/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_product59.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 22:13:18,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 22:13:18,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 22:13:18,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 22:13:18,594 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 22:13:18,595 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 22:13:18,597 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 22:13:18,600 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 22:13:18,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 22:13:18,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 22:13:18,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 22:13:18,606 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 22:13:18,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 22:13:18,607 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 22:13:18,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 22:13:18,610 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 22:13:18,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 22:13:18,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 22:13:18,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 22:13:18,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 22:13:18,619 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 22:13:18,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 22:13:18,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 22:13:18,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 22:13:18,630 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 22:13:18,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 22:13:18,631 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 22:13:18,632 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 22:13:18,636 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 22:13:18,638 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 22:13:18,638 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 22:13:18,639 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 22:13:18,643 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 22:13:18,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 22:13:18,646 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 22:13:18,646 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 22:13:18,647 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 22:13:18,648 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 22:13:18,648 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 22:13:18,649 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 22:13:18,652 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 22:13:18,653 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 22:13:18,721 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 22:13:18,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 22:13:18,726 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 22:13:18,726 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 22:13:18,726 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 22:13:18,727 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 22:13:18,727 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 22:13:18,727 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 22:13:18,728 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 22:13:18,728 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 22:13:18,729 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 22:13:18,729 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 22:13:18,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 22:13:18,730 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 22:13:18,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 22:13:18,730 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 22:13:18,731 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 22:13:18,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 22:13:18,731 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 22:13:18,731 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 22:13:18,732 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 22:13:18,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 22:13:18,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 22:13:18,733 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 22:13:18,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 22:13:18,733 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 22:13:18,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 22:13:18,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 22:13:18,734 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 22:13:18,734 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 22:13:19,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 22:13:19,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 22:13:19,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 22:13:19,179 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 22:13:19,180 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 22:13:19,182 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product59.cil.c [2020-10-27 22:13:19,264 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/921b5f96e/1c79f4e7654e4375b08634070e2755c7/FLAGcaa1d2e80 [2020-10-27 22:13:19,958 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 22:13:19,960 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product59.cil.c [2020-10-27 22:13:19,978 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/921b5f96e/1c79f4e7654e4375b08634070e2755c7/FLAGcaa1d2e80 [2020-10-27 22:13:20,212 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/921b5f96e/1c79f4e7654e4375b08634070e2755c7 [2020-10-27 22:13:20,217 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 22:13:20,225 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 22:13:20,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 22:13:20,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 22:13:20,232 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 22:13:20,232 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:13:20" (1/1) ... [2020-10-27 22:13:20,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@253b7702 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:13:20, skipping insertion in model container [2020-10-27 22:13:20,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:13:20" (1/1) ... [2020-10-27 22:13:20,248 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 22:13:20,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 22:13:20,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:13:20,731 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 22:13:20,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:13:20,888 INFO L208 MainTranslator]: Completed translation [2020-10-27 22:13:20,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:13:20 WrapperNode [2020-10-27 22:13:20,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 22:13:20,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 22:13:20,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 22:13:20,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 22:13:20,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:13:20" (1/1) ... [2020-10-27 22:13:20,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:13:20" (1/1) ... [2020-10-27 22:13:20,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:13:20" (1/1) ... [2020-10-27 22:13:20,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:13:20" (1/1) ... [2020-10-27 22:13:21,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:13:20" (1/1) ... [2020-10-27 22:13:21,034 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:13:20" (1/1) ... [2020-10-27 22:13:21,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:13:20" (1/1) ... [2020-10-27 22:13:21,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 22:13:21,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 22:13:21,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 22:13:21,051 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 22:13:21,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:13:20" (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 22:13:21,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 22:13:21,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 22:13:21,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-27 22:13:21,141 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 22:13:21,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-27 22:13:21,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-27 22:13:21,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-27 22:13:21,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-27 22:13:21,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-27 22:13:21,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-27 22:13:21,142 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-27 22:13:21,142 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-27 22:13:21,143 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-27 22:13:21,143 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-27 22:13:21,143 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-27 22:13:21,143 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-27 22:13:21,143 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-27 22:13:21,143 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-27 22:13:21,144 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-27 22:13:21,144 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-27 22:13:21,144 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-27 22:13:21,144 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-27 22:13:21,144 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 22:13:21,145 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-27 22:13:21,145 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-27 22:13:21,145 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-27 22:13:21,145 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-27 22:13:21,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-27 22:13:21,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-27 22:13:21,146 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-27 22:13:21,146 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-27 