/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=SHALLOWEST --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_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 03:35:52,685 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 03:35:52,688 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 03:35:52,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 03:35:52,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 03:35:52,737 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 03:35:52,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 03:35:52,741 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 03:35:52,743 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 03:35:52,744 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 03:35:52,746 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 03:35:52,747 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 03:35:52,748 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 03:35:52,749 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 03:35:52,750 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 03:35:52,752 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 03:35:52,753 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 03:35:52,754 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 03:35:52,756 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 03:35:52,759 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 03:35:52,761 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 03:35:52,767 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 03:35:52,768 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 03:35:52,769 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 03:35:52,773 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 03:35:52,774 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 03:35:52,774 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 03:35:52,789 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 03:35:52,790 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 03:35:52,791 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 03:35:52,791 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 03:35:52,792 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 03:35:52,793 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 03:35:52,794 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 03:35:52,795 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 03:35:52,796 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 03:35:52,797 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 03:35:52,797 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 03:35:52,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 03:35:52,798 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 03:35:52,799 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 03:35:52,800 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 03:35:52,826 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 03:35:52,826 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 03:35:52,828 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 03:35:52,828 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 03:35:52,828 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 03:35:52,828 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 03:35:52,829 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 03:35:52,829 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 03:35:52,829 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 03:35:52,829 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 03:35:52,829 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 03:35:52,830 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 03:35:52,830 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 03:35:52,830 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 03:35:52,830 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 03:35:52,830 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 03:35:52,831 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 03:35:52,831 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 03:35:52,831 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 03:35:52,831 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 03:35:52,832 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 03:35:52,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 03:35:52,832 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 03:35:52,832 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 03:35:52,832 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 03:35:52,833 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 03:35:52,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 03:35:52,833 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 03:35:52,833 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 03:35:52,833 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 03:35:53,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 03:35:53,271 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 03:35:53,276 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 03:35:53,278 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 03:35:53,278 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 03:35:53,279 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product31.cil.c [2020-10-27 03:35:53,363 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a5a2c2c59/c218179ad1d3448b98f1628f3b2bb64a/FLAGfc0d3c954 [2020-10-27 03:35:54,195 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 03:35:54,196 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product31.cil.c [2020-10-27 03:35:54,223 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a5a2c2c59/c218179ad1d3448b98f1628f3b2bb64a/FLAGfc0d3c954 [2020-10-27 03:35:54,444 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a5a2c2c59/c218179ad1d3448b98f1628f3b2bb64a [2020-10-27 03:35:54,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 03:35:54,456 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 03:35:54,458 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 03:35:54,458 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 03:35:54,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 03:35:54,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:35:54" (1/1) ... [2020-10-27 03:35:54,467 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@274c84be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:54, skipping insertion in model container [2020-10-27 03:35:54,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:35:54" (1/1) ... [2020-10-27 03:35:54,477 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 03:35:54,523 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 03:35:54,851 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:35:54,865 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 03:35:55,045 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:35:55,085 INFO L208 MainTranslator]: Completed translation [2020-10-27 03:35:55,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:55 WrapperNode [2020-10-27 03:35:55,086 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 03:35:55,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 03:35:55,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 03:35:55,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 03:35:55,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:55" (1/1) ... [2020-10-27 03:35:55,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:55" (1/1) ... [2020-10-27 03:35:55,121 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:55" (1/1) ... [2020-10-27 03:35:55,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:55" (1/1) ... [2020-10-27 03:35:55,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:55" (1/1) ... [2020-10-27 03:35:55,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:55" (1/1) ... [2020-10-27 03:35:55,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:55" (1/1) ... [2020-10-27 03:35:55,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 03:35:55,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 03:35:55,220 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 03:35:55,220 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 03:35:55,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:55" (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 03:35:55,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 03:35:55,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 03:35:55,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-27 03:35:55,305 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 03:35:55,305 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-27 03:35:55,305 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-27 03:35:55,306 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-27 03:35:55,306 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-27 03:35:55,306 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-27 03:35:55,306 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-27 03:35:55,306 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-27 03:35:55,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-27 03:35:55,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-27 03:35:55,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-27 03:35:55,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-27 03:35:55,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-27 