/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_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 12:33:29,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 12:33:29,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 12:33:29,822 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 12:33:29,822 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 12:33:29,823 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 12:33:29,824 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 12:33:29,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 12:33:29,828 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 12:33:29,829 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 12:33:29,830 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 12:33:29,831 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 12:33:29,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 12:33:29,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 12:33:29,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 12:33:29,835 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 12:33:29,835 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 12:33:29,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 12:33:29,838 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 12:33:29,840 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 12:33:29,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 12:33:29,842 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 12:33:29,844 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 12:33:29,844 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 12:33:29,847 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 12:33:29,847 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 12:33:29,847 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 12:33:29,848 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 12:33:29,849 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 12:33:29,850 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 12:33:29,850 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 12:33:29,851 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 12:33:29,851 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 12:33:29,852 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 12:33:29,853 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 12:33:29,853 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 12:33:29,854 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 12:33:29,854 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 12:33:29,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 12:33:29,855 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 12:33:29,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 12:33:29,857 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 12:33:29,866 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 12:33:29,867 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 12:33:29,868 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 12:33:29,868 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 12:33:29,868 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 12:33:29,869 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 12:33:29,869 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 12:33:29,869 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 12:33:29,869 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 12:33:29,869 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 12:33:29,870 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 12:33:29,870 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 12:33:29,870 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 12:33:29,870 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 12:33:29,870 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 12:33:29,871 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 12:33:29,871 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 12:33:29,871 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 12:33:29,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:33:29,871 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 12:33:29,872 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 12:33:29,872 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 12:33:29,872 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 12:33:30,175 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 12:33:30,192 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 12:33:30,195 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 12:33:30,196 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 12:33:30,196 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 12:33:30,197 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product28.cil.c [2020-07-07 12:33:30,258 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc3b02088/fd6c6c376b0d4d58af91f42236c9e2ae/FLAG160ec56f5 [2020-07-07 12:33:30,804 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 12:33:30,805 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product28.cil.c [2020-07-07 12:33:30,828 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc3b02088/fd6c6c376b0d4d58af91f42236c9e2ae/FLAG160ec56f5 [2020-07-07 12:33:31,089 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc3b02088/fd6c6c376b0d4d58af91f42236c9e2ae [2020-07-07 12:33:31,099 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 12:33:31,101 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 12:33:31,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 12:33:31,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 12:33:31,106 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 12:33:31,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:33:31" (1/1) ... [2020-07-07 12:33:31,110 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b3c8a28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:31, skipping insertion in model container [2020-07-07 12:33:31,110 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:33:31" (1/1) ... [2020-07-07 12:33:31,118 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 12:33:31,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 12:33:31,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:33:31,603 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 12:33:31,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:33:31,718 INFO L208 MainTranslator]: Completed translation [2020-07-07 12:33:31,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:31 WrapperNode [2020-07-07 12:33:31,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 12:33:31,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 12:33:31,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 12:33:31,719 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 12:33:31,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:31" (1/1) ... [2020-07-07 12:33:31,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:31" (1/1) ... [2020-07-07 12:33:31,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:31" (1/1) ... [2020-07-07 12:33:31,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:31" (1/1) ... [2020-07-07 12:33:31,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:31" (1/1) ... [2020-07-07 12:33:31,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:31" (1/1) ... [2020-07-07 12:33:31,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:31" (1/1) ... [2020-07-07 12:33:31,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 