22:13:21,146 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-27 22:13:21,146 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-27 22:13:21,146 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-27 22:13:21,146 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-10-27 22:13:21,147 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-27 22:13:21,147 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-27 22:13:21,147 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-27 22:13:21,147 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-27 22:13:21,147 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-27 22:13:21,147 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-27 22:13:21,147 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-27 22:13:21,148 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-27 22:13:21,148 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 22:13:21,148 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 22:13:21,148 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 22:13:21,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 22:13:21,148 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 22:13:21,149 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-27 22:13:21,149 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 22:13:21,149 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 22:13:21,149 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-27 22:13:21,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 22:13:21,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 22:13:21,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 22:13:21,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 22:13:21,150 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-27 22:13:21,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 22:13:21,150 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-27 22:13:21,150 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-27 22:13:21,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 22:13:21,151 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-27 22:13:21,151 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-27 22:13:21,151 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-27 22:13:21,151 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-27 22:13:21,151 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-27 22:13:21,152 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-27 22:13:21,152 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-27 22:13:21,152 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-27 22:13:21,152 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-27 22:13:21,152 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-27 22:13:21,152 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-27 22:13:21,152 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-27 22:13:21,153 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-27 22:13:21,153 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-27 22:13:21,153 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-27 22:13:21,153 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-27 22:13:21,153 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-27 22:13:21,153 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-27 22:13:21,153 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-27 22:13:21,154 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-27 22:13:21,154 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-27 22:13:21,154 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 22:13:21,154 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-27 22:13:21,154 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-27 22:13:21,154 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-27 22:13:21,155 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-27 22:13:21,155 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-27 22:13:21,155 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-27 22:13:21,155 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-27 22:13:21,155 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-27 22:13:21,155 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-27 22:13:21,155 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-27 22:13:21,156 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-27 22:13:21,156 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-27 22:13:21,156 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-10-27 22:13:21,156 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-27 22:13:21,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 22:13:21,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 22:13:21,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 22:13:22,524 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 22:13:22,525 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-27 22:13:22,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:13:22 BoogieIcfgContainer [2020-10-27 22:13:22,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 22:13:22,530 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 22:13:22,530 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 22:13:22,533 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 22:13:22,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 10:13:20" (1/3) ... [2020-10-27 22:13:22,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f71fca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:13:22, skipping insertion in model container [2020-10-27 22:13:22,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:13:20" (2/3) ... [2020-10-27 22:13:22,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f71fca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:13:22, skipping insertion in model container [2020-10-27 22:13:22,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:13:22" (3/3) ... [2020-10-27 22:13:22,537 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product59.cil.c [2020-10-27 22:13:22,548 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 22:13:22,554 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-27 22:13:22,567 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-27 22:13:22,599 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 22:13:22,599 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 22:13:22,599 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 22:13:22,599 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 22:13:22,599 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 22:13:22,599 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 22:13:22,600 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 22:13:22,600 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 22:13:22,622 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states. [2020-10-27 22:13:22,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-27 22:13:22,633 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:13:22,634 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 22:13:22,635 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 22:13:22,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:13:22,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1471526866, now seen corresponding path program 1 times [2020-10-27 22:13:22,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:13:22,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [6847999] [2020-10-27 22:13:22,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:13:22,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:23,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:23,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:24,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:26,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:26,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-27 22:13:26,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:13:26,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3177 [2020-10-27 22:13:26,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:26,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:26,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-27 22:13:26,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:26,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-27 22:13:26,584 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:13:26,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:13:26,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:26,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:26,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:26,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:13:26,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:26,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-27 22:13:26,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:26,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:26,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:13:26,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:26,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:26,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:13:26,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:26,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:26,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:26,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:13:26,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:26,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:13:26,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:26,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:26,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:13:26,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:26,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:26,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:13:26,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:26,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:26,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:26,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:13:26,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:26,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:13:26,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:26,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:26,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:13:26,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:26,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:26,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:13:26,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:26,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:26,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:26,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:13:26,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:26,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:13:26,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:26,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:26,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:13:26,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:26,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:26,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:13:26,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:26,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:26,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:26,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:13:26,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:26,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:13:26,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:26,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:26,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:13:26,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:26,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 