020-10-27 22:12:56,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 22:12:56,962 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2020-10-27 22:12:56,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:12:56,966 INFO L225 Difference]: With dead ends: 751 [2020-10-27 22:12:56,967 INFO L226 Difference]: Without dead ends: 538 [2020-10-27 22:12:56,968 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-10-27 22:12:56,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2020-10-27 22:12:57,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 438. [2020-10-27 22:12:57,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 438 states. [2020-10-27 22:12:57,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 537 transitions. [2020-10-27 22:12:57,140 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 537 transitions. Word has length 64 [2020-10-27 22:12:57,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:12:57,141 INFO L481 AbstractCegarLoop]: Abstraction has 438 states and 537 transitions. [2020-10-27 22:12:57,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 22:12:57,142 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 537 transitions. [2020-10-27 22:12:57,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-27 22:12:57,147 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:12:57,148 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] [2020-10-27 22:12:57,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 22:12:57,148 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 22:12:57,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:12:57,149 INFO L82 PathProgramCache]: Analyzing trace with hash 915809535, now seen corresponding path program 1 times [2020-10-27 22:12:57,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:12:57,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [456870888] [2020-10-27 22:12:57,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:12:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 22:12:57,207 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 22:12:57,207 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 22:12:57,212 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 22:12:57,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 10:12:57 BoogieIcfgContainer [2020-10-27 22:12:57,246 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 22:12:57,248 INFO L168 Benchmark]: Toolchain (without parser) took 25967.46 ms. Allocated memory was 152.0 MB in the beginning and 486.5 MB in the end (delta: 334.5 MB). Free memory was 126.0 MB in the beginning and 262.5 MB in the end (delta: -136.5 MB). Peak memory consumption was 198.6 MB. Max. memory is 8.0 GB. [2020-10-27 22:12:57,249 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 152.0 MB. Free memory is still 124.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 22:12:57,251 INFO L168 Benchmark]: CACSL2BoogieTranslator took 648.76 ms. Allocated memory is still 152.0 MB. Free memory was 125.3 MB in the beginning and 103.9 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-27 22:12:57,252 INFO L168 Benchmark]: Boogie Preprocessor took 102.91 ms. Allocated memory is still 152.0 MB. Free memory was 103.9 MB in the beginning and 99.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-27 22:12:57,258 INFO L168 Benchmark]: RCFGBuilder took 1539.63 ms. Allocated memory was 152.0 MB in the beginning and 182.5 MB in the end (delta: 30.4 MB). Free memory was 99.9 MB in the beginning and 157.7 MB in the end (delta: -57.8 MB). Peak memory consumption was 55.0 MB. Max. memory is 8.0 GB. [2020-10-27 22:12:57,259 INFO L168 Benchmark]: TraceAbstraction took 23659.54 ms. Allocated memory was 182.5 MB in the beginning and 486.5 MB in the end (delta: 304.1 MB). Free memory was 157.2 MB in the beginning and 262.5 MB in the end (delta: -105.3 MB). Peak memory consumption was 198.3 MB. Max. memory is 8.0 GB. [2020-10-27 22:12:57,269 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 152.0 MB. Free memory is still 124.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 648.76 ms. Allocated memory is still 152.0 MB. Free memory was 125.3 MB in the beginning and 103.9 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 102.91 ms. Allocated memory is still 152.0 MB. Free memory was 103.9 MB in the beginning and 99.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1539.63 ms. Allocated memory was 152.0 MB in the beginning and 182.5 MB in the end (delta: 30.4 MB). Free memory was 99.9 MB in the beginning and 157.7 MB in the end (delta: -57.8 MB). Peak memory consumption was 55.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 23659.54 ms. Allocated memory was 182.5 MB in the beginning and 486.5 MB in the end (delta: 304.1 MB). Free memory was 157.2 MB in the beginning and 262.5 MB in the end (delta: -105.3 MB). Peak memory consumption was 198.3 MB. 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: [L86] int waterLevel = 1; [L87] int methaneLevelCritical = 0; [L358] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L561] int pumpRunning = 0; [L562] int systemActive = 1; [L898] int cleanupTimeShifts = 4; [L971] int retValue_acc ; [L972] int tmp ; [L976] FCALL select_helpers() [L977] FCALL select_features() [L978] CALL, EXPR valid_product() [L889] int retValue_acc ; [L892] retValue_acc = 1 [L893] return (retValue_acc); [L978] RET, EXPR valid_product() [L978] tmp = valid_product() [L980] COND TRUE \read(tmp) [L982] FCALL setup() [L983] CALL runTest() [L965] CALL test() [L783] int splverifierCounter ; [L784] int tmp ; [L785] int tmp___0 ; [L786] int tmp___1 ; [L787] int tmp___2 ; [L790] splverifierCounter = 0 [L792] COND TRUE 1 [L794] COND TRUE splverifierCounter < 4 [L800] tmp = __VERIFIER_nondet_int() [L802] COND TRUE \read(tmp) [L804] CALL waterRise() [L104] COND TRUE waterLevel < 2 [L105] waterLevel = waterLevel + 1 [L804] RET waterRise() [L810] tmp___0 = __VERIFIER_nondet_int() [L812] COND FALSE !(\read(tmp___0)) [L820] tmp___2 = __VERIFIER_nondet_int() [L822] COND FALSE !(\read(tmp___2)) [L828] tmp___1 = __VERIFIER_nondet_int() [L830] COND TRUE \read(tmp___1) [L832] CALL stopSystem() [L761] COND FALSE !(\read(pumpRunning)) [L768] systemActive = 0 [L832] RET stopSystem() [L839] CALL timeShift() [L568] COND FALSE !(\read(pumpRunning)) [L575] COND FALSE !(\read(systemActive)) [L583] CALL __utac_acc__Specification3_spec__1() [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L53] CALL, EXPR isMethaneLevelCritical() [L125] int retValue_acc ; [L128] retValue_acc = methaneLevelCritical [L129] return (retValue_acc); [L53] RET, EXPR isMethaneLevelCritical() [L53] tmp = isMethaneLevelCritical() [L55] COND FALSE !(\read(tmp)) [L59] CALL, EXPR getWaterLevel() [L157] int retValue_acc ; [L160] retValue_acc = waterLevel [L161] return (retValue_acc); [L59] RET, EXPR getWaterLevel() [L59] tmp___0 = getWaterLevel() [L61] COND TRUE tmp___0 == 2 [L63] CALL, EXPR isPumpRunning() [L675] int retValue_acc ; [L678] retValue_acc = pumpRunning [L679] return (retValue_acc); [L63] RET, EXPR isPumpRunning() [L63] tmp___1 = isPumpRunning() [L65] COND FALSE !(\read(tmp___1)) [L69] CALL __automaton_fail() [L855] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product52.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 260 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 23.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 10.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 555 SDtfs, 762 SDslu, 353 SDs, 0 SdLazy, 1717 SolverSat, 427 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=438occurred 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: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 214 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 12.1s InterpolantComputationTime, 298 NumberOfCodeBlocks, 298 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 226 ConstructedInterpolants, 0 QuantifiedInterpolants, 68692 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...