/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_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:57:06,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:57:06,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:57:06,880 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:57:06,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:57:06,882 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:57:06,887 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:57:06,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:57:06,896 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:57:06,897 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:57:06,899 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:57:06,900 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:57:06,901 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:57:06,902 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:57:06,903 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:57:06,905 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:57:06,906 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:57:06,907 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:57:06,909 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:57:06,911 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:57:06,914 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:57:06,920 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:57:06,923 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:57:06,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:57:06,933 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:57:06,934 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:57:06,935 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:57:06,937 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:57:06,937 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:57:06,939 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:57:06,939 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:57:06,940 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:57:06,941 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:57:06,943 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:57:06,944 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:57:06,944 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:57:06,946 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:57:06,946 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:57:06,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:57:06,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:57:06,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:57:06,950 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 19:57:06,970 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:57:06,970 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:57:06,974 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:57:06,975 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:57:06,975 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:57:06,975 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:57:06,975 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:57:06,975 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:57:06,976 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:57:06,976 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:57:06,977 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:57:06,977 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:57:06,977 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:57:06,977 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:57:06,978 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:57:06,978 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:57:06,978 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:57:06,978 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:57:06,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:57:06,979 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:57:06,979 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:57:06,979 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:57:06,979 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:57:07,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:57:07,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:57:07,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:57:07,450 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:57:07,451 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:57:07,452 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product32.cil.c [2020-10-23 19:57:07,536 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31313b926/810fe73dd1534f73b8f930328abd1f8f/FLAGe1a2e2f31 [2020-10-23 19:57:08,329 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:57:08,335 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product32.cil.c [2020-10-23 19:57:08,357 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31313b926/810fe73dd1534f73b8f930328abd1f8f/FLAGe1a2e2f31 [2020-10-23 19:57:08,573 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31313b926/810fe73dd1534f73b8f930328abd1f8f [2020-10-23 19:57:08,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:57:08,591 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:57:08,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:57:08,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:57:08,601 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:57:08,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:57:08" (1/1) ... [2020-10-23 19:57:08,606 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cef8b6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:08, skipping insertion in model container [2020-10-23 19:57:08,606 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:57:08" (1/1) ... [2020-10-23 19:57:08,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:57:08,690 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:57:09,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:57:09,155 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:57:09,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:57:09,307 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:57:09,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:09 WrapperNode [2020-10-23 19:57:09,307 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:57:09,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:57:09,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:57:09,309 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:57:09,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:09" (1/1) ... [2020-10-23 19:57:09,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:09" (1/1) ... [2020-10-23 19:57:09,363 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:09" (1/1) ... [2020-10-23 19:57:09,363 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:09" (1/1) ... [2020-10-23 19:57:09,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:09" (1/1) ... [2020-10-23 19:57:09,442 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:09" (1/1) ... [2020-10-23 19:57:09,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:09" (1/1) ... [2020-10-23 19:57:09,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:57:09,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:57:09,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:57:09,479 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:57:09,480 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:09" (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 19:57:09,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:57:09,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:57:09,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:57:09,569 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:57:09,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:57:09,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:57:09,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:57:09,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:57:09,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:57:09,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:57:09,571 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:57:09,571 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:57:09,571 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 19:57:09,571 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-23 19:57:09,571 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:57:09,572 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 19:57:09,572 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:57:09,572 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:57:09,573 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:57:09,573 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:57:09,574 