22 [2020-10-27 22:13:26,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 22:13:26,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:26,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:26,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:26,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:13:26,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:26,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:13:26,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:26,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:26,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:13:26,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:26,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:26,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 22:13:26,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:26,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:26,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:26,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:13:26,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:26,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:13:26,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:26,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:26,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:13:26,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:26,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 22:13:26,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 22:13:26,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:26,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:26,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:26,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:13:26,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:26,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:13:26,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:26,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:26,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:13:26,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:26,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:26,824 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 22:13:26,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [6847999] [2020-10-27 22:13:26,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:13:26,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-27 22:13:26,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394987991] [2020-10-27 22:13:26,836 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-27 22:13:26,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:13:26,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-27 22:13:26,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 22:13:26,853 INFO L87 Difference]: Start difference. First operand 199 states. Second operand 3 states. [2020-10-27 22:13:28,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:13:28,373 INFO L93 Difference]: Finished difference Result 354 states and 457 transitions. [2020-10-27 22:13:28,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 22:13:28,375 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-10-27 22:13:28,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:13:28,389 INFO L225 Difference]: With dead ends: 354 [2020-10-27 22:13:28,389 INFO L226 Difference]: Without dead ends: 189 [2020-10-27 22:13:28,394 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 22:13:28,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-10-27 22:13:28,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 153. [2020-10-27 22:13:28,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-10-27 22:13:28,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 180 transitions. [2020-10-27 22:13:28,523 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 180 transitions. Word has length 53 [2020-10-27 22:13:28,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:13:28,523 INFO L481 AbstractCegarLoop]: Abstraction has 153 states and 180 transitions. [2020-10-27 22:13:28,523 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-27 22:13:28,524 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 180 transitions. [2020-10-27 22:13:28,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-27 22:13:28,528 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:13:28,528 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 22:13:28,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 22:13:28,529 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 22:13:28,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:13:28,530 INFO L82 PathProgramCache]: Analyzing trace with hash -1243816254, now seen corresponding path program 1 times [2020-10-27 22:13:28,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:13:28,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1150374517] [2020-10-27 22:13:28,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:13:28,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:28,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:28,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:28,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:31,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:31,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-27 22:13:31,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 22:13:31,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2989 [2020-10-27 22:13:31,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:31,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:13:31,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-27 22:13:31,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 22:13:31,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:31,885 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:13:31,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:13:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:31,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:31,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:31,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:13:31,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:31,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 22:13:31,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:31,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:31,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:13:31,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:31,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:31,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:13:31,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:31,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:31,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:31,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:13:31,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:31,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:13:31,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:31,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:31,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:13:31,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:31,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:31,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:13:31,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:31,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:31,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:31,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:13:31,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:31,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:13:31,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:31,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:31,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:13:31,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:31,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:31,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:13:31,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:31,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:31,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:31,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:13:31,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:31,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:13:31,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:31,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:31,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:13:31,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:31,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:31,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:13:31,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:31,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:31,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:31,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:13:31,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:31,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 