/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_product12.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:55:57,764 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:55:57,768 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:55:57,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:55:57,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:55:57,825 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:55:57,829 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:55:57,836 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:55:57,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:55:57,845 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:55:57,846 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:55:57,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:55:57,848 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:55:57,851 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:55:57,853 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:55:57,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:55:57,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:55:57,858 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:55:57,877 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:55:57,883 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:55:57,885 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:55:57,887 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:55:57,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:55:57,891 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:55:57,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:55:57,902 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:55:57,902 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:55:57,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:55:57,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:55:57,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:55:57,906 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:55:57,907 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:55:57,909 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:55:57,909 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:55:57,910 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:55:57,911 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:55:57,911 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:55:57,912 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:55:57,912 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:55:57,913 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:55:57,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:55:57,915 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 19:55:57,935 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:55:57,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:55:57,940 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:55:57,940 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:55:57,940 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:55:57,940 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:55:57,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:55:57,941 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:55:57,941 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:55:57,941 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:55:57,942 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:55:57,943 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:55:57,943 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:55:57,943 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:55:57,944 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:55:57,944 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:55:57,944 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:55:57,944 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:55:57,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:55:57,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:55:57,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:55:57,945 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:55:57,945 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:55:58,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:55:58,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:55:58,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:55:58,363 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:55:58,364 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:55:58,365 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product12.cil.c [2020-10-23 19:55:58,450 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/681f980b8/a434635af6084e448721842cd5500770/FLAG1d6684c82 [2020-10-23 19:55:59,265 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:55:59,269 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product12.cil.c [2020-10-23 19:55:59,287 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/681f980b8/a434635af6084e448721842cd5500770/FLAG1d6684c82 [2020-10-23 19:55:59,520 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/681f980b8/a434635af6084e448721842cd5500770 [2020-10-23 19:55:59,523 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:55:59,531 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:55:59,532 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:55:59,533 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:55:59,536 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:55:59,537 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:55:59" (1/1) ... [2020-10-23 19:55:59,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c8d652e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:55:59, skipping insertion in model container [2020-10-23 19:55:59,541 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:55:59" (1/1) ... [2020-10-23 19:55:59,549 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:55:59,589 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:55:59,875 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:55:59,887 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:56:00,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:56:00,078 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:56:00,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:00 WrapperNode [2020-10-23 19:56:00,079 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:56:00,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:56:00,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:56:00,081 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:56:00,098 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:00" (1/1) ... [2020-10-23 19:56:00,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:00" (1/1) ... [2020-10-23 19:56:00,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:00" (1/1) ... [2020-10-23 19:56:00,118 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:00" (1/1) ... [2020-10-23 19:56:00,195 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:00" (1/1) ... [2020-10-23 19:56:00,204 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:00" (1/1) ... [2020-10-23 19:56:00,209 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:00" (1/1) ... [2020-10-23 19:56:00,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:56:00,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:56:00,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:56:00,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:56:00,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:00" (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 19:56:00,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:56:00,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:56:00,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:56:00,317 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:56:00,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:56:00,318 