03:35:55,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-27 03:35:55,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-27 03:35:55,308 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-27 03:35:55,308 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-27 03:35:55,308 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-27 03:35:55,308 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-27 03:35:55,308 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-27 03:35:55,309 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-10-27 03:35:55,309 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-27 03:35:55,309 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-27 03:35:55,309 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-27 03:35:55,309 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-27 03:35:55,309 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-27 03:35:55,310 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-27 03:35:55,310 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-27 03:35:55,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-27 03:35:55,310 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-27 03:35:55,310 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-27 03:35:55,310 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-27 03:35:55,311 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-27 03:35:55,311 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-27 03:35:55,311 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-27 03:35:55,311 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-27 03:35:55,311 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-27 03:35:55,311 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 03:35:55,312 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 03:35:55,312 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 03:35:55,312 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 03:35:55,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 03:35:55,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 03:35:55,312 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-27 03:35:55,312 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-27 03:35:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-27 03:35:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-27 03:35:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-27 03:35:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-27 03:35:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-27 03:35:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-27 03:35:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-27 03:35:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 03:35:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 03:35:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-27 03:35:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 03:35:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 03:35:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 03:35:55,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 03:35:55,315 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-27 03:35:55,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 03:35:55,315 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-27 03:35:55,315 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-27 03:35:55,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 03:35:55,316 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-27 03:35:55,316 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-27 03:35:55,316 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-27 03:35:55,316 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-27 03:35:55,316 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-27 03:35:55,316 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-27 03:35:55,316 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-27 03:35:55,317 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-27 03:35:55,317 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-27 03:35:55,317 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-27 03:35:55,317 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-27 03:35:55,317 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-27 03:35:55,317 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-27 03:35:55,318 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-27 03:35:55,318 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-27 03:35:55,318 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-27 03:35:55,318 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-27 03:35:55,318 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-10-27 03:35:55,318 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-27 03:35:55,318 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-27 03:35:55,319 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-27 03:35:55,319 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-27 03:35:55,319 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-27 03:35:55,319 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-27 03:35:55,319 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-27 03:35:55,319 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 03:35:55,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 03:35:55,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 03:35:55,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 03:35:56,559 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 03:35:56,560 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-27 03:35:56,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:35:56 BoogieIcfgContainer [2020-10-27 03:35:56,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 03:35:56,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 03:35:56,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 03:35:56,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 03:35:56,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:35:54" (1/3) ... [2020-10-27 03:35:56,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d8c70e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:35:56, skipping insertion in model container [2020-10-27 03:35:56,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:55" (2/3) ... [2020-10-27 03:35:56,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d8c70e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:35:56, skipping insertion in model container [2020-10-27 03:35:56,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:35:56" (3/3) ... [2020-10-27 03:35:56,571 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product31.cil.c [2020-10-27 03:35:56,584 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 03:35:56,590 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-27 03:35:56,605 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-27 03:35:56,637 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 03:35:56,638 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 03:35:56,638 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 03:35:56,638 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 03:35:56,638 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 03:35:56,638 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 03:35:56,638 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 03:35:56,638 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 03:35:56,663 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2020-10-27 03:35:56,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-27 03:35:56,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:35:56,675 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 03:35:56,676 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 03:35:56,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:35:56,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1500374359, now seen corresponding path program 1 times [2020-10-27 03:35:56,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:35:56,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [72371365] [2020-10-27 03:35:56,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:35:57,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:35:57,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:57,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:35:58,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:00,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:00,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-27 03:36:00,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 03:36:00,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3339 [2020-10-27 03:36:00,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:00,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 03:36:00,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:00,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 03:36:00,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 03:36:00,875 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:36:00,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:36:00,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:00,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:01,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:01,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:01,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:01,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-27 