22:13:31,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:31,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:31,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:13:31,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:31,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:31,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 22:13:31,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:31,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:31,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:31,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:13:31,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:31,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:13:31,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:31,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:31,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:13:31,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:31,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:31,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-27 22:13:31,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:31,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:31,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:31,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:13:31,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:31,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:13:31,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:31,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:31,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:13:31,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:31,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:31,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-27 22:13:31,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:31,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:31,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:31,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:13:31,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:31,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:13:31,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:31,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:31,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:13:31,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:31,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:31,986 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 22:13:31,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1150374517] [2020-10-27 22:13:31,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:13:31,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 22:13:31,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240255578] [2020-10-27 22:13:31,989 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 22:13:31,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:13:31,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 22:13:31,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 22:13:31,990 INFO L87 Difference]: Start difference. First operand 153 states and 180 transitions. Second operand 4 states. [2020-10-27 22:13:32,563 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 22:13:33,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:13:33,614 INFO L93 Difference]: Finished difference Result 278 states and 336 transitions. [2020-10-27 22:13:33,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 22:13:33,614 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2020-10-27 22:13:33,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:13:33,617 INFO L225 Difference]: With dead ends: 278 [2020-10-27 22:13:33,617 INFO L226 Difference]: Without dead ends: 173 [2020-10-27 22:13:33,619 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 22:13:33,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2020-10-27 22:13:33,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 144. [2020-10-27 22:13:33,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-27 22:13:33,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 168 transitions. [2020-10-27 22:13:33,679 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 168 transitions. Word has length 54 [2020-10-27 22:13:33,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:13:33,680 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 168 transitions. [2020-10-27 22:13:33,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 22:13:33,680 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 168 transitions. [2020-10-27 22:13:33,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-27 22:13:33,683 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:13:33,683 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:13:33,683 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 22:13:33,683 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 22:13:33,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:13:33,684 INFO L82 PathProgramCache]: Analyzing trace with hash 119262569, now seen corresponding path program 1 times [2020-10-27 22:13:33,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:13:33,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2054224179] [2020-10-27 22:13:33,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:13:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:33,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:33,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:35,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:35,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-27 22:13:35,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 22:13:35,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1372 [2020-10-27 22:13:35,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:35,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 22:13:35,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:13:35,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-27 22:13:35,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:35,369 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:13:35,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:13:35,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:35,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:35,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:35,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:13:35,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:35,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-27 22:13:35,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:35,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:13:35,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:13:35,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 22:13:35,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:35,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:13:35,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:35,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:35,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:35,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:13:35,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:35,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:13:35,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:35,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:13:35,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:13:35,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:13:35,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:35,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:13:35,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:35,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:35,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:35,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:13:35,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:35,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:13:35,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:35,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:13:35,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:13:35,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:13:35,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:35,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:13:35,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:35,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:35,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:35,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:13:35,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:35,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:13:35,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:35,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:13:35,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:13:35,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:13:35,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:35,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:13:35,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:35,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:35,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:35,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:13:35,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:35,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:13:35,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:35,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:13:35,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:13:35,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:13:35,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:35,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-27 22:13:35,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:35,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:35,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:35,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:13:35,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:35,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:13:35,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:35,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:35,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:13:35,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:35,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:35,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 