/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_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 15:24:25,628 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 15:24:25,633 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 15:24:25,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 15:24:25,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 15:24:25,684 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 15:24:25,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 15:24:25,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 15:24:25,693 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 15:24:25,696 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 15:24:25,697 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 15:24:25,699 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 15:24:25,700 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 15:24:25,703 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 15:24:25,704 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 15:24:25,706 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 15:24:25,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 15:24:25,709 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 15:24:25,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 15:24:25,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 15:24:25,720 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 15:24:25,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 15:24:25,723 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 15:24:25,724 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 15:24:25,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 15:24:25,729 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 15:24:25,729 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 15:24:25,732 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 15:24:25,732 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 15:24:25,734 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 15:24:25,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 15:24:25,737 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 15:24:25,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 15:24:25,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 15:24:25,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 15:24:25,740 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 15:24:25,741 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 15:24:25,741 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 15:24:25,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 15:24:25,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 15:24:25,744 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 15:24:25,745 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 15:24:25,763 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 15:24:25,763 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 15:24:25,765 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 15:24:25,766 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 15:24:25,766 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 15:24:25,766 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 15:24:25,766 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 15:24:25,767 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 15:24:25,767 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 15:24:25,767 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 15:24:25,768 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 15:24:25,768 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 15:24:25,768 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 15:24:25,769 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 15:24:25,769 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 15:24:25,769 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 15:24:25,770 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 15:24:25,770 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 15:24:25,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 15:24:25,770 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 15:24:25,770 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 15:24:25,771 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 15:24:25,771 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 15:24:26,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 15:24:26,204 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 15:24:26,208 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 15:24:26,209 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 15:24:26,210 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 15:24:26,211 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product40.cil.c [2020-09-04 15:24:26,290 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/01e5cdb3a/5c31de3e306d40efb7f5bc26642e66a1/FLAGbb4512224 [2020-09-04 15:24:26,926 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 15:24:26,927 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product40.cil.c [2020-09-04 15:24:26,940 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/01e5cdb3a/5c31de3e306d40efb7f5bc26642e66a1/FLAGbb4512224 [2020-09-04 15:24:27,186 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/01e5cdb3a/5c31de3e306d40efb7f5bc26642e66a1 [2020-09-04 15:24:27,198 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 15:24:27,200 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 15:24:27,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 15:24:27,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 15:24:27,206 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 15:24:27,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 03:24:27" (1/1) ... [2020-09-04 15:24:27,212 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@701ef800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:24:27, skipping insertion in model container [2020-09-04 15:24:27,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 03:24:27" (1/1) ... [2020-09-04 15:24:27,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 15:24:27,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 15:24:27,626 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 15:24:27,740 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 15:24:27,824 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 15:24:27,874 INFO L208 MainTranslator]: Completed translation [2020-09-04 15:24:27,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:24:27 WrapperNode [2020-09-04 15:24:27,875 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 15:24:27,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 15:24:27,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 15:24:27,876 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 15:24:27,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:24:27" (1/1) ... [2020-09-04 15:24:27,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:24:27" (1/1) ... [2020-09-04 15:24:27,912 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:24:27" (1/1) ... [2020-09-04 15:24:27,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:24:27" (1/1) ... [2020-09-04 15:24:27,949 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:24:27" (1/1) ... [2020-09-04 15:24:27,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:24:27" (1/1) ... [2020-09-04 15:24:27,968 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:24:27" (1/1) ... [2020-09-04 15:24:27,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 15:24:27,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 15:24:27,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 15:24:27,977 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 15:24:27,978 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:24:27" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 15:24:28,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 