12:33:31,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 12:33:31,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 12:33:31,807 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 12:33:31,808 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:31" (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 [2020-07-07 12:33:31,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 12:33:31,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 12:33:31,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 12:33:31,867 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 12:33:31,867 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 12:33:31,867 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 12:33:31,867 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 12:33:31,867 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 12:33:31,868 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 12:33:31,868 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 12:33:31,868 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-07-07 12:33:31,869 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 12:33:31,869 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 12:33:31,869 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 12:33:31,870 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 12:33:31,870 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 12:33:31,870 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-07 12:33:31,870 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-07 12:33:31,871 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-07 12:33:31,871 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 12:33:31,872 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 12:33:31,872 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 12:33:31,874 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 12:33:31,874 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 12:33:31,875 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 12:33:31,875 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 12:33:31,875 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-07 12:33:31,876 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 12:33:31,876 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 12:33:31,876 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 12:33:31,876 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 12:33:31,876 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 12:33:31,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 12:33:31,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:33:31,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 12:33:31,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 12:33:31,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 12:33:31,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 12:33:31,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 12:33:31,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 12:33:31,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 12:33:31,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 12:33:31,878 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 12:33:31,878 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 12:33:31,879 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 12:33:31,879 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 12:33:31,879 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 12:33:31,879 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 12:33:31,879 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 12:33:31,879 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 12:33:31,879 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-07 12:33:31,880 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 12:33:31,880 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 12:33:31,880 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 12:33:31,880 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 12:33:31,881 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 12:33:31,881 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-07 12:33:31,881 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-07 12:33:31,881 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:33:31,881 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 12:33:31,881 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 12:33:31,882 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-07 12:33:31,882 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-07-07 12:33:31,882 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 12:33:31,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 12:33:31,882 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 12:33:31,882 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 12:33:31,882 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 12:33:31,883 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 12:33:31,883 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 12:33:31,883 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 12:33:31,883 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 12:33:31,883 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 12:33:31,884 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 12:33:31,884 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 12:33:31,884 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 12:33:31,884 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 12:33:31,884 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 12:33:31,884 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 12:33:31,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 12:33:31,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 12:33:31,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 12:33:31,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 12:33:31,885 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 12:33:31,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 12:33:31,885 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 12:33:31,885 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 12:33:31,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 12:33:31,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 12:33:31,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 12:33:31,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 12:33:31,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 12:33:31,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 12:33:31,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 12:33:32,973 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 12:33:32,973 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 12:33:32,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:33:32 BoogieIcfgContainer [2020-07-07 12:33:32,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 12:33:32,987 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 12:33:32,987 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 12:33:32,990 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 12:33:32,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 12:33:31" (1/3) ... [2020-07-07 12:33:32,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e81a27c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:33:32, skipping insertion in model container [2020-07-07 12:33:32,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:31" (2/3) ... [2020-07-07 