03:36:01,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:01,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:01,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:01,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:36:01,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:01,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:36:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:01,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:01,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:01,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:01,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:01,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:36:01,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:01,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:01,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:01,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:01,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 03:36:01,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:36:01,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:01,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:01,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:01,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:01,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:01,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:01,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:01,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:01,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:01,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:01,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:01,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:36:01,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:01,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:01,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:01,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:01,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:01,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:36:01,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:01,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:01,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:01,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:36:01,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:01,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:36:01,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:01,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:01,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:01,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:01,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:01,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:01,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:01,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:01,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:01,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:01,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:01,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 03:36:01,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:01,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:01,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:01,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:01,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:01,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:01,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:01,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:01,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:01,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:01,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:01,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 03:36:01,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:01,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:01,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:01,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:01,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:01,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:01,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:01,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:01,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:01,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:01,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:01,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 03:36:01,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:01,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:01,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:01,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:01,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:01,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:01,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:01,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:01,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:01,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:01,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:01,161 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 03:36:01,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [72371365] [2020-10-27 03:36:01,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:36:01,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 03:36:01,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811379307] [2020-10-27 03:36:01,172 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 03:36:01,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:36:01,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 03:36:01,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 03:36:01,192 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 4 states. [2020-10-27 03:36:01,764 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:36:04,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:36:04,387 INFO L93 Difference]: Finished difference Result 449 states and 600 transitions. [2020-10-27 03:36:04,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 03:36:04,389 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-27 03:36:04,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:36:04,407 INFO L225 Difference]: With dead ends: 449 [2020-10-27 03:36:04,407 INFO L226 Difference]: Without dead ends: 292 [2020-10-27 03:36:04,413 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 03:36:04,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2020-10-27 03:36:04,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 233. [2020-10-27 03:36:04,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-27 03:36:04,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 284 transitions. [2020-10-27 03:36:04,594 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 284 transitions. Word has length 53 [2020-10-27 03:36:04,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:36:04,595 INFO L481 AbstractCegarLoop]: Abstraction has 233 states and 284 transitions. [2020-10-27 03:36:04,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 03:36:04,595 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 284 transitions. [2020-10-27 03:36:04,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-27 03:36:04,600 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:36:04,601 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:36:04,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 03:36:04,601 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 03:36:04,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:36:04,602 INFO L82 PathProgramCache]: Analyzing trace with hash -534207543, now seen corresponding path program 1 times [2020-10-27 03:36:04,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:36:04,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [969833768] [2020-10-27 03:36:04,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:36:04,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:04,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:06,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:06,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-27 03:36:06,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:06,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1425 [2020-10-27 03:36:06,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:06,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 03:36:06,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:06,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-27 03:36:06,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:06,413 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:36:06,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:36:06,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:06,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:06,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:06,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:06,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:06,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-27 