15:24:28,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 15:24:28,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-04 15:24:28,057 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-04 15:24:28,057 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-04 15:24:28,057 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-04 15:24:28,057 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-04 15:24:28,057 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 15:24:28,057 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-04 15:24:28,058 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-04 15:24:28,058 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-04 15:24:28,058 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-04 15:24:28,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-04 15:24:28,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-04 15:24:28,059 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-04 15:24:28,059 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-04 15:24:28,059 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-04 15:24:28,059 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-04 15:24:28,059 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-04 15:24:28,059 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-04 15:24:28,060 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-04 15:24:28,060 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-04 15:24:28,060 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-04 15:24:28,060 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-04 15:24:28,061 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-04 15:24:28,061 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-04 15:24:28,061 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-04 15:24:28,061 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-04 15:24:28,061 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-04 15:24:28,061 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-04 15:24:28,062 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-04 15:24:28,062 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-04 15:24:28,062 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-04 15:24:28,062 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-04 15:24:28,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-04 15:24:28,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-04 15:24:28,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-04 15:24:28,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-04 15:24:28,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-04 15:24:28,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-04 15:24:28,063 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 15:24:28,063 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 15:24:28,063 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-04 15:24:28,063 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-04 15:24:28,063 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-04 15:24:28,064 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-04 15:24:28,064 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-04 15:24:28,064 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-04 15:24:28,064 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-04 15:24:28,064 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-04 15:24:28,064 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-04 15:24:28,064 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-04 15:24:28,065 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-04 15:24:28,065 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-04 15:24:28,065 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-04 15:24:28,065 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 15:24:28,065 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-04 15:24:28,065 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-04 15:24:28,066 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-04 15:24:28,066 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-04 15:24:28,066 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-04 15:24:28,066 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-04 15:24:28,066 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-04 15:24:28,066 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-04 15:24:28,067 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-04 15:24:28,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 15:24:28,067 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-04 15:24:28,067 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-04 15:24:28,067 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-04 15:24:28,067 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-04 15:24:28,068 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-04 15:24:28,068 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-04 15:24:28,068 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-04 15:24:28,068 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-04 15:24:28,068 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-04 15:24:28,068 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-04 15:24:28,069 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 15:24:28,069 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 15:24:28,069 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-04 15:24:28,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 15:24:28,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 15:24:28,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 15:24:28,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 15:24:28,070 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-04 15:24:28,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 15:24:28,070 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-04 15:24:28,070 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-04 15:24:28,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 15:24:28,070 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-04 15:24:28,071 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-04 15:24:28,071 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-04 15:24:28,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 15:24:28,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 15:24:28,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 15:24:29,238 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 15:24:29,239 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 15:24:29,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 03:24:29 BoogieIcfgContainer [2020-09-04 15:24:29,246 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 15:24:29,247 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 15:24:29,247 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 15:24:29,251 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 15:24:29,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 03:24:27" (1/3) ... [2020-09-04 15:24:29,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d773a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 03:24:29, skipping insertion in model container [2020-09-04 15:24:29,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:24:27" (2/3) ... [2020-09-04 15:24:29,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d773a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 03:24:29, skipping insertion in model container [2020-09-04 15:24:29,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 03:24:29" (3/3) ... [2020-09-04 15:24:29,255 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product40.cil.c [2020-09-04 15:24:29,266 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 15:24:29,277 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 15:24:29,300 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 15:24:29,328 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 15:24:29,328 