12:33:32,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e81a27c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:33:32, skipping insertion in model container [2020-07-07 12:33:32,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:33:32" (3/3) ... [2020-07-07 12:33:32,994 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product28.cil.c [2020-07-07 12:33:33,004 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 12:33:33,013 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 12:33:33,027 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 12:33:33,044 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 12:33:33,045 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 12:33:33,045 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 12:33:33,045 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 12:33:33,046 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 12:33:33,046 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 12:33:33,046 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 12:33:33,046 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 12:33:33,066 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2020-07-07 12:33:33,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-07 12:33:33,087 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:33,088 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] [2020-07-07 12:33:33,089 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:33,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:33,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1905765184, now seen corresponding path program 1 times [2020-07-07 12:33:33,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:33,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [140186571] [2020-07-07 12:33:33,105 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:33,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:33,827 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:33,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:33,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:33,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:33,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:33,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:33,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:33,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:33,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:33,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:33:33,982 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:33,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [140186571] [2020-07-07 12:33:33,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:33,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 12:33:33,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081363041] [2020-07-07 12:33:33,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 12:33:33,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:34,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 12:33:34,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:33:34,015 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 3 states. [2020-07-07 12:33:35,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:35,414 INFO L93 Difference]: Finished difference Result 458 states and 546 transitions. [2020-07-07 12:33:35,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 12:33:35,416 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-07-07 12:33:35,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:35,433 INFO L225 Difference]: With dead ends: 458 [2020-07-07 12:33:35,433 INFO L226 Difference]: Without dead ends: 287 [2020-07-07 12:33:35,439 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:33:35,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-07-07 12:33:35,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 245. [2020-07-07 12:33:35,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-07-07 12:33:35,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 265 transitions. [2020-07-07 12:33:35,565 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 265 transitions. Word has length 153 [2020-07-07 12:33:35,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:35,566 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 265 transitions. [2020-07-07 12:33:35,566 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 12:33:35,567 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 265 transitions. [2020-07-07 12:33:35,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-07 12:33:35,571 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:35,571 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] [2020-07-07 12:33:35,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 12:33:35,572 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:35,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:35,572 INFO L82 PathProgramCache]: Analyzing trace with hash 319840535, now seen corresponding path program 1 times [2020-07-07 12:33:35,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:35,573 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [409375358] [2020-07-07 12:33:35,573 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:35,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:35,908 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:35,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:35,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:35,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:35,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:35,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:35,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:35,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:36,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:33:36,019 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:36,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [409375358] [2020-07-07 12:33:36,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:36,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 12:33:36,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648169085] [2020-07-07 12:33:36,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 12:33:36,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:36,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 12:33:36,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 12:33:36,023 INFO L87 Difference]: Start difference. First operand 245 states and 265 transitions. Second operand 4 states. [2020-07-07 12:33:36,610 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:33:37,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:37,407 INFO L93 Difference]: Finished difference Result 365 states and 409 transitions. [2020-07-07 12:33:37,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 12:33:37,408 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-07-07 12:33:37,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:37,412 INFO L225 Difference]: With dead ends: 365 [2020-07-07 12:33:37,412 INFO L226 Difference]: Without dead ends: 270 [2020-07-07 12:33:37,415 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 [2020-07-07 12:33:37,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-07-07 12:33:37,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 235. [2020-07-07 12:33:37,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-07-07 12:33:37,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 252 transitions. [2020-07-07 12:33:37,503 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 252 transitions. Word