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:57:09,574 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 19:57:09,576 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 19:57:09,577 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 19:57:09,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:57:09,577 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:57:09,577 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:57:09,578 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:57:09,578 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:57:09,578 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:57:09,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:57:09,578 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:57:09,578 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:57:09,579 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:57:09,579 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:57:09,579 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:57:09,579 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:57:09,580 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:57:09,580 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:57:09,580 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:57:09,580 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:57:09,580 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 19:57:09,581 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:57:09,581 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:57:09,581 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:57:09,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:57:09,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:57:09,581 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:57:09,582 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:57:09,582 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:57:09,582 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:57:09,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:57:09,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:57:09,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:57:09,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:57:09,583 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:57:09,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:57:09,584 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:57:09,584 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:57:09,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:57:09,584 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:57:09,584 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:57:09,585 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:57:09,585 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:57:09,585 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:57:09,585 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 19:57:09,585 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 19:57:09,585 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:57:09,586 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:57:09,586 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:57:09,586 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:57:09,587 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:57:09,587 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:57:09,587 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 19:57:09,587 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:57:09,588 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:57:09,588 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:57:09,588 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:57:09,588 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:57:09,589 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:57:09,590 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 19:57:09,590 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 19:57:09,590 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-23 19:57:09,590 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:57:09,590 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 19:57:09,591 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:57:09,592 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:57:09,592 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:57:09,592 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:57:09,592 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:57:09,593 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:57:09,593 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:57:09,594 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:57:09,594 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:57:09,595 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:57:09,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:57:09,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:57:09,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:57:11,239 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:57:11,239 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:57:11,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:57:11 BoogieIcfgContainer [2020-10-23 19:57:11,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:57:11,245 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:57:11,245 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:57:11,249 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:57:11,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:57:08" (1/3) ... [2020-10-23 19:57:11,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12873acf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:57:11, skipping insertion in model container [2020-10-23 19:57:11,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:09" (2/3) ... [2020-10-23 19:57:11,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12873acf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:57:11, skipping insertion in model container [2020-10-23 19:57:11,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:57:11" (3/3) ... [2020-10-23 19:57:11,252 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product32.cil.c [2020-10-23 19:57:11,265 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:57:11,271 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:57:11,285 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:57:11,309 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:57:11,309 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:57:11,309 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:57:11,310 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:57:11,310 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:57:11,310 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:57:11,310 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:57:11,310 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:57:11,336 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states. [2020-10-23 19:57:11,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-23 19:57:11,359 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:11,361 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 19:57:11,361 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 19:57:11,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:11,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1078994717, now seen corresponding path program 1 times [2020-10-23 19:57:11,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:11,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2128734228] [2020-10-23 19:57:11,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:11,465 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:11,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:12,288 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:57:12,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:57:12,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:12,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:57:12,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:12,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:57:12,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:12,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:57:12,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:12,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:57:12,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:12,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:57:12,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:12,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:57:12,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:12,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:57:12,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:12,645 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 