03:36:06,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:06,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:06,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:06,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:36:06,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:06,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:36:06,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:06,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:06,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:06,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:06,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:06,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:36:06,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:06,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:06,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:06,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:06,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 03:36:06,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:36:06,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:06,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:06,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:06,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:06,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:06,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:06,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:06,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:06,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:06,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:06,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:06,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:36:06,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:06,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:06,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:06,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:06,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:06,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:06,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:06,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:06,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:06,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:36:06,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:06,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:36:06,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:06,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:06,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:06,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:06,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:06,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:36:06,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:06,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:06,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:06,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:06,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:06,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 03:36:06,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:06,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:06,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:06,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 03:36:06,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:06,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 03:36:06,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:06,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:06,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:06,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 03:36:06,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:06,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:36:06,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:06,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:06,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:06,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 03:36:06,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:06,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:06,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:06,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:06,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:06,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:06,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:06,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:36:06,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:06,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:06,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:06,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:06,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:06,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:06,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:06,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:06,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:06,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:06,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:06,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 03:36:06,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:06,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:06,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:06,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:06,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:06,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:36:06,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:06,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:06,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:06,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:36:06,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:06,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 03:36:06,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:06,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:06,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:06,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:06,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:06,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:36:06,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:06,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:36:06,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:06,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:36:06,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:06,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 03:36:06,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:06,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:06,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:06,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:06,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:06,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:06,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:06,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:06,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:06,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:06,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:06,753 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 03:36:06,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [969833768] [2020-10-27 03:36:06,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:36:06,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 03:36:06,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645857167] [2020-10-27 03:36:06,758 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 03:36:06,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:36:06,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 03:36:06,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-27 03:36:06,760 INFO L87 Difference]: Start difference. First operand 233 states and 284 transitions. Second operand 8 states. [2020-10-27 03:36:07,286 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:36:09,153 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:36:09,524 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:36:09,869 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:36:10,241 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:36:11,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:36:11,478 INFO L93 Difference]: Finished difference Result 789 states and 1095 transitions. [2020-10-27 03:36:11,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 03:36:11,480 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 71 [2020-10-27 03:36:11,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:36:11,490 INFO L225 Difference]: With dead ends: 789 [2020-10-27 03:36:11,490 INFO L226 Difference]: Without dead ends: 580 [2020-10-27 03:36:11,494 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-27 03:36:11,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-10-27 03:36:11,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 444. [2020-10-27 03:36:11,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-10-27 03:36:11,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 562 transitions. [2020-10-27 03:36:11,653 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 562 transitions. Word has length 71 [2020-10-27 03:36:11,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:36:11,653 INFO L481 AbstractCegarLoop]: Abstraction has 444 states and 562 transitions. [2020-10-27 03:36:11,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 03:36:11,654 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 562 transitions. [2020-10-27 03:36:11,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-27 03:36:11,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:36:11,659 