/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product06.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:55:28,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:55:28,158 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:55:28,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:55:28,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:55:28,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:55:28,197 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:55:28,199 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:55:28,202 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:55:28,203 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:55:28,204 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:55:28,205 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:55:28,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:55:28,207 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:55:28,208 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:55:28,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:55:28,211 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:55:28,212 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:55:28,228 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:55:28,230 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:55:28,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:55:28,237 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:55:28,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:55:28,243 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:55:28,246 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:55:28,247 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:55:28,247 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:55:28,248 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:55:28,249 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:55:28,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:55:28,250 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:55:28,251 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:55:28,252 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:55:28,253 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:55:28,254 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:55:28,254 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:55:28,255 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:55:28,255 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:55:28,256 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:55:28,257 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:55:28,258 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:55:28,261 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 19:55:28,273 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:55:28,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:55:28,275 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:55:28,275 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:55:28,275 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:55:28,276 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:55:28,276 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:55:28,276 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:55:28,276 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:55:28,276 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:55:28,277 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:55:28,277 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:55:28,277 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:55:28,277 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:55:28,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:55:28,278 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:55:28,278 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:55:28,278 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:55:28,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:55:28,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:55:28,279 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:55:28,279 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:55:28,279 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:55:28,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:55:28,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:55:28,675 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:55:28,677 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:55:28,677 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:55:28,678 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product06.cil.c [2020-10-23 19:55:28,766 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a154189d/6dbf7f147e4846ab9e7424c4e989701d/FLAG830a0c644 [2020-10-23 19:55:29,530 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:55:29,530 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product06.cil.c [2020-10-23 19:55:29,546 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a154189d/6dbf7f147e4846ab9e7424c4e989701d/FLAG830a0c644 [2020-10-23 19:55:29,810 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a154189d/6dbf7f147e4846ab9e7424c4e989701d [2020-10-23 19:55:29,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:55:29,820 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:55:29,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:55:29,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:55:29,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:55:29,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:55:29" (1/1) ... [2020-10-23 19:55:29,830 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@272860bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:29, skipping insertion in model container [2020-10-23 19:55:29,830 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:55:29" (1/1) ... [2020-10-23 19:55:29,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:55:29,915 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:55:30,261 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:55:30,271 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:55:30,351 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:55:30,390 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:55:30,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:30 WrapperNode [2020-10-23 19:55:30,391 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:55:30,392 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:55:30,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:55:30,393 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:55:30,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:30" (1/1) ... [2020-10-23 19:55:30,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:30" (1/1) ... [2020-10-23 19:55:30,451 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:30" (1/1) ... [2020-10-23 19:55:30,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:30" (1/1) ... [2020-10-23 19:55:30,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:30" (1/1) ... [2020-10-23 19:55:30,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:30" (1/1) ... [2020-10-23 19:55:30,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:30" (1/1) ... [2020-10-23 19:55:30,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:55:30,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:55:30,565 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:55:30,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:55:30,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-10-23 19:55:30,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:55:30,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:55:30,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:55:30,690 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:55:30,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:55:30,690 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:55:30,690 