/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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_product64.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 18:06:08,496 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 18:06:08,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 18:06:08,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 18:06:08,542 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 18:06:08,543 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 18:06:08,545 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 18:06:08,547 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 18:06:08,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 18:06:08,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 18:06:08,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 18:06:08,551 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 18:06:08,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 18:06:08,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 18:06:08,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 18:06:08,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 18:06:08,555 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 18:06:08,556 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 18:06:08,558 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 18:06:08,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 18:06:08,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 18:06:08,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 18:06:08,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 18:06:08,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 18:06:08,567 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 18:06:08,567 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 18:06:08,568 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 18:06:08,569 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 18:06:08,569 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 18:06:08,570 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 18:06:08,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 18:06:08,571 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 18:06:08,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 18:06:08,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 18:06:08,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 18:06:08,573 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 18:06:08,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 18:06:08,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 18:06:08,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 18:06:08,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 18:06:08,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 18:06:08,577 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 18:06:08,586 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 18:06:08,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 18:06:08,587 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 18:06:08,588 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 18:06:08,588 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 18:06:08,588 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 18:06:08,588 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 18:06:08,588 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 18:06:08,589 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 18:06:08,589 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 18:06:08,589 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 18:06:08,589 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 18:06:08,589 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 18:06:08,589 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 18:06:08,590 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 18:06:08,590 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 18:06:08,590 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 18:06:08,590 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 18:06:08,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 18:06:08,591 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 18:06:08,591 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 18:06:08,591 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 18:06:08,591 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 18:06:08,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 18:06:08,900 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 18:06:08,903 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 18:06:08,905 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 18:06:08,905 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 18:06:08,906 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c [2020-08-22 18:06:08,981 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28d341692/2ad002434be24c21a1f20d2bcebf501d/FLAGe6dfa9178 [2020-08-22 18:06:09,561 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 18:06:09,565 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c [2020-08-22 18:06:09,578 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28d341692/2ad002434be24c21a1f20d2bcebf501d/FLAGe6dfa9178 [2020-08-22 18:06:09,809 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28d341692/2ad002434be24c21a1f20d2bcebf501d [2020-08-22 18:06:09,819 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 18:06:09,820 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 18:06:09,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 18:06:09,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 18:06:09,827 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 18:06:09,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:06:09" (1/1) ... [2020-08-22 18:06:09,832 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f4e1eb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:09, skipping insertion in model container [2020-08-22 18:06:09,832 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:06:09" (1/1) ... [2020-08-22 18:06:09,841 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 18:06:09,904 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 18:06:10,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:06:10,439 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 18:06:10,520 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:06:10,566 INFO L208 MainTranslator]: Completed translation [2020-08-22 18:06:10,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:10 WrapperNode [2020-08-22 18:06:10,566 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 18:06:10,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 18:06:10,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 18:06:10,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 18:06:10,578 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:10" (1/1) ... [2020-08-22 18:06:10,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:10" (1/1) ... [2020-08-22 18:06:10,598 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:10" (1/1) ... [2020-08-22 18:06:10,598 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:10" (1/1) ... [2020-08-22 18:06:10,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:10" (1/1) ... [2020-08-22 18:06:10,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:10" (1/1) ... [2020-08-22 18:06:10,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:10" (1/1) ... [2020-08-22 18:06:10,652 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 18:06:10,652 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 18:06:10,652 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 18:06:10,653 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 18:06:10,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:10" (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 [2020-08-22 18:06:10,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 18:06:10,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 18:06:10,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 18:06:10,714 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 18:06:10,714 