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 15:24:29,328 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 15:24:29,329 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 15:24:29,329 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 15:24:29,329 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 15:24:29,329 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 15:24:29,329 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 15:24:29,352 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states. [2020-09-04 15:24:29,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-04 15:24:29,376 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:24:29,378 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] [2020-09-04 15:24:29,378 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:24:29,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:24:29,385 INFO L82 PathProgramCache]: Analyzing trace with hash 396628182, now seen corresponding path program 1 times [2020-09-04 15:24:29,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:24:29,395 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1379862410] [2020-09-04 15:24:29,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:24:29,465 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:24:29,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:30,141 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:24:30,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:24:30,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:30,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:24:30,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:30,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:24:30,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:30,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:24:30,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:30,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:24:30,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:30,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-04 15:24:30,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:30,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 15:24:30,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:30,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-04 15:24:30,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:30,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:24:30,343 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1379862410] [2020-09-04 15:24:30,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:24:30,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 15:24:30,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039026979] [2020-09-04 15:24:30,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 15:24:30,354 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:24:30,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 15:24:30,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 15:24:30,377 INFO L87 Difference]: Start difference. First operand 322 states. Second operand 3 states. [2020-09-04 15:24:31,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:24:31,866 INFO L93 Difference]: Finished difference Result 512 states and 611 transitions. [2020-09-04 15:24:31,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 15:24:31,869 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-04 15:24:31,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:24:31,903 INFO L225 Difference]: With dead ends: 512 [2020-09-04 15:24:31,903 INFO L226 Difference]: Without dead ends: 315 [2020-09-04 15:24:31,916 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 [2020-09-04 15:24:31,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-09-04 15:24:32,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 271. [2020-09-04 15:24:32,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-09-04 15:24:32,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 296 transitions. [2020-09-04 15:24:32,084 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 296 transitions. Word has length 153 [2020-09-04 15:24:32,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:24:32,087 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 296 transitions. [2020-09-04 15:24:32,087 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 15:24:32,087 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 296 transitions. [2020-09-04 15:24:32,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-04 15:24:32,102 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:24:32,103 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] [2020-09-04 15:24:32,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 15:24:32,104 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:24:32,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:24:32,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1765968117, now seen corresponding path program 1 times [2020-09-04 15:24:32,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:24:32,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2092750657] [2020-09-04 15:24:32,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:24:32,111 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:24:32,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:32,595 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:24:32,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:24:32,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:32,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:24:32,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:32,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:24:32,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:32,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:24:32,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:32,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:24:32,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:32,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-04 15:24:32,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:32,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-04 15:24:32,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:32,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-04 15:24:32,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:32,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:24:32,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2092750657] [2020-09-04 15:24:32,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:24:32,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 15:24:32,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825266907] [2020-09-04 15:24:32,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 15:24:32,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:24:32,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 15:24:32,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 15:24:32,679 INFO L87 Difference]: Start difference. First operand 271 states and 296 transitions. Second operand 4 states. [2020-09-04 15:24:33,268 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:24:34,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:24:34,445 INFO L93 Difference]: Finished difference Result 419 states and 474 transitions. [2020-09-04 15:24:34,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 15:24:34,445 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-04 15:24:34,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:24:34,451 INFO L225 Difference]: With dead ends: 419 [2020-09-04 15:24:34,451 INFO L226 Difference]: Without dead ends: 298 [2020-09-04 15:24:34,453 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 [2020-09-04 15:24:34,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-09-04 15:24:34,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 261. [2020-09-04 15:24:34,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-09-04 15:24:34,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 