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:55:30,691 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:55:30,691 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:55:30,691 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:55:30,692 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 19:55:30,692 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:55:30,692 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:55:30,692 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:55:30,692 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:55:30,693 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:55:30,693 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:55:30,693 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 19:55:30,694 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:55:30,694 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:55:30,695 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:55:30,695 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:55:30,699 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:55:30,699 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:55:30,699 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:55:30,699 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:55:30,700 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:55:30,700 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:55:30,700 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:55:30,700 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:55:30,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:55:30,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:55:30,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:55:30,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:55:30,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:55:30,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:55:30,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:55:30,702 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:55:30,702 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:55:30,702 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:55:30,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:55:30,702 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:55:30,703 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:55:30,703 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:55:30,703 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:55:30,703 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:55:30,703 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:55:30,703 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:55:30,704 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:55:30,704 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:55:30,704 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:55:30,704 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:55:30,704 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:55:30,704 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:55:30,704 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:55:30,705 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:55:30,705 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 19:55:30,706 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:55:30,706 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:55:30,706 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 19:55:30,706 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:55:30,706 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:55:30,706 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:55:30,707 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:55:30,707 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:55:30,707 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:55:30,707 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:55:30,707 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:55:30,708 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:55:30,708 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:55:30,708 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:55:30,708 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:55:30,708 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:55:30,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:55:30,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:55:30,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:55:30,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:55:30,709 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:55:30,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:55:30,709 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:55:30,710 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:55:30,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:55:30,711 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:55:30,711 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:55:30,711 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:55:30,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:55:30,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:55:30,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:55:32,137 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:55:32,137 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:55:32,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:55:32 BoogieIcfgContainer [2020-10-23 19:55:32,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:55:32,142 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:55:32,142 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:55:32,146 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:55:32,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:55:29" (1/3) ... [2020-10-23 19:55:32,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a3da748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:55:32, skipping insertion in model container [2020-10-23 19:55:32,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:30" (2/3) ... [2020-10-23 19:55:32,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a3da748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:55:32, skipping insertion in model container [2020-10-23 19:55:32,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:55:32" (3/3) ... [2020-10-23 19:55:32,150 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product06.cil.c [2020-10-23 19:55:32,163 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:55:32,169 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:55:32,184 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:55:32,210 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:55:32,210 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:55:32,211 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:55:32,211 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:55:32,211 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:55:32,211 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:55:32,211 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:55:32,211 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:55:32,234 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states. [2020-10-23 19:55:32,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-23 19:55:32,255 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:55:32,256 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:55:32,256 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]=== [2020-10-23 19:55:32,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:55:32,264 INFO L82 PathProgramCache]: Analyzing trace with hash -399867722, now seen corresponding path program 1 times [2020-10-23 19:55:32,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:55:32,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1990091265] [2020-10-23 