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 18:06:10,714 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 18:06:10,715 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 18:06:10,715 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 18:06:10,715 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 18:06:10,715 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-22 18:06:10,715 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-08-22 18:06:10,715 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 18:06:10,715 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-08-22 18:06:10,716 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 18:06:10,716 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 18:06:10,716 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 18:06:10,716 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 18:06:10,716 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 18:06:10,716 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-22 18:06:10,717 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-22 18:06:10,717 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-22 18:06:10,717 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-22 18:06:10,717 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 18:06:10,717 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 18:06:10,717 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 18:06:10,718 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 18:06:10,718 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 18:06:10,718 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 18:06:10,718 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 18:06:10,718 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-22 18:06:10,718 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-22 18:06:10,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 18:06:10,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 18:06:10,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 18:06:10,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 18:06:10,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 18:06:10,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 18:06:10,719 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 18:06:10,720 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 18:06:10,720 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 18:06:10,720 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 18:06:10,720 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 18:06:10,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 18:06:10,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-22 18:06:10,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 18:06:10,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 18:06:10,721 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 18:06:10,721 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 18:06:10,721 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 18:06:10,722 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 18:06:10,722 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 18:06:10,722 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 18:06:10,722 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 18:06:10,722 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 18:06:10,722 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-22 18:06:10,722 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-22 18:06:10,723 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 18:06:10,723 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 18:06:10,723 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 18:06:10,723 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 18:06:10,723 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 18:06:10,723 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-22 18:06:10,724 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-22 18:06:10,724 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-22 18:06:10,724 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 18:06:10,724 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 18:06:10,724 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-22 18:06:10,724 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-22 18:06:10,725 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-22 18:06:10,725 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-08-22 18:06:10,725 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 18:06:10,725 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-08-22 18:06:10,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 18:06:10,725 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 18:06:10,726 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 18:06:10,726 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 18:06:10,726 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 18:06:10,726 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 18:06:10,726 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 18:06:10,727 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 18:06:10,727 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 18:06:10,727 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 18:06:10,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 18:06:10,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 18:06:10,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 18:06:10,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 18:06:10,730 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 18:06:10,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 18:06:10,731 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 18:06:10,732 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 18:06:10,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 18:06:10,732 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 18:06:10,732 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 18:06:10,732 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 18:06:10,732 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 18:06:10,733 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 18:06:10,734 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 18:06:10,735 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 18:06:10,735 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 18:06:10,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 18:06:10,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 18:06:10,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 18:06:11,912 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 18:06:11,912 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 18:06:11,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:06:11 BoogieIcfgContainer [2020-08-22 18:06:11,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 18:06:11,925 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 18:06:11,925 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 18:06:11,929 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 18:06:11,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:06:09" (1/3) ... [2020-08-22 18:06:11,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ce910af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:06:11, skipping insertion in model container [2020-08-22 18:06:11,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:10" (2/3) ... [2020-08-22 18:06:11,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ce910af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:06:11, skipping insertion in model container [2020-08-22 18:06:11,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:06:11" (3/3) ... [2020-08-22 18:06:11,934 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product64.cil.c [2020-08-22 18:06:11,945 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 18:06:11,953 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 18:06:11,967 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 18:06:11,987 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 18:06:11,987 