19:57:12,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2128734228] [2020-10-23 19:57:12,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:57:12,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 19:57:12,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468208022] [2020-10-23 19:57:12,660 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 19:57:12,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:57:12,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 19:57:12,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:57:12,687 INFO L87 Difference]: Start difference. First operand 335 states. Second operand 3 states. [2020-10-23 19:57:14,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:57:14,546 INFO L93 Difference]: Finished difference Result 510 states and 610 transitions. [2020-10-23 19:57:14,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 19:57:14,548 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-10-23 19:57:14,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:57:14,566 INFO L225 Difference]: With dead ends: 510 [2020-10-23 19:57:14,566 INFO L226 Difference]: Without dead ends: 315 [2020-10-23 19:57:14,572 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 19:57:14,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-10-23 19:57:14,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 271. [2020-10-23 19:57:14,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-10-23 19:57:14,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 296 transitions. [2020-10-23 19:57:14,748 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 296 transitions. Word has length 159 [2020-10-23 19:57:14,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:57:14,749 INFO L481 AbstractCegarLoop]: Abstraction has 271 states and 296 transitions. [2020-10-23 19:57:14,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 19:57:14,749 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 296 transitions. [2020-10-23 19:57:14,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-23 19:57:14,754 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:14,754 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 19:57:14,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:57:14,755 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 19:57:14,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:14,756 INFO L82 PathProgramCache]: Analyzing trace with hash 340263165, now seen corresponding path program 1 times [2020-10-23 19:57:14,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:14,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2137968292] [2020-10-23 19:57:14,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:14,761 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:14,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:15,273 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:57:15,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:57:15,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:15,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:57:15,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:15,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:57:15,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:15,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:57:15,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:15,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:57:15,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:15,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-23 19:57:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:15,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 19:57:15,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:15,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 19:57:15,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:15,436 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 19:57:15,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2137968292] [2020-10-23 19:57:15,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:57:15,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:57:15,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802344731] [2020-10-23 19:57:15,440 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:57:15,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:57:15,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:57:15,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:57:15,443 INFO L87 Difference]: Start difference. First operand 271 states and 296 transitions. Second operand 4 states. [2020-10-23 19:57:16,258 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:57:17,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:57:17,616 INFO L93 Difference]: Finished difference Result 414 states and 469 transitions. [2020-10-23 19:57:17,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 19:57:17,617 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-10-23 19:57:17,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:57:17,629 INFO L225 Difference]: With dead ends: 414 [2020-10-23 19:57:17,629 INFO L226 Difference]: Without dead ends: 298 [2020-10-23 19:57:17,636 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 19:57:17,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-23 19:57:17,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 261. [2020-10-23 19:57:17,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-10-23 19:57:17,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 283 transitions. [2020-10-23 19:57:17,810 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 283 transitions. Word has length 160 [2020-10-23 19:57:17,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:57:17,811 INFO L481 AbstractCegarLoop]: Abstraction has 261 states and 283 transitions. [2020-10-23 19:57:17,811 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:57:17,811 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 283 transitions. [2020-10-23 19:57:17,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-23 19:57:17,818 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:17,819 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 19:57:17,819 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:57:17,820 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 19:57:17,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:17,821 INFO L82 PathProgramCache]: Analyzing trace with hash 541278922, now seen corresponding path program 1 times [2020-10-23 19:57:17,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:17,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1376882180] [2020-10-23 19:57:17,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:17,827 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:17,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:18,371 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:57:18,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:57:18,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:18,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:57:18,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:18,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:57:18,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:18,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:57:18,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:18,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:57:18,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:18,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 19:57:18,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:18,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 19:57:18,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:18,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-23 19:57:18,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:18,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-23 19:57:18,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:18,629 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 19:57:18,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1376882180] [2020-10-23 19:57:18,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:57:18,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:57:18,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321412626] [2020-10-23 19:57:18,631 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:57:18,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:57:18,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:57:18,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:57:18,632 INFO L87 Difference]: Start difference. First operand 261 states and 283 transitions. Second operand 10 states. [2020-10-23 19:57:19,368 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:57:19,854 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:57:20,272 