19:55:32,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:55:32,362 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:55:32,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:33,170 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:55:33,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:55:33,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:33,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:55:33,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:33,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:55:33,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:33,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:55:33,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:33,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:55:33,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:33,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:55:33,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:33,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:55:33,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:33,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:55:33,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:33,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:55:33,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1990091265] [2020-10-23 19:55:33,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:55:33,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 19:55:33,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879153187] [2020-10-23 19:55:33,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 19:55:33,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:55:33,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 19:55:33,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:55:33,432 INFO L87 Difference]: Start difference. First operand 288 states. Second operand 3 states. [2020-10-23 19:55:34,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:55:34,956 INFO L93 Difference]: Finished difference Result 432 states and 516 transitions. [2020-10-23 19:55:34,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 19:55:34,959 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-10-23 19:55:34,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:55:34,988 INFO L225 Difference]: With dead ends: 432 [2020-10-23 19:55:34,988 INFO L226 Difference]: Without dead ends: 274 [2020-10-23 19:55:34,995 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 [2020-10-23 19:55:35,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-10-23 19:55:35,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 234. [2020-10-23 19:55:35,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-10-23 19:55:35,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 252 transitions. [2020-10-23 19:55:35,167 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 252 transitions. Word has length 159 [2020-10-23 19:55:35,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:55:35,168 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 252 transitions. [2020-10-23 19:55:35,168 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 19:55:35,168 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 252 transitions. [2020-10-23 19:55:35,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-23 19:55:35,173 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:55:35,173 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:55:35,173 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:55:35,173 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]=== [2020-10-23 19:55:35,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:55:35,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1691104605, now seen corresponding path program 1 times [2020-10-23 19:55:35,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:55:35,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1387894320] [2020-10-23 19:55:35,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:55:35,179 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:55:35,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:35,679 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:55:35,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:55:35,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:35,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:55:35,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:35,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:55:35,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:35,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:55:35,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:35,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:55:35,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:35,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-23 19:55:35,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:35,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 19:55:35,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:35,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 19:55:35,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:35,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:55:35,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1387894320] [2020-10-23 19:55:35,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:55:35,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:55:35,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081930616] [2020-10-23 19:55:35,794 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:55:35,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:55:35,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:55:35,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:55:35,796 INFO L87 Difference]: Start difference. First operand 234 states and 252 transitions. Second operand 4 states. [2020-10-23 19:55:36,658 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:55:37,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:55:37,577 INFO L93 Difference]: Finished difference Result 342 states and 383 transitions. [2020-10-23 19:55:37,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 19:55:37,578 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-10-23 19:55:37,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:55:37,582 INFO L225 Difference]: With dead ends: 342 [2020-10-23 19:55:37,582 INFO L226 Difference]: Without dead ends: 257 [2020-10-23 19:55:37,586 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 19:55:37,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-10-23 19:55:37,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 224. [2020-10-23 19:55:37,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-10-23 19:55:37,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 239 transitions. [2020-10-23 19:55:37,685 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 239 transitions. Word has length 160 [2020-10-23 19:55:37,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:55:37,686 INFO L481 AbstractCegarLoop]: Abstraction has 224 states and 239 transitions. [2020-10-23 19:55:37,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:55:37,686 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 239 transitions. [2020-10-23 19:55:37,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-23 19:55:37,689 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:55:37,689 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:55:37,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:55:37,689 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]=== [2020-10-23 19:55:37,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:55:37,690 INFO L82 PathProgramCache]: Analyzing trace with hash -2086884596, now seen corresponding path program 1 times [2020-10-23 19:55:37,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:55:37,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1108776100] [2020-10-23 