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 18:06:11,987 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 18:06:11,987 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 18:06:11,988 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 18:06:11,988 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 18:06:11,988 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 18:06:11,988 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 18:06:12,010 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-08-22 18:06:12,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-08-22 18:06:12,033 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:06:12,035 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] [2020-08-22 18:06:12,035 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:06:12,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:06:12,042 INFO L82 PathProgramCache]: Analyzing trace with hash -1409886201, now seen corresponding path program 1 times [2020-08-22 18:06:12,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:06:12,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1974402843] [2020-08-22 18:06:12,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:06:12,108 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:06:12,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:12,790 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:06:12,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:06:12,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:12,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:06:12,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:12,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:06:12,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:12,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:06:12,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:12,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:06:12,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:12,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 18:06:12,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:12,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 18:06:12,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:12,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-22 18:06:12,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:12,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:06:12,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1974402843] [2020-08-22 18:06:12,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:06:12,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:06:12,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923658760] [2020-08-22 18:06:12,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:06:12,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:06:13,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:06:13,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:06:13,011 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 3 states. [2020-08-22 18:06:14,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:06:14,606 INFO L93 Difference]: Finished difference Result 596 states and 710 transitions. [2020-08-22 18:06:14,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:06:14,608 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-08-22 18:06:14,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:06:14,628 INFO L225 Difference]: With dead ends: 596 [2020-08-22 18:06:14,628 INFO L226 Difference]: Without dead ends: 359 [2020-08-22 18:06:14,634 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:06:14,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2020-08-22 18:06:14,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 311. [2020-08-22 18:06:14,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 311 states. [2020-08-22 18:06:14,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 343 transitions. [2020-08-22 18:06:14,813 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 343 transitions. Word has length 153 [2020-08-22 18:06:14,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:06:14,814 INFO L479 AbstractCegarLoop]: Abstraction has 311 states and 343 transitions. [2020-08-22 18:06:14,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:06:14,815 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 343 transitions. [2020-08-22 18:06:14,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-08-22 18:06:14,820 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:06:14,820 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] [2020-08-22 18:06:14,821 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 18:06:14,821 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:06:14,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:06:14,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1484490913, now seen corresponding path program 1 times [2020-08-22 18:06:14,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:06:14,822 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [67447688] [2020-08-22 18:06:14,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:06:14,826 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:06:14,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:15,205 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:06:15,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:06:15,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:15,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:06:15,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:15,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:06:15,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:15,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:06:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:15,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:06:15,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:15,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-22 18:06:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:15,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-08-22 18:06:15,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:15,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-08-22 18:06:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:15,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:06:15,281 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [67447688] [2020-08-22 18:06:15,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:06:15,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 18:06:15,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415479712] [2020-08-22 18:06:15,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 18:06:15,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:06:15,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 18:06:15,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 18:06:15,284 INFO L87 Difference]: Start difference. First operand 311 states and 343 transitions. Second operand 4 states. [2020-08-22 18:06:15,948 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:06:17,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:06:17,255 INFO L93 Difference]: Finished difference Result 503 states and 573 transitions. [2020-08-22 18:06:17,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 18:06:17,256 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-08-22 18:06:17,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:06:17,262 INFO L225 Difference]: With dead ends: 503 [2020-08-22 18:06:17,263 INFO L226 Difference]: Without dead ends: 342 [2020-08-22 18:06:17,267 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-22 18:06:17,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-08-22 18:06:17,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 301. [2020-08-22 18:06:17,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-08-22 18:06:17,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 330 transitions. [2020-08-22 18:06:17,393 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 330 transitions. Word has length 154 [2020-08-22 