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:36:11,660 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 03:36:11,660 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 03:36:11,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:36:11,660 INFO L82 PathProgramCache]: Analyzing trace with hash 355351988, now seen corresponding path program 1 times [2020-10-27 03:36:11,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:36:11,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [581067673] [2020-10-27 03:36:11,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:36:11,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:11,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:11,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:11,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:12,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:14,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:16,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:16,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 03:36:16,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 03:36:16,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-27 03:36:16,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:16,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 03:36:16,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:16,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 03:36:16,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:17,031 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:36:17,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:36:17,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:17,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:17,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:17,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:17,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:17,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-27 03:36:17,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:17,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:17,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:17,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:36:17,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:17,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:36:17,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:17,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:17,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:17,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:17,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:17,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:17,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:17,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:17,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:17,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:17,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:17,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:36:17,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:17,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:17,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:17,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:17,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:17,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 03:36:17,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:17,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:17,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:17,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:17,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:17,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:36:17,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:17,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:17,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:17,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:17,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:17,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 03:36:17,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:17,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:17,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:17,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:36:17,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:17,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:36:17,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:17,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:17,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:17,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:17,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:17,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:17,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:17,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:17,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:17,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:17,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:17,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 03:36:17,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:17,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:17,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:17,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:17,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:17,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:17,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:17,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:17,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:17,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:17,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:17,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 03:36:17,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:17,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:17,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:17,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 03:36:17,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:17,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:17,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:17,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:17,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 03:36:17,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:17,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:17,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:36:17,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:17,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:17,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:17,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 03:36:17,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:17,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:17,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:17,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:17,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:17,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:17,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:17,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:36:17,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:17,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:17,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:17,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:17,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:17,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:17,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:17,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:17,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:17,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:17,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:17,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 03:36:17,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:17,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:17,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:17,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:17,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:17,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:17,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:17,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:17,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:17,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:17,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:17,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 03:36:17,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:17,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:17,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:17,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:17,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:17,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:17,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:17,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:17,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:17,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:17,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:17,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 