/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_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 12:33:44,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 12:33:44,056 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 12:33:44,069 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 12:33:44,069 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 12:33:44,070 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 12:33:44,071 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 12:33:44,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 12:33:44,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 12:33:44,075 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 12:33:44,076 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 12:33:44,077 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 12:33:44,078 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 12:33:44,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 12:33:44,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 12:33:44,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 12:33:44,081 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 12:33:44,082 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 12:33:44,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 12:33:44,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 12:33:44,087 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 12:33:44,088 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 12:33:44,089 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 12:33:44,090 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 12:33:44,092 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 12:33:44,092 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 12:33:44,092 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 12:33:44,093 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 12:33:44,093 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 12:33:44,094 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 12:33:44,095 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 12:33:44,095 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 12:33:44,096 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 12:33:44,097 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 12:33:44,098 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 12:33:44,098 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 12:33:44,098 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 12:33:44,099 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 12:33:44,099 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 12:33:44,100 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 12:33:44,100 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 12:33:44,101 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 12:33:44,110 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 12:33:44,110 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 12:33:44,111 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 12:33:44,111 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 12:33:44,111 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 12:33:44,112 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 12:33:44,112 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 12:33:44,112 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 12:33:44,112 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 12:33:44,112 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 12:33:44,113 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 12:33:44,113 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 12:33:44,113 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 12:33:44,113 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 12:33:44,113 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 12:33:44,114 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 12:33:44,114 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 12:33:44,114 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 12:33:44,114 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:33:44,114 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 12:33:44,114 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 12:33:44,115 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 12:33:44,115 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 12:33:44,394 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 12:33:44,413 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 12:33:44,416 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 12:33:44,419 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 12:33:44,420 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 12:33:44,420 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product32.cil.c [2020-07-07 12:33:44,496 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/668eb7b85/ea605c97c14d4003a6a83a201ad863d2/FLAG82bd10bcd [2020-07-07 12:33:45,059 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 12:33:45,060 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product32.cil.c [2020-07-07 12:33:45,081 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/668eb7b85/ea605c97c14d4003a6a83a201ad863d2/FLAG82bd10bcd [2020-07-07 12:33:45,315 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/668eb7b85/ea605c97c14d4003a6a83a201ad863d2 [2020-07-07 12:33:45,324 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 12:33:45,326 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 12:33:45,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 12:33:45,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 12:33:45,330 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 12:33:45,331 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:33:45" (1/1) ... [2020-07-07 12:33:45,334 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@679e04b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:45, skipping insertion in model container [2020-07-07 12:33:45,334 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:33:45" (1/1) ... [2020-07-07 12:33:45,342 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 12:33:45,397 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 12:33:45,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:33:45,853 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 12:33:45,952 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:33:46,001 INFO L208 MainTranslator]: Completed translation [2020-07-07 12:33:46,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:46 WrapperNode [2020-07-07 12:33:46,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 12:33:46,002 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 12:33:46,002 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 12:33:46,003 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 12:33:46,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:46" (1/1) ... [2020-07-07 12:33:46,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:46" (1/1) ... [2020-07-07 12:33:46,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:46" (1/1) ... [2020-07-07 12:33:46,032 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:46" (1/1) ... [2020-07-07 12:33:46,064 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:46" (1/1) ... [2020-07-07 12:33:46,074 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:46" (1/1) ... [2020-07-07 12:33:46,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:46" (1/1) ... [2020-07-07 12:33:46,095 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 12:33:46,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 12:33:46,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 12:33:46,099 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 12:33:46,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:46" (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 12:33:46,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 12:33:46,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 12:33:46,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 12:33:46,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 12:33:46,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 12:33:46,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 12:33:46,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 12:33:46,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 12:33:46,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 12:33:46,171 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 12:33:46,171 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 12:33:46,171 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 12:33:46,171 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-07-07 12:33:46,171 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 12:33:46,171 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-07-07 12:33:46,172 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 12:33:46,172 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 12:33:46,172 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 12:33:46,172 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 12:33:46,172 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 12:33:46,172 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-07 12:33:46,173 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-07 12:33:46,173 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-07 12:33:46,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 12:33:46,173 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 12:33:46,173 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 12:33:46,174 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 12:33:46,174 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 12:33:46,174 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 12:33:46,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:33:46,174 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 12:33:46,174 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 12:33:46,174 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 12:33:46,175 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 12:33:46,175 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 12:33:46,175 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 12:33:46,175 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 12:33:46,175 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 12:33:46,175 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 12:33:46,176 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 12:33:46,176 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-07 12:33:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 12:33:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 12:33:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 12:33:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 12:33:46,177 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 12:33:46,177 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 12:33:46,177 