18:06:17,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:06:17,394 INFO L479 AbstractCegarLoop]: Abstraction has 301 states and 330 transitions. [2020-08-22 18:06:17,394 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 18:06:17,395 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 330 transitions. [2020-08-22 18:06:17,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-08-22 18:06:17,397 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:06:17,398 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] [2020-08-22 18:06:17,398 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 18:06:17,398 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:06:17,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:06:17,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1631977851, now seen corresponding path program 1 times [2020-08-22 18:06:17,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:06:17,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1620674832] [2020-08-22 18:06:17,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:06:17,402 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:06:17,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:17,721 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:06:17,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:06:17,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:17,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:06:17,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:17,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:06:17,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:17,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:06:17,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:17,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:06:17,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:17,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-08-22 18:06:17,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:17,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-22 18:06:17,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:17,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-08-22 18:06:17,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:17,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-08-22 18:06:17,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:17,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:06:17,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1620674832] [2020-08-22 18:06:17,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:06:17,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 18:06:17,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244794152] [2020-08-22 18:06:17,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 18:06:17,862 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:06:17,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 18:06:17,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-22 18:06:17,863 INFO L87 Difference]: Start difference. First operand 301 states and 330 transitions. Second operand 10 states. [2020-08-22 18:06:18,569 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 18:06:19,033 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:06:19,349 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:06:19,581 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:06:19,843 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:06:20,074 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:06:20,967 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:06:24,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:06:24,275 INFO L93 Difference]: Finished difference Result 857 states and 1002 transitions. [2020-08-22 18:06:24,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 18:06:24,275 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-08-22 18:06:24,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:06:24,282 INFO L225 Difference]: With dead ends: 857 [2020-08-22 18:06:24,282 INFO L226 Difference]: Without dead ends: 666 [2020-08-22 18:06:24,284 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-08-22 18:06:24,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2020-08-22 18:06:24,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 563. [2020-08-22 18:06:24,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 563 states. [2020-08-22 18:06:24,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 636 transitions. [2020-08-22 18:06:24,538 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 636 transitions. Word has length 167 [2020-08-22 18:06:24,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:06:24,538 INFO L479 AbstractCegarLoop]: Abstraction has 563 states and 636 transitions. [2020-08-22 18:06:24,538 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 18:06:24,539 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 636 transitions. [2020-08-22 18:06:24,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-08-22 18:06:24,542 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:06:24,543 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] [2020-08-22 18:06:24,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 18:06:24,543 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:06:24,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:06:24,544 INFO L82 PathProgramCache]: Analyzing trace with hash -1733471064, now seen corresponding path program 1 times [2020-08-22 18:06:24,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:06:24,545 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1950600247] [2020-08-22 18:06:24,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:06:24,548 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:06:24,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:24,892 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:06:24,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:06:24,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:24,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:06:24,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:24,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:06:24,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:24,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:06:24,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:24,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:06:24,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:25,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-08-22 18:06:25,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:25,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-08-22 18:06:25,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:25,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-22 18:06:25,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:25,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-08-22 18:06:25,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:25,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:06:25,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1950600247] [2020-08-22 18:06:25,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:06:25,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 18:06:25,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214478934] [2020-08-22 18:06:25,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 18:06:25,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:06:25,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 18:06:25,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 18:06:25,096 INFO L87 Difference]: Start difference. First operand 563 states and 636 transitions. Second operand 9 states. [2020-08-22 18:06:25,532 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 18:06:27,600 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:06:27,921 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:06:28,321 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:06:28,624 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 18:06:28,856 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:06:29,091 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:06:29,306 