22:13:35,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:35,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:35,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:35,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:13:35,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:35,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:13:35,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:35,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:35,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:13:35,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:35,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:35,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 22:13:35,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:35,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:35,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:35,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:13:35,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:35,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:13:35,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:35,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:35,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:13:35,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:35,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:35,523 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 22:13:35,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2054224179] [2020-10-27 22:13:35,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:13:35,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 22:13:35,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449550059] [2020-10-27 22:13:35,524 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 22:13:35,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:13:35,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 22:13:35,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 22:13:35,525 INFO L87 Difference]: Start difference. First operand 144 states and 168 transitions. Second operand 4 states. [2020-10-27 22:13:35,936 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 22:13:37,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:13:37,777 INFO L93 Difference]: Finished difference Result 427 states and 522 transitions. [2020-10-27 22:13:37,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 22:13:37,781 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2020-10-27 22:13:37,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:13:37,786 INFO L225 Difference]: With dead ends: 427 [2020-10-27 22:13:37,786 INFO L226 Difference]: Without dead ends: 307 [2020-10-27 22:13:37,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 22:13:37,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-10-27 22:13:37,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 257. [2020-10-27 22:13:37,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-10-27 22:13:37,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 306 transitions. [2020-10-27 22:13:37,875 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 306 transitions. Word has length 58 [2020-10-27 22:13:37,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:13:37,876 INFO L481 AbstractCegarLoop]: Abstraction has 257 states and 306 transitions. [2020-10-27 22:13:37,876 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 22:13:37,876 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 306 transitions. [2020-10-27 22:13:37,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-27 22:13:37,879 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:13:37,881 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 22:13:37,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 22:13:37,881 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 22:13:37,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:13:37,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1706261855, now seen corresponding path program 1 times [2020-10-27 22:13:37,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:13:37,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2062914195] [2020-10-27 22:13:37,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:13:37,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:37,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:38,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:38,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-27 22:13:38,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:38,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 888 [2020-10-27 22:13:38,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:38,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 22:13:38,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:13:38,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-27 22:13:38,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:39,164 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 22:13:39,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:13:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:39,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:39,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:39,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:13:39,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:39,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-27 22:13:39,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:39,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:13:39,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:13:39,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 22:13:39,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:39,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:13:39,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:39,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:39,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:39,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:13:39,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:39,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:13:39,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:39,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:13:39,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:13:39,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:13:39,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:39,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 22:13:39,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:39,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:39,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:39,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:13:39,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:39,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:13:39,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:39,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:13:39,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:13:39,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:13:39,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:39,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 22:13:39,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:39,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:39,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:39,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:13:39,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:39,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:13:39,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:39,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:13:39,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:13:39,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:13:39,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:39,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 22:13:39,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:39,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:39,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:39,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 22:13:39,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:39,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:13:39,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:39,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:13:39,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:13:39,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 22:13:39,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:39,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 22:13:39,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:39,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:39,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:39,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:13:39,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:39,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:13:39,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:39,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:13:39,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:13:39,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:13:39,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:39,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 22:13:39,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:39,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:39,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:39,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:13:39,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:39,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:13:39,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:39,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:13:39,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:13:39,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:13:39,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:39,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 