283 transitions. [2020-09-04 15:24:34,533 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 283 transitions. Word has length 154 [2020-09-04 15:24:34,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:24:34,534 INFO L479 AbstractCegarLoop]: Abstraction has 261 states and 283 transitions. [2020-09-04 15:24:34,534 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 15:24:34,534 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 283 transitions. [2020-09-04 15:24:34,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-04 15:24:34,537 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:24:34,537 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] [2020-09-04 15:24:34,538 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 15:24:34,538 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:24:34,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:24:34,538 INFO L82 PathProgramCache]: Analyzing trace with hash 308056419, now seen corresponding path program 1 times [2020-09-04 15:24:34,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:24:34,539 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1031163629] [2020-09-04 15:24:34,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:24:34,541 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:24:34,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:34,923 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:24:34,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:24:34,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:34,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:24:34,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:34,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:24:34,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:34,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:24:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:35,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:24:35,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:35,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-04 15:24:35,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:35,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-04 15:24:35,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:35,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-04 15:24:35,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:35,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-04 15:24:35,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:35,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:24:35,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1031163629] [2020-09-04 15:24:35,128 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:24:35,128 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-04 15:24:35,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942733421] [2020-09-04 15:24:35,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 15:24:35,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:24:35,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 15:24:35,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-04 15:24:35,130 INFO L87 Difference]: Start difference. First operand 261 states and 283 transitions. Second operand 10 states. [2020-09-04 15:24:35,692 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:24:36,077 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:24:36,410 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-04 15:24:36,718 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:24:37,020 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:24:37,319 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:24:38,231 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:24:40,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:24:40,932 INFO L93 Difference]: Finished difference Result 729 states and 851 transitions. [2020-09-04 15:24:40,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-04 15:24:40,933 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-09-04 15:24:40,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:24:40,939 INFO L225 Difference]: With dead ends: 729 [2020-09-04 15:24:40,939 INFO L226 Difference]: Without dead ends: 578 [2020-09-04 15:24:40,940 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-04 15:24:40,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2020-09-04 15:24:41,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 483. [2020-09-04 15:24:41,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-09-04 15:24:41,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 542 transitions. [2020-09-04 15:24:41,091 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 542 transitions. Word has length 167 [2020-09-04 15:24:41,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:24:41,092 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 542 transitions. [2020-09-04 15:24:41,092 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 15:24:41,092 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 542 transitions. [2020-09-04 15:24:41,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-04 15:24:41,096 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:24:41,096 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] [2020-09-04 15:24:41,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 15:24:41,096 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:24:41,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:24:41,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1931820316, now seen corresponding path program 1 times [2020-09-04 15:24:41,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:24:41,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [312352429] [2020-09-04 15:24:41,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:24:41,100 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:24:41,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:41,441 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:24:41,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:24:41,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:41,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:24:41,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:41,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:24:41,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:41,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:24:41,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:41,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:24:41,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:41,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-04 15:24:41,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:41,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-04 15:24:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:41,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-04 15:24:41,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:41,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-04 15:24:41,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:24:41,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:24:41,595 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [312352429] [2020-09-04 15:24:41,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:24:41,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 15:24:41,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095410956] [2020-09-04 15:24:41,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 15:24:41,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:24:41,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 15:24:41,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 15:24:41,597 INFO L87 Difference]: Start difference. First operand 483 states and 542 transitions. Second operand 9 states. [2020-09-04 15:24:42,159 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:24:44,155 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:24:44,508 