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:06:30,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:06:30,662 INFO L93 Difference]: Finished difference Result 1567 states and 1891 transitions. [2020-08-22 18:06:30,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-22 18:06:30,663 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-08-22 18:06:30,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:06:30,670 INFO L225 Difference]: With dead ends: 1567 [2020-08-22 18:06:30,671 INFO L226 Difference]: Without dead ends: 1114 [2020-08-22 18:06:30,673 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-08-22 18:06:30,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2020-08-22 18:06:31,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 1003. [2020-08-22 18:06:31,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1003 states. [2020-08-22 18:06:31,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1159 transitions. [2020-08-22 18:06:31,070 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1159 transitions. Word has length 172 [2020-08-22 18:06:31,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:06:31,074 INFO L479 AbstractCegarLoop]: Abstraction has 1003 states and 1159 transitions. [2020-08-22 18:06:31,074 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 18:06:31,074 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1159 transitions. [2020-08-22 18:06:31,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-08-22 18:06:31,082 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:06:31,082 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] [2020-08-22 18:06:31,083 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 18:06:31,083 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:06:31,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:06:31,084 INFO L82 PathProgramCache]: Analyzing trace with hash 102633961, now seen corresponding path program 1 times [2020-08-22 18:06:31,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:06:31,084 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [78212547] [2020-08-22 18:06:31,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:06:31,088 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:06:31,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:06:31,161 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:06:31,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:06:31,269 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:06:31,521 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 18:06:31,521 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 18:06:31,523 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 18:06:31,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 06:06:31 BoogieIcfgContainer [2020-08-22 18:06:31,556 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 18:06:31,558 INFO L168 Benchmark]: Toolchain (without parser) took 21737.92 ms. Allocated memory was 146.8 MB in the beginning and 635.4 MB in the end (delta: 488.6 MB). Free memory was 103.4 MB in the beginning and 512.6 MB in the end (delta: -409.2 MB). Peak memory consumption was 79.5 MB. Max. memory is 7.1 GB. [2020-08-22 18:06:31,560 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 146.8 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 18:06:31,566 INFO L168 Benchmark]: CACSL2BoogieTranslator took 744.73 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 103.2 MB in the beginning and 172.0 MB in the end (delta: -68.8 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. [2020-08-22 18:06:31,568 INFO L168 Benchmark]: Boogie Preprocessor took 84.89 ms. Allocated memory is still 203.9 MB. Free memory was 172.0 MB in the beginning and 167.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-08-22 18:06:31,569 INFO L168 Benchmark]: RCFGBuilder took 1271.26 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 167.2 MB in the beginning and 169.2 MB in the end (delta: -2.0 MB). Peak memory consumption was 81.2 MB. Max. memory is 7.1 GB. [2020-08-22 18:06:31,570 INFO L168 Benchmark]: TraceAbstraction took 19632.01 ms. Allocated memory was 235.9 MB in the beginning and 635.4 MB in the end (delta: 399.5 MB). Free memory was 167.8 MB in the beginning and 512.6 MB in the end (delta: -344.7 MB). Peak memory consumption was 54.8 MB. Max. memory is 7.1 GB. [2020-08-22 18:06:31,582 INFO L336 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 146.8 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 744.73 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 103.2 MB in the beginning and 172.0 MB in the end (delta: -68.8 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 84.89 ms. Allocated memory is still 203.9 MB. Free memory was 172.0 MB in the beginning and 167.9 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1271.26 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 167.2 MB in the beginning and 169.2 MB in the end (delta: -2.0 MB). Peak memory consumption was 81.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19632.01 ms. Allocated memory was 235.9 MB in the beginning and 635.4 MB in the end (delta: 399.5 MB). Free memory was 167.8 MB in the beginning and 512.6 MB in the end (delta: -344.7 MB). Peak memory consumption was 54.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 996]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L90] int pumpRunning = 0; [L91] int systemActive = 1; [L427] int waterLevel = 1; [L428] int methaneLevelCritical = 0; [L699] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L896] int cleanupTimeShifts = 4; [L969] int retValue_acc ; [L970] int tmp ; [L974] FCALL select_helpers() [L975] FCALL select_features() [L976] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L976] RET, EXPR valid_product() [L976] tmp = valid_product() [L978] COND TRUE \read(tmp) [L980] FCALL setup() [L981] CALL runTest() [L963] CALL test() [L358] int splverifierCounter ; [L359] int tmp ; [L360] int tmp___0 ; [L361] int tmp___1 ; [L362] int tmp___2 ; [L365] splverifierCounter = 0 [L367] COND TRUE 1 [L369] COND TRUE splverifierCounter < 4 [L375] tmp = __VERIFIER_nondet_int() [L377] COND TRUE \read(tmp) [L379] CALL waterRise() [L445] COND TRUE waterLevel < 2 [L446] waterLevel = waterLevel + 1 [L379] RET waterRise() [L385] tmp___0 = __VERIFIER_nondet_int() [L387] COND FALSE !(\read(tmp___0)) [L395] tmp___2 = __VERIFIER_nondet_int() [L397] COND FALSE !(\read(tmp___2)) [L403] tmp___1 = __VERIFIER_nondet_int() [L405] COND TRUE \read(tmp___1) [L407] CALL stopSystem() [L334] COND FALSE !(\read(pumpRunning)) [L341] systemActive = 0 [L407] RET stopSystem() [L414] CALL timeShift() [L98] COND FALSE !(\read(pumpRunning)) [L105] COND FALSE !(\read(systemActive)) [L113] CALL __utac_acc__Specification3_spec__1() [L1002] int tmp ; [L1003] int tmp___0 ; [L1004] int tmp___1 ; [L1008] CALL, EXPR isMethaneLevelCritical() [L466] int retValue_acc ; [L469] retValue_acc = methaneLevelCritical [L470] return (retValue_acc); [L1008] RET, EXPR isMethaneLevelCritical() [L1008] tmp = isMethaneLevelCritical() [L1010] COND FALSE !(\read(tmp)) [L1014] CALL, EXPR getWaterLevel() [L498] int retValue_acc ; [L501] retValue_acc = waterLevel [L502] return (retValue_acc); [L1014] RET, EXPR getWaterLevel() [L1014] tmp___0 = getWaterLevel() [L1016] COND TRUE tmp___0 == 2 [L1018] CALL, EXPR isPumpRunning() [L248] int retValue_acc ; [L251] retValue_acc = pumpRunning [L252] return (retValue_acc); [L1018] RET, EXPR isPumpRunning() [L1018] tmp___1 = isPumpRunning() [L1020] COND FALSE !(\read(tmp___1)) [L1024] CALL __automaton_fail() [L996] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 44 procedures, 674 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 15.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1195 SDtfs, 1950 SDslu, 1496 SDs, 0 SdLazy, 3916 SolverSat, 721 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1003occurred 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: 0.9s AutomataMinimizationTime, 4 MinimizatonAttempts, 303 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...