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:56:00,318 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:56:00,318 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:56:00,318 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-10-23 19:56:00,318 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:56:00,319 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:56:00,319 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:56:00,319 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:56:00,320 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:56:00,320 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 19:56:00,320 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 19:56:00,320 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:56:00,321 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:56:00,321 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:56:00,321 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:56:00,322 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:56:00,322 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:56:00,325 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:56:00,325 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:56:00,325 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:56:00,325 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:56:00,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:56:00,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:56:00,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:56:00,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:56:00,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:56:00,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:56:00,326 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:56:00,327 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:56:00,327 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:56:00,327 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:56:00,327 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:56:00,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:56:00,327 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:56:00,328 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:56:00,328 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:56:00,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:56:00,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:56:00,328 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:56:00,328 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:56:00,328 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:56:00,329 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:56:00,329 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:56:00,329 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:56:00,329 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:56:00,329 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:56:00,330 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 19:56:00,330 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 19:56:00,330 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:56:00,330 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:56:00,330 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:56:00,330 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:56:00,330 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:56:00,330 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:56:00,331 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:56:00,331 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:56:00,331 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:56:00,331 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-10-23 19:56:00,331 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:56:00,331 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:56:00,331 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:56:00,332 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:56:00,332 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:56:00,332 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:56:00,332 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:56:00,332 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:56:00,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:56:00,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:56:00,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:56:00,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:56:00,333 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:56:00,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:56:00,334 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:56:00,334 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:56:00,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:56:00,335 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:56:00,335 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:56:00,335 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:56:00,335 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:56:00,335 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:56:00,335 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:56:00,336 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:56:00,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:56:00,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:56:00,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:56:01,741 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:56:01,741 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:56:01,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:56:01 BoogieIcfgContainer [2020-10-23 19:56:01,744 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:56:01,746 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:56:01,746 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:56:01,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:56:01,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:55:59" (1/3) ... [2020-10-23 19:56:01,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53a789b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:56:01, skipping insertion in model container [2020-10-23 19:56:01,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:56:00" (2/3) ... [2020-10-23 19:56:01,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53a789b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:56:01, skipping insertion in model container [2020-10-23 19:56:01,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:56:01" (3/3) ... [2020-10-23 19:56:01,753 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product12.cil.c [2020-10-23 19:56:01,765 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:56:01,771 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:56:01,785 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:56:01,809 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:56:01,809 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:56:01,810 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:56:01,810 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:56:01,810 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:56:01,810 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:56:01,810 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:56:01,810 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:56:01,833 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states. [2020-10-23 19:56:01,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-23 19:56:01,853 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:56:01,854 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 19:56:01,854 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 19:56:01,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:56:01,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1552150985, now