has length 154 [2020-07-07 12:33:37,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:37,503 INFO L479 AbstractCegarLoop]: Abstraction has 235 states and 252 transitions. [2020-07-07 12:33:37,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 12:33:37,504 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 252 transitions. [2020-07-07 12:33:37,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-07-07 12:33:37,506 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:37,506 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] [2020-07-07 12:33:37,507 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 12:33:37,507 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:37,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:37,507 INFO L82 PathProgramCache]: Analyzing trace with hash 2018801783, now seen corresponding path program 1 times [2020-07-07 12:33:37,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:37,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1129800607] [2020-07-07 12:33:37,508 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:37,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:37,845 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:37,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:37,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:37,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:37,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:37,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:37,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:37,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:37,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:38,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:33:38,001 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:38,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1129800607] [2020-07-07 12:33:38,001 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:38,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-07 12:33:38,002 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193807262] [2020-07-07 12:33:38,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-07 12:33:38,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:38,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-07 12:33:38,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-07 12:33:38,004 INFO L87 Difference]: Start difference. First operand 235 states and 252 transitions. Second operand 10 states. [2020-07-07 12:33:38,636 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:33:39,142 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:33:39,456 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-07 12:33:39,677 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:39,898 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:33:40,127 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:40,991 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:33:43,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:43,080 INFO L93 Difference]: Finished difference Result 647 states and 752 transitions. [2020-07-07 12:33:43,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-07 12:33:43,080 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-07-07 12:33:43,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:43,090 INFO L225 Difference]: With dead ends: 647 [2020-07-07 12:33:43,090 INFO L226 Difference]: Without dead ends: 522 [2020-07-07 12:33:43,094 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-07-07 12:33:43,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2020-07-07 12:33:43,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 431. [2020-07-07 12:33:43,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 431 states. [2020-07-07 12:33:43,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 480 transitions. [2020-07-07 12:33:43,302 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 480 transitions. Word has length 167 [2020-07-07 12:33:43,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:43,303 INFO L479 AbstractCegarLoop]: Abstraction has 431 states and 480 transitions. [2020-07-07 12:33:43,303 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-07 12:33:43,303 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 480 transitions. [2020-07-07 12:33:43,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-07-07 12:33:43,306 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:43,306 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] [2020-07-07 12:33:43,307 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 12:33:43,307 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:43,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:43,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1851726168, now seen corresponding path program 1 times [2020-07-07 12:33:43,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:43,308 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2064968677] [2020-07-07 12:33:43,308 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:43,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:43,673 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:43,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:43,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:43,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:43,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:43,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:43,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:43,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:43,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:43,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:33:43,838 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:43,839 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2064968677] [2020-07-07 12:33:43,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:43,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:33:43,840 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406684959] [2020-07-07 12:33:43,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:33:43,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:43,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:33:43,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:33:43,842 INFO L87 Difference]: Start difference. First operand 431 states and 480 transitions. Second operand 9 states. [2020-07-07 12:33:44,457 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:33:46,044 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:46,288 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:33:46,636 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:46,919 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:33:47,158 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:33:47,389 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:47,624 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:48,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:48,300 INFO L93 Difference]: Finished difference Result 1151 states and 1381 transitions. [2020-07-07 12:33:48,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-07 12:33:48,300 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-07-07 12:33:48,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:48,307 INFO L225 Difference]: With dead ends: 1151 [2020-07-07 12:33:48,307 INFO L226 Difference]: Without dead ends: 830 [2020-07-07 12:33:48,309 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-07-07 