22:13:39,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:39,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:39,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:39,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:13:39,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:39,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:13:39,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:39,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:13:39,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:13:39,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:13:39,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:39,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 22:13:39,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:13:39,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:13:39,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:13:39,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:13:39,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:13:39,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:13:39,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:13:39,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:13:39,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 22:13:39,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:13:39,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:13:39,372 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 22:13:39,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2062914195] [2020-10-27 22:13:39,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:13:39,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 22:13:39,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596596168] [2020-10-27 22:13:39,373 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 22:13:39,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:13:39,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 22:13:39,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-27 22:13:39,374 INFO L87 Difference]: Start difference. First operand 257 states and 306 transitions. Second operand 9 states. [2020-10-27 22:13:39,875 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 22:13:41,521 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 22:13:41,970 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 22:13:42,290 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 22:13:42,602 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 22:13:43,047 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 22:13:44,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:13:44,323 INFO L93 Difference]: Finished difference Result 816 states and 1085 transitions. [2020-10-27 22:13:44,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 22:13:44,329 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2020-10-27 22:13:44,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:13:44,337 INFO L225 Difference]: With dead ends: 816 [2020-10-27 22:13:44,337 INFO L226 Difference]: Without dead ends: 583 [2020-10-27 22:13:44,339 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-10-27 22:13:44,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2020-10-27 22:13:44,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 478. [2020-10-27 22:13:44,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2020-10-27 22:13:44,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 585 transitions. [2020-10-27 22:13:44,525 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 585 transitions. Word has length 64 [2020-10-27 22:13:44,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:13:44,526 INFO L481 AbstractCegarLoop]: Abstraction has 478 states and 585 transitions. [2020-10-27 22:13:44,526 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 22:13:44,526 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 585 transitions. [2020-10-27 22:13:44,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-27 22:13:44,530 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:13:44,530 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 22:13:44,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 22:13:44,531 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 22:13:44,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:13:44,532 INFO L82 PathProgramCache]: Analyzing trace with hash -89943845, now seen corresponding path program 1 times [2020-10-27 22:13:44,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:13:44,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [959224671] [2020-10-27 22:13:44,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:13:44,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 22:13:44,595 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 22:13:44,595 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 22:13:44,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 22:13:44,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 10:13:44 BoogieIcfgContainer [2020-10-27 22:13:44,632 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 22:13:44,634 INFO L168 Benchmark]: Toolchain (without parser) took 24413.17 ms. Allocated memory was 154.1 MB in the beginning and 566.2 MB in the end (delta: 412.1 MB). Free memory was 126.7 MB in the beginning and 457.4 MB in the end (delta: -330.7 MB). Peak memory consumption was 81.7 MB. Max. memory is 8.0 GB. [2020-10-27 22:13:44,635 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 154.1 MB. Free memory is still 129.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 22:13:44,637 INFO L168 Benchmark]: CACSL2BoogieTranslator took 662.44 ms. Allocated memory is still 154.1 MB. Free memory was 126.2 MB in the beginning and 104.1 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-27 22:13:44,638 INFO L168 Benchmark]: Boogie Preprocessor took 157.24 ms. Allocated memory is still 154.1 MB. Free memory was 104.1 MB in the beginning and 100.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-27 22:13:44,644 INFO L168 Benchmark]: RCFGBuilder took 1477.00 ms. Allocated memory was 154.1 MB in the beginning and 188.7 MB in the end (delta: 34.6 MB). Free memory was 100.2 MB in the beginning and 163.8 MB in the end (delta: -63.7 MB). Peak memory consumption was 56.6 MB. Max. memory is 8.0 GB. [2020-10-27 22:13:44,645 INFO L168 Benchmark]: TraceAbstraction took 22102.36 ms. Allocated memory was 188.7 MB in the beginning and 566.2 MB in the end (delta: 377.5 MB). Free memory was 163.3 MB in the beginning and 457.4 MB in the end (delta: -294.1 MB). Peak memory consumption was 83.4 MB. Max. memory is 8.0 GB. [2020-10-27 22:13:44,655 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 154.1 MB. Free memory is still 129.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 662.44 ms. Allocated memory is still 154.1 MB. Free memory was 126.2 MB in the beginning and 104.1 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 157.24 ms. Allocated memory is still 154.1 MB. Free memory was 104.1 MB in the beginning and 100.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1477.00 ms. Allocated memory was 154.1 MB in the beginning and 188.7 MB in the end (delta: 34.6 MB). Free memory was 100.2 MB in the beginning and 163.8 MB in the end (delta: -63.7 MB). Peak memory consumption was 56.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 22102.36 ms. Allocated memory was 188.7 MB in the beginning and 566.2 MB in the end (delta: 377.5 MB). Free memory was 163.3 MB in the beginning and 457.4 MB in the end (delta: -294.1 MB). Peak memory consumption was 83.4 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: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int waterLevel = 1; [L417] int methaneLevelCritical = 0; [L519] int cleanupTimeShifts = 4; [L771] int pumpRunning = 0; [L772] int systemActive = 1; [L598] int retValue_acc ; [L599] int tmp ; [L603] FCALL select_helpers() [L604] FCALL select_features() [L605] CALL, EXPR valid_product() [L647] int retValue_acc ; [L650] retValue_acc = 1 [L651] return (retValue_acc); [L605] RET, EXPR valid_product() [L605] tmp = valid_product() [L607] COND TRUE \read(tmp) [L609] FCALL setup() [L610] CALL runTest() [L589] CALL test() [L703] int splverifierCounter ; [L704] int tmp ; [L705] int tmp___0 ; [L706] int tmp___1 ; [L707] int tmp___2 ; [L710] splverifierCounter = 0 [L712] COND TRUE 1 [L714] COND TRUE splverifierCounter < 4 [L720] tmp = __VERIFIER_nondet_int() [L722] COND TRUE \read(tmp) [L724] CALL waterRise() [L434] COND TRUE waterLevel < 2 [L435] waterLevel = waterLevel + 1 [L724] RET waterRise() [L730] tmp___0 = __VERIFIER_nondet_int() [L732] COND FALSE !(\read(tmp___0)) [L740] tmp___2 = __VERIFIER_nondet_int() [L742] COND FALSE !(\read(tmp___2)) [L746] tmp___1 = __VERIFIER_nondet_int() [L748] COND TRUE \read(tmp___1) [L750] CALL stopSystem() [L989] COND FALSE !(\read(pumpRunning)) [L996] systemActive = 0 [L750] RET stopSystem() [L757] CALL timeShift() [L778] COND FALSE !(\read(pumpRunning)) [L785] COND FALSE !(\read(systemActive)) [L793] CALL __utac_acc__Specification3_spec__1() [L659] int tmp ; [L660] int tmp___0 ; [L661] int tmp___1 ; [L665] CALL, EXPR isMethaneLevelCritical() [L455] int retValue_acc ; [L458] retValue_acc = methaneLevelCritical [L459] return (retValue_acc); [L665] RET, EXPR isMethaneLevelCritical() [L665] tmp = isMethaneLevelCritical() [L667] COND FALSE !(\read(tmp)) [L671] CALL, EXPR getWaterLevel() [L487] int retValue_acc ; [L490] retValue_acc = waterLevel [L491] return (retValue_acc); [L671] RET, EXPR getWaterLevel() [L671] tmp___0 = getWaterLevel() [L673] COND TRUE tmp___0 == 2 [L675] CALL, EXPR isPumpRunning() [L903] int retValue_acc ; [L906] retValue_acc = pumpRunning [L907] return (retValue_acc); [L675] RET, EXPR isPumpRunning() [L675] tmp___1 = isPumpRunning() [L677] COND FALSE !(\read(tmp___1)) [L681] CALL __automaton_fail() [L696] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product59.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 263 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 22.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 10.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 567 SDtfs, 798 SDslu, 288 SDs, 0 SdLazy, 1666 SolverSat, 445 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=478occurred 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, 220 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 10.5s InterpolantComputationTime, 297 NumberOfCodeBlocks, 297 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 225 ConstructedInterpolants, 0 QuantifiedInterpolants, 68212 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...