seen corresponding path program 1 times [2020-10-23 19:56:01,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:56:01,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [860113808] [2020-10-23 19:56:01,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:56:01,951 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:56:02,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:02,756 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:56:02,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:56:02,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:02,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:56:02,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:02,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:56:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:02,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:56:02,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:02,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:56:02,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:02,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:56:02,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:02,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:56:02,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:02,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:56:02,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:03,018 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 19:56:03,023 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [860113808] [2020-10-23 19:56:03,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:56:03,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 19:56:03,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026448693] [2020-10-23 19:56:03,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 19:56:03,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:56:03,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 19:56:03,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:56:03,059 INFO L87 Difference]: Start difference. First operand 290 states. Second operand 3 states. [2020-10-23 19:56:04,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:56:04,360 INFO L93 Difference]: Finished difference Result 404 states and 482 transitions. [2020-10-23 19:56:04,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 19:56:04,362 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-10-23 19:56:04,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:56:04,378 INFO L225 Difference]: With dead ends: 404 [2020-10-23 19:56:04,379 INFO L226 Difference]: Without dead ends: 260 [2020-10-23 19:56:04,384 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:56:04,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-10-23 19:56:04,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 220. [2020-10-23 19:56:04,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-10-23 19:56:04,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 235 transitions. [2020-10-23 19:56:04,537 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 235 transitions. Word has length 159 [2020-10-23 19:56:04,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:56:04,540 INFO L481 AbstractCegarLoop]: Abstraction has 220 states and 235 transitions. [2020-10-23 19:56:04,540 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 19:56:04,540 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 235 transitions. [2020-10-23 19:56:04,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-23 19:56:04,553 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:56:04,553 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 19:56:04,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:56:04,554 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 19:56:04,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:56:04,555 INFO L82 PathProgramCache]: Analyzing trace with hash -1094848140, now seen corresponding path program 1 times [2020-10-23 19:56:04,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:56:04,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1105625514] [2020-10-23 19:56:04,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:56:04,564 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:56:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:05,132 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:56:05,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:56:05,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:05,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:56:05,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:05,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:56:05,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:05,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:56:05,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:05,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:56:05,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:05,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-23 19:56:05,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:05,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 19:56:05,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:05,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 19:56:05,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:05,277 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 19:56:05,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1105625514] [2020-10-23 19:56:05,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:56:05,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:56:05,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937141310] [2020-10-23 19:56:05,281 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:56:05,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:56:05,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:56:05,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:56:05,283 INFO L87 Difference]: Start difference. First operand 220 states and 235 transitions. Second operand 4 states. [2020-10-23 19:56:06,006 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:56:06,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:56:06,678 INFO L93 Difference]: Finished difference Result 305 states and 339 transitions. [2020-10-23 19:56:06,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 19:56:06,679 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-10-23 19:56:06,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:56:06,685 INFO L225 Difference]: With dead ends: 305 [2020-10-23 19:56:06,685 INFO L226 Difference]: Without dead ends: 243 [2020-10-23 19:56:06,688 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 19:56:06,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-10-23 19:56:06,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 210. [2020-10-23 19:56:06,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-10-23 19:56:06,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 222 transitions. [2020-10-23 19:56:06,800 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 222 transitions. Word has length 160 [2020-10-23 19:56:06,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:56:06,803 INFO L481 AbstractCegarLoop]: Abstraction has 210 states and 222 transitions. [2020-10-23 19:56:06,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:56:06,803 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 222 transitions. [2020-10-23 19:56:06,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-23 19:56:06,806 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:56:06,807 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 19:56:06,807 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:56:06,807 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 