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:57:20,653 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:57:20,998 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:57:21,378 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:57:22,573 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:57:25,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:57:25,677 INFO L93 Difference]: Finished difference Result 720 states and 842 transitions. [2020-10-23 19:57:25,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 19:57:25,678 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-10-23 19:57:25,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:57:25,685 INFO L225 Difference]: With dead ends: 720 [2020-10-23 19:57:25,685 INFO L226 Difference]: Without dead ends: 574 [2020-10-23 19:57:25,687 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-10-23 19:57:25,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2020-10-23 19:57:25,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 477. [2020-10-23 19:57:25,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2020-10-23 19:57:25,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 536 transitions. [2020-10-23 19:57:25,906 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 536 transitions. Word has length 173 [2020-10-23 19:57:25,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:57:25,907 INFO L481 AbstractCegarLoop]: Abstraction has 477 states and 536 transitions. [2020-10-23 19:57:25,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:57:25,907 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 536 transitions. [2020-10-23 19:57:25,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-23 19:57:25,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:25,911 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] [2020-10-23 19:57:25,911 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:57:25,912 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 19:57:25,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:25,912 INFO L82 PathProgramCache]: Analyzing trace with hash 357046986, now seen corresponding path program 1 times [2020-10-23 19:57:25,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:25,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [679009641] [2020-10-23 19:57:25,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:25,917 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:25,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:26,452 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:57:26,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:57:26,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:26,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:57:26,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:26,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:57:26,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:26,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:57:26,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:26,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:57:26,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:26,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 19:57:26,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:26,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 19:57:26,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:26,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-23 19:57:26,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:26,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-23 19:57:26,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:26,683 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 19:57:26,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [679009641] [2020-10-23 19:57:26,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:57:26,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:57:26,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624213728] [2020-10-23 19:57:26,686 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:57:26,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:57:26,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:57:26,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:57:26,689 INFO L87 Difference]: Start difference. First operand 477 states and 536 transitions. Second operand 9 states. [2020-10-23 19:57:27,369 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:57:29,865 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:57:30,280 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:57:30,778 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:57:31,234 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:57:31,622 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:57:32,004 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:57:32,396 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:57:33,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:57:33,642 INFO L93 Difference]: Finished difference Result 1286 states and 1550 transitions. [2020-10-23 19:57:33,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 19:57:33,643 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2020-10-23 19:57:33,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:57:33,652 INFO L225 Difference]: With dead ends: 1286 [2020-10-23 19:57:33,652 INFO L226 Difference]: Without dead ends: 924 [2020-10-23 19:57:33,654 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-23 19:57:33,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2020-10-23 19:57:34,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 821. [2020-10-23 19:57:34,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 821 states. [2020-10-23 19:57:34,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 949 transitions. [2020-10-23 19:57:34,017 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 949 transitions. Word has length 178 [2020-10-23 19:57:34,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:57:34,018 INFO L481 AbstractCegarLoop]: Abstraction has 821 states and 949 transitions. [2020-10-23 19:57:34,018 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:57:34,018 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 949 transitions. [2020-10-23 19:57:34,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-23 19:57:34,023 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:34,023 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] [2020-10-23 19:57:34,024 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:57:34,024 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 19:57:34,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:34,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1939822395, now seen corresponding path program 1 times [2020-10-23 19:57:34,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:34,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1433749701] [2020-10-23 19:57:34,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:34,029 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:34,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:34,406 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:57:34,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:57:34,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:34,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:57:34,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:34,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:57:34,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:34,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:57:34,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:34,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:57:34,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:34,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 19:57:34,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:34,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 19:57:34,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:34,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-23 19:57:34,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:34,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-23 19:57:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:34,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-23 19:57:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:34,574 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 19:57:34,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1433749701] [2020-10-23 19:57:34,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:57:34,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 19:57:34,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58174979] [2020-10-23 19:57:34,580 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 