03:36:17,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:17,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:17,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:17,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:17,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:17,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:17,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:17,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:17,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:17,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:17,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:17,292 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 03:36:17,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [581067673] [2020-10-27 03:36:17,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:36:17,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 03:36:17,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018713585] [2020-10-27 03:36:17,294 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 03:36:17,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:36:17,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 03:36:17,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 03:36:17,295 INFO L87 Difference]: Start difference. First operand 444 states and 562 transitions. Second operand 6 states. [2020-10-27 03:36:17,779 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:36:18,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:36:18,626 INFO L93 Difference]: Finished difference Result 728 states and 961 transitions. [2020-10-27 03:36:18,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 03:36:18,627 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 71 [2020-10-27 03:36:18,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:36:18,631 INFO L225 Difference]: With dead ends: 728 [2020-10-27 03:36:18,632 INFO L226 Difference]: Without dead ends: 289 [2020-10-27 03:36:18,636 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-27 03:36:18,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2020-10-27 03:36:18,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 272. [2020-10-27 03:36:18,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-10-27 03:36:18,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 311 transitions. [2020-10-27 03:36:18,751 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 311 transitions. Word has length 71 [2020-10-27 03:36:18,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:36:18,754 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 311 transitions. [2020-10-27 03:36:18,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 03:36:18,755 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 311 transitions. [2020-10-27 03:36:18,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-27 03:36:18,759 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:36:18,759 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 03:36:18,759 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 03:36:18,760 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 03:36:18,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:36:18,760 INFO L82 PathProgramCache]: Analyzing trace with hash -475556206, now seen corresponding path program 1 times [2020-10-27 03:36:18,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:36:18,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1883747342] [2020-10-27 03:36:18,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:36:18,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 03:36:18,808 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 03:36:18,809 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 03:36:18,815 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 03:36:18,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:36:18 BoogieIcfgContainer [2020-10-27 03:36:18,849 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 03:36:18,853 INFO L168 Benchmark]: Toolchain (without parser) took 24402.27 ms. Allocated memory was 165.7 MB in the beginning and 523.2 MB in the end (delta: 357.6 MB). Free memory was 141.5 MB in the beginning and 264.7 MB in the end (delta: -123.2 MB). Peak memory consumption was 234.7 MB. Max. memory is 8.0 GB. [2020-10-27 03:36:18,853 INFO L168 Benchmark]: CDTParser took 0.74 ms. Allocated memory is still 125.8 MB. Free memory was 98.7 MB in the beginning and 98.7 MB in the end (delta: 72.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 03:36:18,854 INFO L168 Benchmark]: CACSL2BoogieTranslator took 628.82 ms. Allocated memory is still 165.7 MB. Free memory was 140.9 MB in the beginning and 119.6 MB in the end (delta: 21.4 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-27 03:36:18,856 INFO L168 Benchmark]: Boogie Preprocessor took 131.12 ms. Allocated memory is still 165.7 MB. Free memory was 119.6 MB in the beginning and 148.6 MB in the end (delta: -29.0 MB). Peak memory consumption was 6.8 MB. Max. memory is 8.0 GB. [2020-10-27 03:36:18,858 INFO L168 Benchmark]: RCFGBuilder took 1342.80 ms. Allocated memory is still 165.7 MB. Free memory was 148.2 MB in the beginning and 101.3 MB in the end (delta: 46.9 MB). Peak memory consumption was 48.3 MB. Max. memory is 8.0 GB. [2020-10-27 03:36:18,865 INFO L168 Benchmark]: TraceAbstraction took 22285.22 ms. Allocated memory was 165.7 MB in the beginning and 523.2 MB in the end (delta: 357.6 MB). Free memory was 100.8 MB in the beginning and 264.7 MB in the end (delta: -163.9 MB). Peak memory consumption was 193.1 MB. Max. memory is 8.0 GB. [2020-10-27 03:36:18,875 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74 ms. Allocated memory is still 125.8 MB. Free memory was 98.7 MB in the beginning and 98.7 MB in the end (delta: 72.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 628.82 ms. Allocated memory is still 165.7 MB. Free memory was 140.9 MB in the beginning and 119.6 MB in the end (delta: 21.4 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 131.12 ms. Allocated memory is still 165.7 MB. Free memory was 119.6 MB in the beginning and 148.6 MB in the end (delta: -29.0 MB). Peak memory consumption was 6.8 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1342.80 ms. Allocated memory is still 165.7 MB. Free memory was 148.2 MB in the beginning and 101.3 MB in the end (delta: 46.9 MB). Peak memory consumption was 48.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 22285.22 ms. Allocated memory was 165.7 MB in the beginning and 523.2 MB in the end (delta: 357.6 MB). Free memory was 100.8 MB in the beginning and 264.7 MB in the end (delta: -163.9 MB). Peak memory consumption was 193.1 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: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L316] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L587] int pumpRunning = 0; [L588] int systemActive = 1; [L870] int cleanupTimeShifts = 4; [L943] int retValue_acc ; [L944] int tmp ; [L948] FCALL select_helpers() [L949] FCALL select_features() [L950] CALL, EXPR valid_product() [L861] int retValue_acc ; [L864] retValue_acc = 1 [L865] return (retValue_acc); [L950] RET, EXPR valid_product() [L950] tmp = valid_product() [L952] COND TRUE \read(tmp) [L954] FCALL setup() [L955] CALL runTest() [L937] CALL test() [L517] int splverifierCounter ; [L518] int tmp ; [L519] int tmp___0 ; [L520] int tmp___1 ; [L521] int tmp___2 ; [L524] splverifierCounter = 0 [L526] COND TRUE 1 [L528] COND TRUE splverifierCounter < 4 [L534] tmp = __VERIFIER_nondet_int() [L536] COND TRUE \read(tmp) [L538] CALL waterRise() [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 [L538] RET waterRise() [L544] tmp___0 = __VERIFIER_nondet_int() [L546] COND FALSE !(\read(tmp___0)) [L554] tmp___2 = __VERIFIER_nondet_int() [L556] COND FALSE !(\read(tmp___2)) [L560] tmp___1 = __VERIFIER_nondet_int() [L562] COND TRUE \read(tmp___1) [L564] CALL stopSystem() [L786] COND FALSE !(\read(pumpRunning)) [L793] systemActive = 0 [L564] RET stopSystem() [L571] CALL timeShift() [L595] COND FALSE !(\read(pumpRunning)) [L602] COND FALSE !(\read(systemActive)) [L610] CALL __utac_acc__Specification3_spec__1() [L799] int tmp ; [L800] int tmp___0 ; [L801] int tmp___1 ; [L805] CALL, EXPR isMethaneLevelCritical() [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); [L805] RET, EXPR isMethaneLevelCritical() [L805] tmp = isMethaneLevelCritical() [L807] COND FALSE !(\read(tmp)) [L811] CALL, EXPR getWaterLevel() [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); [L811] RET, EXPR getWaterLevel() [L811] tmp___0 = getWaterLevel() [L813] COND TRUE tmp___0 == 2 [L815] CALL, EXPR isPumpRunning() [L719] int retValue_acc ; [L722] retValue_acc = pumpRunning [L723] return (retValue_acc); [L815] RET, EXPR isPumpRunning() [L815] tmp___1 = isPumpRunning() [L817] COND FALSE !(\read(tmp___1)) [L821] CALL __automaton_fail() [L142] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product31.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 252 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 22.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 9.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 363 SDtfs, 728 SDslu, 255 SDs, 0 SdLazy, 1253 SolverSat, 441 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=444occurred in iteration=2, 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, 3 MinimizatonAttempts, 212 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 11.7s InterpolantComputationTime, 263 NumberOfCodeBlocks, 263 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 61332 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...