19:55:37,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:55:37,694 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:55:37,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:38,216 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:55:38,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:55:38,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:38,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:55:38,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:38,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:55:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:38,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:55:38,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:38,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:55:38,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:38,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 19:55:38,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:38,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 19:55:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:38,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-23 19:55:38,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:38,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-23 19:55:38,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:38,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:55:38,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1108776100] [2020-10-23 19:55:38,414 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:55:38,414 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:55:38,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099966584] [2020-10-23 19:55:38,415 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:55:38,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:55:38,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:55:38,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:55:38,416 INFO L87 Difference]: Start difference. First operand 224 states and 239 transitions. Second operand 10 states. [2020-10-23 19:55:39,074 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:55:39,551 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:55:39,953 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:55:40,337 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:55:40,723 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:55:41,078 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:55:42,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:55:42,730 INFO L93 Difference]: Finished difference Result 388 states and 445 transitions. [2020-10-23 19:55:42,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 19:55:42,735 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-10-23 19:55:42,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:55:42,739 INFO L225 Difference]: With dead ends: 388 [2020-10-23 19:55:42,739 INFO L226 Difference]: Without dead ends: 279 [2020-10-23 19:55:42,740 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-10-23 19:55:42,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-10-23 19:55:42,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 224. [2020-10-23 19:55:42,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-10-23 19:55:42,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 238 transitions. [2020-10-23 19:55:42,818 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 238 transitions. Word has length 173 [2020-10-23 19:55:42,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:55:42,819 INFO L481 AbstractCegarLoop]: Abstraction has 224 states and 238 transitions. [2020-10-23 19:55:42,819 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:55:42,819 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 238 transitions. [2020-10-23 19:55:42,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-10-23 19:55:42,822 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:55:42,822 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:55:42,822 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:55:42,823 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]=== [2020-10-23 19:55:42,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:55:42,823 INFO L82 PathProgramCache]: Analyzing trace with hash 580384069, now seen corresponding path program 1 times [2020-10-23 19:55:42,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:55:42,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2099897095] [2020-10-23 19:55:42,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:55:42,827 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:55:42,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:43,313 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:55:43,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:55:43,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:43,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:55:43,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:43,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:55:43,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:43,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:55:43,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:43,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:55:43,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:43,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 19:55:43,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:43,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:55:43,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:43,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:55:43,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:43,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-23 19:55:43,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:43,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-23 19:55:43,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:43,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-23 19:55:43,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:55:43,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:55:43,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2099897095] [2020-10-23 19:55:43,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:55:43,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:55:43,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999671431] [2020-10-23 19:55:43,535 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:55:43,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:55:43,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:55:43,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:55:43,536 INFO L87 Difference]: Start difference. First operand 224 states and 238 transitions. Second operand 10 states. [2020-10-23 19:55:44,168 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:55:46,399 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:55:46,853 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:55:47,249 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:55:47,628 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:55:48,010 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:55:48,620 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:55:49,089 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:55:49,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:55:49,837 INFO L93 Difference]: Finished difference Result 599 states and 741 transitions. [2020-10-23 19:55:49,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-23 19:55:49,838 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 181 [2020-10-23 19:55:49,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:55:49,848 INFO L225 Difference]: With dead ends: 599 [2020-10-23 19:55:49,849 INFO L226 Difference]: Without dead ends: 490 [2020-10-23 19:55:49,853 