19:57:34,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:57:34,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 19:57:34,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 19:57:34,586 INFO L87 Difference]: Start difference. First operand 821 states and 949 transitions. Second operand 6 states. [2020-10-23 19:57:35,212 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:57:36,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:57:36,317 INFO L93 Difference]: Finished difference Result 1359 states and 1632 transitions. [2020-10-23 19:57:36,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 19:57:36,317 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 183 [2020-10-23 19:57:36,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:57:36,323 INFO L225 Difference]: With dead ends: 1359 [2020-10-23 19:57:36,323 INFO L226 Difference]: Without dead ends: 653 [2020-10-23 19:57:36,326 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-23 19:57:36,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2020-10-23 19:57:36,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 576. [2020-10-23 19:57:36,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 576 states. [2020-10-23 19:57:36,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 627 transitions. [2020-10-23 19:57:36,609 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 627 transitions. Word has length 183 [2020-10-23 19:57:36,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:57:36,610 INFO L481 AbstractCegarLoop]: Abstraction has 576 states and 627 transitions. [2020-10-23 19:57:36,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 19:57:36,610 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 627 transitions. [2020-10-23 19:57:36,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-23 19:57:36,614 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:36,614 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] [2020-10-23 19:57:36,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:57:36,615 INFO L429 AbstractCegarLoop]: === Iteration 6 === [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 19:57:36,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:36,615 INFO L82 PathProgramCache]: Analyzing trace with hash -432921097, now seen corresponding path program 1 times [2020-10-23 19:57:36,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:36,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1832158390] [2020-10-23 19:57:36,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:36,619 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:36,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:57:36,723 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:57:36,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:57:36,807 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:57:37,048 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 19:57:37,048 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 19:57:37,051 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 19:57:37,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 07:57:37 BoogieIcfgContainer [2020-10-23 19:57:37,093 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 19:57:37,097 INFO L168 Benchmark]: Toolchain (without parser) took 28508.42 ms. Allocated memory was 125.8 MB in the beginning and 502.3 MB in the end (delta: 376.4 MB). Free memory was 101.8 MB in the beginning and 207.4 MB in the end (delta: -105.6 MB). Peak memory consumption was 271.2 MB. Max. memory is 8.0 GB. [2020-10-23 19:57:37,103 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 125.8 MB. Free memory was 104.6 MB in the beginning and 104.5 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 19:57:37,105 INFO L168 Benchmark]: CACSL2BoogieTranslator took 711.81 ms. Allocated memory is still 125.8 MB. Free memory was 101.1 MB in the beginning and 79.6 MB in the end (delta: 21.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-23 19:57:37,106 INFO L168 Benchmark]: Boogie Preprocessor took 168.86 ms. Allocated memory was 125.8 MB in the beginning and 166.7 MB in the end (delta: 40.9 MB). Free memory was 79.6 MB in the beginning and 149.1 MB in the end (delta: -69.5 MB). Peak memory consumption was 9.2 MB. Max. memory is 8.0 GB. [2020-10-23 19:57:37,107 INFO L168 Benchmark]: RCFGBuilder took 1764.27 ms. Allocated memory is still 166.7 MB. Free memory was 149.1 MB in the beginning and 139.3 MB in the end (delta: 9.8 MB). Peak memory consumption was 60.4 MB. Max. memory is 8.0 GB. [2020-10-23 19:57:37,108 INFO L168 Benchmark]: TraceAbstraction took 25848.05 ms. Allocated memory was 166.7 MB in the beginning and 502.3 MB in the end (delta: 335.5 MB). Free memory was 138.7 MB in the beginning and 207.4 MB in the end (delta: -68.7 MB). Peak memory consumption was 266.4 MB. Max. memory is 8.0 GB. [2020-10-23 19:57:37,118 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 125.8 MB. Free memory was 104.6 MB in the beginning and 104.5 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 711.81 ms. Allocated memory is still 125.8 MB. Free memory was 101.1 MB in the beginning and 79.6 MB in the end (delta: 21.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 168.86 ms. Allocated memory was 125.8 MB in the beginning and 166.7 MB in the end (delta: 40.9 MB). Free memory was 79.6 MB in the beginning and 149.1 MB in the end (delta: -69.5 MB). Peak memory consumption was 9.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1764.27 ms. Allocated memory is still 166.7 MB. Free memory was 149.1 MB in the beginning and 139.3 MB in the end (delta: 9.8 MB). Peak memory consumption was 60.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 25848.05 ms. Allocated memory was 166.7 MB in the beginning and 502.3 MB in the end (delta: 335.5 MB). Free memory was 138.7 MB in the beginning and 207.4 MB in the end (delta: -68.7 MB). Peak memory consumption was 266.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L491] int pumpRunning = 0; [L492] int systemActive = 1; [L719] int cleanupTimeShifts = 4; [L888] int waterLevel = 1; [L889] int methaneLevelCritical = 0; [L795] int retValue_acc ; [L796] int tmp ; [L800] FCALL select_helpers() [L801] FCALL select_features() [L802] CALL, EXPR valid_product() [L879] int retValue_acc ; [L882] retValue_acc = 1 [L883] return (retValue_acc); [L802] RET, EXPR valid_product() [L802] tmp = valid_product() [L804] COND TRUE \read(tmp) [L806] FCALL setup() [L807] CALL runTest() [L786] CALL test() [L415] int splverifierCounter ; [L416] int tmp ; [L417] int tmp___0 ; [L418] int tmp___1 ; [L419] int tmp___2 ; [L422] splverifierCounter = 0 [L424] COND TRUE 1 [L426] COND TRUE splverifierCounter < 4 [L432] tmp = __VERIFIER_nondet_int() [L434] COND TRUE \read(tmp) [L436] CALL waterRise() [L906] COND TRUE waterLevel < 2 [L907] waterLevel = waterLevel + 1 [L436] RET waterRise() [L442] tmp___0 = __VERIFIER_nondet_int() [L444] COND FALSE !(\read(tmp___0)) [L452] tmp___2 = __VERIFIER_nondet_int() [L454] COND FALSE !(\read(tmp___2)) [L460] tmp___1 = __VERIFIER_nondet_int() [L462] COND TRUE \read(tmp___1) [L464] CALL stopSystem() [L690] COND FALSE !(\read(pumpRunning)) [L697] systemActive = 0 [L464] RET stopSystem() [L471] CALL timeShift() [L499] COND FALSE !(\read(pumpRunning)) [L506] COND FALSE !(\read(systemActive)) [L514] CALL __utac_acc__Specification3_spec__1() [L820] int tmp ; [L821] int tmp___0 ; [L822] int tmp___1 ; [L826] CALL, EXPR isMethaneLevelCritical() [L927] int retValue_acc ; [L930] retValue_acc = methaneLevelCritical [L931] return (retValue_acc); [L826] RET, EXPR isMethaneLevelCritical() [L826] tmp = isMethaneLevelCritical() [L828] COND FALSE !(\read(tmp)) [L832] CALL, EXPR getWaterLevel() [L959] int retValue_acc ; [L962] retValue_acc = waterLevel [L963] return (retValue_acc); [L832] RET, EXPR getWaterLevel() [L832] tmp___0 = getWaterLevel() [L834] COND TRUE tmp___0 == 2 [L836] CALL, EXPR isPumpRunning() [L623] int retValue_acc ; [L626] retValue_acc = pumpRunning [L627] return (retValue_acc); [L836] RET, EXPR isPumpRunning() [L836] tmp___1 = isPumpRunning() [L838] COND FALSE !(\read(tmp___1)) [L842] CALL __automaton_fail() [L714] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product32.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 653 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 25.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 19.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1244 SDtfs, 2149 SDslu, 1750 SDs, 0 SdLazy, 3479 SolverSat, 798 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 8.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=821occurred 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: 1.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 358 StatesRemovedByMinimization, 5 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...