12:33:48,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2020-07-07 12:33:48,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 731. [2020-07-07 12:33:48,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 731 states. [2020-07-07 12:33:48,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 837 transitions. [2020-07-07 12:33:48,549 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 837 transitions. Word has length 172 [2020-07-07 12:33:48,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:48,550 INFO L479 AbstractCegarLoop]: Abstraction has 731 states and 837 transitions. [2020-07-07 12:33:48,550 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:33:48,550 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 837 transitions. [2020-07-07 12:33:48,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-07 12:33:48,554 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:48,555 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] [2020-07-07 12:33:48,555 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 12:33:48,555 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:48,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:48,555 INFO L82 PathProgramCache]: Analyzing trace with hash 525017164, now seen corresponding path program 1 times [2020-07-07 12:33:48,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:48,556 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1912621656] [2020-07-07 12:33:48,556 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:48,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:33:48,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:33:48,866 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:48,866 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 12:33:48,867 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 12:33:48,868 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 12:33:48,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 12:33:48 BoogieIcfgContainer [2020-07-07 12:33:48,890 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 12:33:48,892 INFO L168 Benchmark]: Toolchain (without parser) took 17791.46 ms. Allocated memory was 143.7 MB in the beginning and 613.4 MB in the end (delta: 469.8 MB). Free memory was 100.6 MB in the beginning and 260.1 MB in the end (delta: -159.4 MB). Peak memory consumption was 310.3 MB. Max. memory is 7.1 GB. [2020-07-07 12:33:48,893 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 143.7 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-07 12:33:48,894 INFO L168 Benchmark]: CACSL2BoogieTranslator took 616.33 ms. Allocated memory was 143.7 MB in the beginning and 201.3 MB in the end (delta: 57.7 MB). Free memory was 100.4 MB in the beginning and 170.0 MB in the end (delta: -69.6 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2020-07-07 12:33:48,895 INFO L168 Benchmark]: Boogie Preprocessor took 87.13 ms. Allocated memory is still 201.3 MB. Free memory was 170.0 MB in the beginning and 165.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-07-07 12:33:48,896 INFO L168 Benchmark]: RCFGBuilder took 1179.19 ms. Allocated memory was 201.3 MB in the beginning and 231.7 MB in the end (delta: 30.4 MB). Free memory was 165.8 MB in the beginning and 174.5 MB in the end (delta: -8.7 MB). Peak memory consumption was 87.1 MB. Max. memory is 7.1 GB. [2020-07-07 12:33:48,897 INFO L168 Benchmark]: TraceAbstraction took 15903.70 ms. Allocated memory was 231.7 MB in the beginning and 613.4 MB in the end (delta: 381.7 MB). Free memory was 174.5 MB in the beginning and 260.1 MB in the end (delta: -85.5 MB). Peak memory consumption was 296.2 MB. Max. memory is 7.1 GB. [2020-07-07 12:33:48,901 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 143.7 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 616.33 ms. Allocated memory was 143.7 MB in the beginning and 201.3 MB in the end (delta: 57.7 MB). Free memory was 100.4 MB in the beginning and 170.0 MB in the end (delta: -69.6 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.13 ms. Allocated memory is still 201.3 MB. Free memory was 170.0 MB in the beginning and 165.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1179.19 ms. Allocated memory was 201.3 MB in the beginning and 231.7 MB in the end (delta: 30.4 MB). Free memory was 165.8 MB in the beginning and 174.5 MB in the end (delta: -8.7 MB). Peak memory consumption was 87.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15903.70 ms. Allocated memory was 231.7 MB in the beginning and 613.4 MB in the end (delta: 381.7 MB). Free memory was 174.5 MB in the beginning and 260.1 MB in the end (delta: -85.5 MB). Peak memory consumption was 296.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 545]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L89] int pumpRunning = 0; [L90] int systemActive = 1; [L356] int waterLevel = 1; [L357] int methaneLevelCritical = 0; [L445] int cleanupTimeShifts = 4; [L753] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L518] int retValue_acc ; [L519] int tmp ; [L523] FCALL select_helpers() [L524] FCALL select_features() [L525] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L525] RET, EXPR valid_product() [L525] tmp = valid_product() [L527] COND TRUE \read(tmp) [L529] FCALL setup() [L530] CALL runTest() [L512] CALL test() [L287] int splverifierCounter ; [L288] int tmp ; [L289] int tmp___0 ; [L290] int tmp___1 ; [L291] int tmp___2 ; [L294] splverifierCounter = 0 [L296] COND TRUE 1 [L298] COND TRUE splverifierCounter < 4 [L304] tmp = __VERIFIER_nondet_int() [L306] COND TRUE \read(tmp) [L308] CALL waterRise() [L374] COND TRUE waterLevel < 2 [L375] waterLevel = waterLevel + 1 [L308] RET waterRise() [L314] tmp___0 = __VERIFIER_nondet_int() [L316] COND FALSE !(\read(tmp___0)) [L324] tmp___2 = __VERIFIER_nondet_int() [L326] COND FALSE !(\read(tmp___2)) [L332] tmp___1 = __VERIFIER_nondet_int() [L334] COND TRUE \read(tmp___1) [L336] CALL stopSystem() [L263] COND FALSE !(\read(pumpRunning)) [L270] systemActive = 0 [L336] RET stopSystem() [L343] CALL timeShift() [L97] COND FALSE !(\read(pumpRunning)) [L104] COND FALSE !(\read(systemActive)) [L112] CALL __utac_acc__Specification3_spec__1() [L551] int tmp ; [L552] int tmp___0 ; [L553] int tmp___1 ; [L557] CALL, EXPR isMethaneLevelCritical() [L395] int retValue_acc ; [L398] retValue_acc = methaneLevelCritical [L399] return (retValue_acc); [L557] RET, EXPR isMethaneLevelCritical() [L557] tmp = isMethaneLevelCritical() [L559] COND FALSE !(\read(tmp)) [L563] CALL, EXPR getWaterLevel() [L427] int retValue_acc ; [L430] retValue_acc = waterLevel [L431] return (retValue_acc); [L563] RET, EXPR getWaterLevel() [L563] tmp___0 = getWaterLevel() [L565] COND TRUE tmp___0 == 2 [L567] CALL, EXPR isPumpRunning() [L196] int retValue_acc ; [L199] retValue_acc = pumpRunning [L200] return (retValue_acc); [L567] RET, EXPR isPumpRunning() [L567] tmp___1 = isPumpRunning() [L569] COND FALSE !(\read(tmp___1)) [L573] CALL __automaton_fail() [L545] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 628 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 12.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 952 SDtfs, 1387 SDslu, 1400 SDs, 0 SdLazy, 2905 SolverSat, 480 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.4s 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=731occurred 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: 0.6s AutomataMinimizationTime, 4 MinimizatonAttempts, 267 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...