19:56:06,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:56:06,808 INFO L82 PathProgramCache]: Analyzing trace with hash 754789209, now seen corresponding path program 1 times [2020-10-23 19:56:06,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:56:06,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1610874507] [2020-10-23 19:56:06,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:56:06,813 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:56:06,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:07,275 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:56:07,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:56:07,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:07,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:56:07,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:07,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:56:07,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:07,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:56:07,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:07,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:56:07,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:07,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 19:56:07,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:07,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 19:56:07,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:07,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-23 19:56:07,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:07,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-23 19:56:07,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:07,445 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 19:56:07,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1610874507] [2020-10-23 19:56:07,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:56:07,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:56:07,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891191989] [2020-10-23 19:56:07,448 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:56:07,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:56:07,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:56:07,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:56:07,450 INFO L87 Difference]: Start difference. First operand 210 states and 222 transitions. Second operand 10 states. [2020-10-23 19:56:08,056 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:56:08,418 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:56:08,712 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:56:09,010 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:56:09,299 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:56:09,572 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:56:10,528 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:56:12,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:56:12,150 INFO L93 Difference]: Finished difference Result 559 states and 647 transitions. [2020-10-23 19:56:12,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 19:56:12,155 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-10-23 19:56:12,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:56:12,161 INFO L225 Difference]: With dead ends: 559 [2020-10-23 19:56:12,161 INFO L226 Difference]: Without dead ends: 464 [2020-10-23 19:56:12,163 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-10-23 19:56:12,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-10-23 19:56:12,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 363. [2020-10-23 19:56:12,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2020-10-23 19:56:12,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 398 transitions. [2020-10-23 19:56:12,328 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 398 transitions. Word has length 173 [2020-10-23 19:56:12,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:56:12,329 INFO L481 AbstractCegarLoop]: Abstraction has 363 states and 398 transitions. [2020-10-23 19:56:12,329 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:56:12,329 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 398 transitions. [2020-10-23 19:56:12,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-23 19:56:12,332 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:56:12,333 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] [2020-10-23 19:56:12,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:56:12,333 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 19:56:12,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:56:12,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1088730631, now seen corresponding path program 1 times [2020-10-23 19:56:12,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:56:12,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [307378229] [2020-10-23 19:56:12,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:56:12,338 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:56:12,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:12,631 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:56:12,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:56:12,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:12,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:56:12,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:12,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:56:12,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:12,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:56:12,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:12,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:56:12,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:12,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 19:56:12,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:12,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:56:12,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:12,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-23 19:56:12,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:12,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 19:56:12,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:12,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-23 19:56:12,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:56:12,821 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 19:56:12,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [307378229] [2020-10-23 19:56:12,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:56:12,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:56:12,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749294320] [2020-10-23 19:56:12,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:56:12,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:56:12,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:56:12,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:56:12,825 INFO L87 Difference]: Start difference. First operand 363 states and 398 transitions. Second operand 9 states. [2020-10-23 19:56:13,299 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:56:14,820 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:56:15,106 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:56:15,433 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:56:15,751 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:56:16,035 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:56:16,274 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:56:16,599 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:56:17,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:56:17,127 INFO L93 Difference]: Finished difference Result 916 states and 1084 transitions. [2020-10-23 19:56:17,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 19:56:17,128 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 176 [2020-10-23 19:56:17,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:56:17,136 INFO L225 Difference]: With dead ends: 916 [2020-10-23 19:56:17,136 INFO L226 Difference]: Without dead ends: 668 [2020-10-23 19:56:17,139 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-23 19:56:17,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2020-10-23 19:56:17,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 585. [2020-10-23 19:56:17,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2020-10-23 19:56:17,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 661 transitions. [2020-10-23 19:56:17,428 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 661 transitions. Word has length 176 [2020-10-23 19:56:17,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:56:17,429 INFO L481 AbstractCegarLoop]: Abstraction has 585 states and 661 transitions. [2020-10-23 19:56:17,429 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:56:17,429 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 661 transitions. [2020-10-23 19:56:17,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-10-23 19:56:17,433 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:56:17,434 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 19:56:17,434 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:56:17,434 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 19:56:17,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:56:17,435 INFO L82 PathProgramCache]: Analyzing trace with hash -650629879, now seen corresponding path program 1 times [2020-10-23 19:56:17,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:56:17,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1714433944] [2020-10-23 19:56:17,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:56:17,439 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:56:17,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:56:17,512 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:56:17,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:56:17,584 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:56:17,763 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 19:56:17,763 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 19:56:17,764 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:56:17,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 07:56:17 BoogieIcfgContainer [2020-10-23 19:56:17,786 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 19:56:17,788 INFO L168 Benchmark]: Toolchain (without parser) took 18262.52 ms. Allocated memory was 164.6 MB in the beginning and 449.8 MB in the end (delta: 285.2 MB). Free memory was 139.9 MB in the beginning and 304.3 MB in the end (delta: -164.4 MB). Peak memory consumption was 121.2 MB. Max. memory is 8.0 GB. [2020-10-23 19:56:17,789 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 164.6 MB. Free memory is still 138.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 19:56:17,790 INFO L168 Benchmark]: CACSL2BoogieTranslator took 547.13 ms. Allocated memory is still 164.6 MB. Free memory was 139.4 MB in the beginning and 118.6 MB in the end (delta: 20.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-23 19:56:17,791 INFO L168 Benchmark]: Boogie Preprocessor took 137.14 ms. Allocated memory is still 164.6 MB. Free memory was 118.6 MB in the beginning and 145.4 MB in the end (delta: -26.9 MB). Peak memory consumption was 7.5 MB. Max. memory is 8.0 GB. [2020-10-23 19:56:17,791 INFO L168 Benchmark]: RCFGBuilder took 1526.13 ms. Allocated memory is still 164.6 MB. Free memory was 145.4 MB in the beginning and 104.1 MB in the end (delta: 41.3 MB). Peak memory consumption was 63.3 MB. Max. memory is 8.0 GB. [2020-10-23 19:56:17,792 INFO L168 Benchmark]: TraceAbstraction took 16040.30 ms. Allocated memory was 164.6 MB in the beginning and 449.8 MB in the end (delta: 285.2 MB). Free memory was 103.6 MB in the beginning and 304.3 MB in the end (delta: -200.7 MB). Peak memory consumption was 84.0 MB. Max. memory is 8.0 GB. [2020-10-23 19:56:17,796 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 164.6 MB. Free memory is still 138.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 547.13 ms. Allocated memory is still 164.6 MB. Free memory was 139.4 MB in the beginning and 118.6 MB in the end (delta: 20.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 137.14 ms. Allocated memory is still 164.6 MB. Free memory was 118.6 MB in the beginning and 145.4 MB in the end (delta: -26.9 MB). Peak memory consumption was 7.5 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1526.13 ms. Allocated memory is still 164.6 MB. Free memory was 145.4 MB in the beginning and 104.1 MB in the end (delta: 41.3 MB). Peak memory consumption was 63.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 16040.30 ms. Allocated memory was 164.6 MB in the beginning and 449.8 MB in the end (delta: 285.2 MB). Free memory was 103.6 MB in the beginning and 304.3 MB in the end (delta: -200.7 MB). Peak memory consumption was 84.0 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: [L160] int pumpRunning = 0; [L161] int systemActive = 1; [L308] int waterLevel = 1; [L309] int methaneLevelCritical = 0; [L595] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L792] int cleanupTimeShifts = 4; [L865] int retValue_acc ; [L866] int tmp ; [L870] FCALL select_helpers() [L871] FCALL select_features() [L872] CALL, EXPR valid_product() [L417] int retValue_acc ; [L420] retValue_acc = 1 [L421] return (retValue_acc); [L872] RET, EXPR valid_product() [L872] tmp = valid_product() [L874] COND TRUE \read(tmp) [L876] FCALL setup() [L877] CALL runTest() [L859] CALL test() [L87] int splverifierCounter ; [L88] int tmp ; [L89] int tmp___0 ; [L90] int tmp___1 ; [L91] int tmp___2 ; [L94] splverifierCounter = 0 [L96] COND TRUE 1 [L98] COND TRUE splverifierCounter < 4 [L104] tmp = __VERIFIER_nondet_int() [L106] COND TRUE \read(tmp) [L108] CALL waterRise() [L326] COND TRUE waterLevel < 2 [L327] waterLevel = waterLevel + 1 [L108] RET waterRise() [L114] tmp___0 = __VERIFIER_nondet_int() [L116] COND FALSE !(\read(tmp___0)) [L124] tmp___2 = __VERIFIER_nondet_int() [L126] COND TRUE \read(tmp___2) [L128] CALL startSystem() [L303] systemActive = 1 [L128] RET startSystem() [L143] CALL timeShift() [L167] COND FALSE !(\read(pumpRunning)) [L174] COND TRUE \read(systemActive) [L176] FCALL processEnvironment() [L182] CALL __utac_acc__Specification3_spec__1() [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L53] CALL, EXPR isMethaneLevelCritical() [L347] int retValue_acc ; [L350] retValue_acc = methaneLevelCritical [L351] return (retValue_acc); [L53] RET, EXPR isMethaneLevelCritical() [L53] tmp = isMethaneLevelCritical() [L55] COND FALSE !(\read(tmp)) [L59] CALL, EXPR getWaterLevel() [L379] int retValue_acc ; [L382] retValue_acc = waterLevel [L383] return (retValue_acc); [L59] RET, EXPR getWaterLevel() [L59] tmp___0 = getWaterLevel() [L61] COND TRUE tmp___0 == 2 [L63] CALL, EXPR isPumpRunning() [L240] int retValue_acc ; [L243] retValue_acc = pumpRunning [L244] return (retValue_acc); [L63] RET, EXPR isPumpRunning() [L63] tmp___1 = isPumpRunning() [L65] COND FALSE !(\read(tmp___1)) [L69] CALL __automaton_fail() [L892] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product12.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 610 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 11.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 824 SDtfs, 1175 SDslu, 1375 SDs, 0 SdLazy, 2303 SolverSat, 398 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 118 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=585occurred 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: 0.7s AutomataMinimizationTime, 4 MinimizatonAttempts, 257 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...