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2020-10-23 19:55:49,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2020-10-23 19:55:50,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 324. [2020-10-23 19:55:50,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2020-10-23 19:55:50,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 355 transitions. [2020-10-23 19:55:50,022 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 355 transitions. Word has length 181 [2020-10-23 19:55:50,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:55:50,023 INFO L481 AbstractCegarLoop]: Abstraction has 324 states and 355 transitions. [2020-10-23 19:55:50,023 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:55:50,023 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 355 transitions. [2020-10-23 19:55:50,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-10-23 19:55:50,026 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:55:50,026 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:55:50,027 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:55:50,027 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]=== [2020-10-23 19:55:50,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:55:50,028 INFO L82 PathProgramCache]: Analyzing trace with hash -2055247167, now seen corresponding path program 1 times [2020-10-23 19:55:50,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:55:50,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1340839215] [2020-10-23 19:55:50,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:55:50,031 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:55:50,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:55:50,115 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:55:50,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:55:50,210 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:55:50,448 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 19:55:50,449 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 19:55:50,451 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:55:50,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 07:55:50 BoogieIcfgContainer [2020-10-23 19:55:50,472 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 19:55:50,474 INFO L168 Benchmark]: Toolchain (without parser) took 20659.03 ms. Allocated memory was 157.3 MB in the beginning and 414.2 MB in the end (delta: 256.9 MB). Free memory was 133.3 MB in the beginning and 234.7 MB in the end (delta: -101.4 MB). Peak memory consumption was 155.8 MB. Max. memory is 8.0 GB. [2020-10-23 19:55:50,475 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 157.3 MB. Free memory was 131.9 MB in the beginning and 131.8 MB in the end (delta: 75.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 19:55:50,476 INFO L168 Benchmark]: CACSL2BoogieTranslator took 569.81 ms. Allocated memory is still 157.3 MB. Free memory was 132.6 MB in the beginning and 112.4 MB in the end (delta: 20.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-23 19:55:50,477 INFO L168 Benchmark]: Boogie Preprocessor took 171.44 ms. Allocated memory is still 157.3 MB. Free memory was 112.4 MB in the beginning and 139.7 MB in the end (delta: -27.3 MB). Peak memory consumption was 7.4 MB. Max. memory is 8.0 GB. [2020-10-23 19:55:50,478 INFO L168 Benchmark]: RCFGBuilder took 1575.85 ms. Allocated memory is still 157.3 MB. Free memory was 139.7 MB in the beginning and 101.2 MB in the end (delta: 38.6 MB). Peak memory consumption was 67.4 MB. Max. memory is 8.0 GB. [2020-10-23 19:55:50,479 INFO L168 Benchmark]: TraceAbstraction took 18330.29 ms. Allocated memory was 157.3 MB in the beginning and 414.2 MB in the end (delta: 256.9 MB). Free memory was 100.6 MB in the beginning and 234.7 MB in the end (delta: -134.1 MB). Peak memory consumption was 122.8 MB. Max. memory is 8.0 GB. [2020-10-23 19:55:50,482 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 157.3 MB. Free memory was 131.9 MB in the beginning and 131.8 MB in the end (delta: 75.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 569.81 ms. Allocated memory is still 157.3 MB. Free memory was 132.6 MB in the beginning and 112.4 MB in the end (delta: 20.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 171.44 ms. Allocated memory is still 157.3 MB. Free memory was 112.4 MB in the beginning and 139.7 MB in the end (delta: -27.3 MB). Peak memory consumption was 7.4 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1575.85 ms. Allocated memory is still 157.3 MB. Free memory was 139.7 MB in the beginning and 101.2 MB in the end (delta: 38.6 MB). Peak memory consumption was 67.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 18330.29 ms. Allocated memory was 157.3 MB in the beginning and 414.2 MB in the end (delta: 256.9 MB). Free memory was 100.6 MB in the beginning and 234.7 MB in the end (delta: -134.1 MB). Peak memory consumption was 122.8 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: [L98] int pumpRunning = 0; [L99] int systemActive = 1; [L311] int waterLevel = 1; [L312] int methaneLevelCritical = 0; [L391] int cleanupTimeShifts = 4; [L656] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L464] int retValue_acc ; [L465] int tmp ; [L469] FCALL select_helpers() [L470] FCALL select_features() [L471] CALL, EXPR valid_product() [L80] int retValue_acc ; [L83] retValue_acc = 1 [L84] return (retValue_acc); [L471] RET, EXPR valid_product() [L471] tmp = valid_product() [L473] COND TRUE \read(tmp) [L475] FCALL setup() [L476] CALL runTest() [L458] CALL test() [L244] int splverifierCounter ; [L245] int tmp ; [L246] int tmp___0 ; [L247] int tmp___1 ; [L248] int tmp___2 ; [L251] splverifierCounter = 0 [L253] COND TRUE 1 [L255] COND TRUE splverifierCounter < 4 [L261] tmp = __VERIFIER_nondet_int() [L263] COND TRUE \read(tmp) [L265] CALL waterRise() [L329] COND TRUE waterLevel < 2 [L330] waterLevel = waterLevel + 1 [L265] RET waterRise() [L271] tmp___0 = __VERIFIER_nondet_int() [L273] COND FALSE !(\read(tmp___0)) [L281] tmp___2 = __VERIFIER_nondet_int() [L283] COND TRUE \read(tmp___2) [L285] CALL startSystem() [L235] systemActive = 1 [L285] RET startSystem() [L298] CALL timeShift() [L106] COND FALSE !(\read(pumpRunning)) [L113] COND TRUE \read(systemActive) [L115] CALL processEnvironment() [L135] int tmp ; [L138] COND FALSE !(\read(pumpRunning)) [L153] FCALL processEnvironment__wrappee__base() [L115] RET processEnvironment() [L121] CALL __utac_acc__Specification3_spec__1() [L854] int tmp ; [L855] int tmp___0 ; [L856] int tmp___1 ; [L860] CALL, EXPR isMethaneLevelCritical() [L350] int retValue_acc ; [L353] retValue_acc = methaneLevelCritical [L354] return (retValue_acc); [L860] RET, EXPR isMethaneLevelCritical() [L860] tmp = isMethaneLevelCritical() [L862] COND FALSE !(\read(tmp)) [L866] CALL, EXPR getWaterLevel() [L382] int retValue_acc ; [L385] retValue_acc = waterLevel [L386] return (retValue_acc); [L866] RET, EXPR getWaterLevel() [L866] tmp___0 = getWaterLevel() [L868] COND TRUE tmp___0 == 2 [L870] CALL, EXPR isPumpRunning() [L187] int retValue_acc ; [L190] retValue_acc = pumpRunning [L191] return (retValue_acc); [L870] RET, EXPR isPumpRunning() [L870] tmp___1 = isPumpRunning() [L872] COND FALSE !(\read(tmp___1)) [L876] CALL __automaton_fail() [L46] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product06.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 607 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 14.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 864 SDtfs, 1293 SDslu, 1389 SDs, 0 SdLazy, 2395 SolverSat, 425 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 7.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=324occurred 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: 0.5s AutomataMinimizationTime, 4 MinimizatonAttempts, 294 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...