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:24:44,864 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:24:45,233 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:24:45,554 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:24:45,912 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:24:46,208 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:24:47,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:24:47,228 INFO L93 Difference]: Finished difference Result 1311 states and 1585 transitions. [2020-09-04 15:24:47,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-04 15:24:47,229 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-04 15:24:47,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:24:47,237 INFO L225 Difference]: With dead ends: 1311 [2020-09-04 15:24:47,237 INFO L226 Difference]: Without dead ends: 938 [2020-09-04 15:24:47,239 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-04 15:24:47,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2020-09-04 15:24:47,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 835. [2020-09-04 15:24:47,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 835 states. [2020-09-04 15:24:47,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 961 transitions. [2020-09-04 15:24:47,568 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 961 transitions. Word has length 172 [2020-09-04 15:24:47,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:24:47,569 INFO L479 AbstractCegarLoop]: Abstraction has 835 states and 961 transitions. [2020-09-04 15:24:47,569 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 15:24:47,569 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 961 transitions. [2020-09-04 15:24:47,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-04 15:24:47,576 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:24:47,576 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] [2020-09-04 15:24:47,576 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 15:24:47,576 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:24:47,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:24:47,577 INFO L82 PathProgramCache]: Analyzing trace with hash 230448906, now seen corresponding path program 1 times [2020-09-04 15:24:47,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:24:47,577 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1205556875] [2020-09-04 15:24:47,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:24:47,581 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:24:47,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 15:24:47,670 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 15:24:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 15:24:47,761 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 15:24:47,941 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 15:24:47,941 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 15:24:47,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 15:24:47,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 03:24:47 BoogieIcfgContainer [2020-09-04 15:24:47,969 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 15:24:47,971 INFO L168 Benchmark]: Toolchain (without parser) took 20771.43 ms. Allocated memory was 140.0 MB in the beginning and 602.4 MB in the end (delta: 462.4 MB). Free memory was 101.5 MB in the beginning and 373.3 MB in the end (delta: -271.8 MB). Peak memory consumption was 190.6 MB. Max. memory is 7.1 GB. [2020-09-04 15:24:47,972 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 15:24:47,973 INFO L168 Benchmark]: CACSL2BoogieTranslator took 673.86 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 101.3 MB in the beginning and 173.9 MB in the end (delta: -72.6 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB. [2020-09-04 15:24:47,974 INFO L168 Benchmark]: Boogie Preprocessor took 100.70 ms. Allocated memory is still 204.5 MB. Free memory was 173.9 MB in the beginning and 169.3 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-09-04 15:24:47,975 INFO L168 Benchmark]: RCFGBuilder took 1269.42 ms. Allocated memory was 204.5 MB in the beginning and 235.9 MB in the end (delta: 31.5 MB). Free memory was 169.3 MB in the beginning and 174.5 MB in the end (delta: -5.2 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. [2020-09-04 15:24:47,976 INFO L168 Benchmark]: TraceAbstraction took 18722.01 ms. Allocated memory was 235.9 MB in the beginning and 602.4 MB in the end (delta: 366.5 MB). Free memory was 174.5 MB in the beginning and 373.3 MB in the end (delta: -198.8 MB). Peak memory consumption was 167.7 MB. Max. memory is 7.1 GB. [2020-09-04 15:24:47,980 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 673.86 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 101.3 MB in the beginning and 173.9 MB in the end (delta: -72.6 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.70 ms. Allocated memory is still 204.5 MB. Free memory was 173.9 MB in the beginning and 169.3 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1269.42 ms. Allocated memory was 204.5 MB in the beginning and 235.9 MB in the end (delta: 31.5 MB). Free memory was 169.3 MB in the beginning and 174.5 MB in the end (delta: -5.2 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18722.01 ms. Allocated memory was 235.9 MB in the beginning and 602.4 MB in the end (delta: 366.5 MB). Free memory was 174.5 MB in the beginning and 373.3 MB in the end (delta: -198.8 MB). Peak memory consumption was 167.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 221]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L229] int waterLevel = 1; [L230] int methaneLevelCritical = 0; [L327] int pumpRunning = 0; [L328] int systemActive = 1; [L766] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L529] int splverifierCounter ; [L530] int tmp ; [L531] int tmp___0 ; [L532] int tmp___1 ; [L533] int tmp___2 ; [L536] splverifierCounter = 0 [L538] COND TRUE 1 [L540] COND TRUE splverifierCounter < 4 [L546] tmp = __VERIFIER_nondet_int() [L548] COND TRUE \read(tmp) [L550] CALL waterRise() [L247] COND TRUE waterLevel < 2 [L248] waterLevel = waterLevel + 1 [L550] RET waterRise() [L556] tmp___0 = __VERIFIER_nondet_int() [L558] COND FALSE !(\read(tmp___0)) [L566] tmp___2 = __VERIFIER_nondet_int() [L568] COND FALSE !(\read(tmp___2)) [L574] tmp___1 = __VERIFIER_nondet_int() [L576] COND TRUE \read(tmp___1) [L578] CALL stopSystem() [L508] COND FALSE !(\read(pumpRunning)) [L515] systemActive = 0 [L578] RET stopSystem() [L585] CALL timeShift() [L334] COND FALSE !(\read(pumpRunning)) [L341] COND FALSE !(\read(systemActive)) [L349] CALL __utac_acc__Specification3_spec__1() [L184] int tmp ; [L185] int tmp___0 ; [L186] int tmp___1 ; [L190] CALL, EXPR isMethaneLevelCritical() [L268] int retValue_acc ; [L271] retValue_acc = methaneLevelCritical [L272] return (retValue_acc); [L190] RET, EXPR isMethaneLevelCritical() [L190] tmp = isMethaneLevelCritical() [L192] COND FALSE !(\read(tmp)) [L196] CALL, EXPR getWaterLevel() [L300] int retValue_acc ; [L303] retValue_acc = waterLevel [L304] return (retValue_acc); [L196] RET, EXPR getWaterLevel() [L196] tmp___0 = getWaterLevel() [L198] COND TRUE tmp___0 == 2 [L200] CALL, EXPR isPumpRunning() [L441] int retValue_acc ; [L444] retValue_acc = pumpRunning [L445] return (retValue_acc); [L200] RET, EXPR isPumpRunning() [L200] tmp___1 = isPumpRunning() [L202] COND FALSE !(\read(tmp___1)) [L206] CALL __automaton_fail() [L221] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 634 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 14.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1043 SDtfs, 1619 SDslu, 1550 SDs, 0 SdLazy, 3326 SolverSat, 592 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=835occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 4 MinimizatonAttempts, 279 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...