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 12:33:46,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 12:33:46,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 12:33:46,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 12:33:46,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 12:33:46,178 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 12:33:46,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 12:33:46,178 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 12:33:46,178 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 12:33:46,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 12:33:46,178 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 12:33:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 12:33:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 12:33:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 12:33:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 12:33:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 12:33:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-07 12:33:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-07 12:33:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 12:33:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 12:33:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 12:33:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 12:33:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 12:33:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 12:33:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-07 12:33:46,181 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 12:33:46,181 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 12:33:46,181 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 12:33:46,181 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 12:33:46,181 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:33:46,181 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 12:33:46,181 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 12:33:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-07 12:33:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-07-07 12:33:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 12:33:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-07-07 12:33:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 12:33:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 12:33:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 12:33:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 12:33:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 12:33:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 12:33:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 12:33:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 12:33:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 12:33:46,184 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 12:33:46,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 12:33:46,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 12:33:46,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 12:33:47,559 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 12:33:47,560 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 12:33:47,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:33:47 BoogieIcfgContainer [2020-07-07 12:33:47,567 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 12:33:47,568 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 12:33:47,568 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 12:33:47,572 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 12:33:47,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 12:33:45" (1/3) ... [2020-07-07 12:33:47,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5461919a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:33:47, skipping insertion in model container [2020-07-07 12:33:47,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:46" (2/3) ... [2020-07-07 12:33:47,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5461919a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:33:47, skipping insertion in model container [2020-07-07 12:33:47,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:33:47" (3/3) ... [2020-07-07 12:33:47,575 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product32.cil.c [2020-07-07 12:33:47,586 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 12:33:47,594 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 12:33:47,609 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 12:33:47,631 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 12:33:47,631 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 12:33:47,631 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 12:33:47,631 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 12:33:47,632 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 12:33:47,632 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 12:33:47,632 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 12:33:47,632 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 12:33:47,653 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states. [2020-07-07 12:33:47,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-07 12:33:47,674 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:47,675 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 12:33:47,675 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:47,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:47,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1415492803, now seen corresponding path program 1 times [2020-07-07 12:33:47,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:47,691 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [184750612] [2020-07-07 12:33:47,691 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:47,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:48,446 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:48,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:48,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:48,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:48,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:48,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:48,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:48,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:48,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:48,670 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 12:33:48,670 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:48,673 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [184750612] [2020-07-07 12:33:48,674 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:48,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 12:33:48,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367084915] [2020-07-07 12:33:48,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 12:33:48,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:48,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 12:33:48,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:33:48,697 INFO L87 Difference]: Start difference. First operand 326 states. Second operand 3 states. [2020-07-07 12:33:50,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:50,131 INFO L93 Difference]: Finished difference Result 500 states and 599 transitions. [2020-07-07 12:33:50,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 12:33:50,134 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-07-07 12:33:50,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:50,152 INFO L225 Difference]: With dead ends: 500 [2020-07-07 12:33:50,152 INFO L226 Difference]: Without dead ends: 309 [2020-07-07 12:33:50,157 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:33:50,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-07-07 12:33:50,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 265. [2020-07-07 12:33:50,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-07-07 12:33:50,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 290 transitions. [2020-07-07 12:33:50,305 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 290 transitions. Word has length 153 [2020-07-07 12:33:50,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:50,308 INFO L479 AbstractCegarLoop]: Abstraction has 265 states and 290 transitions. [2020-07-07 12:33:50,308 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 12:33:50,309 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 290 transitions. [2020-07-07 12:33:50,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-07 12:33:50,320 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:50,320 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 12:33:50,321 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 12:33:50,321 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:50,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:50,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1710545638, now seen corresponding path program 1 times [2020-07-07 12:33:50,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:50,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [616368470] [2020-07-07 12:33:50,322 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:50,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:50,739 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:50,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:50,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:50,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:50,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:50,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:50,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:50,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:50,864 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 12:33:50,864 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:50,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [616368470] [2020-07-07 12:33:50,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:50,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 12:33:50,865 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113569534] [2020-07-07 12:33:50,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 12:33:50,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:50,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 12:33:50,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 12:33:50,868 INFO L87 Difference]: Start difference. First operand 265 states and 290 transitions. Second operand 4 states. [2020-07-07 12:33:51,434 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:33:52,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:52,371 INFO L93 Difference]: Finished difference Result 407 states and 462 transitions. [2020-07-07 12:33:52,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 12:33:52,372 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-07-07 12:33:52,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:52,376 INFO L225 Difference]: With dead ends: 407 [2020-07-07 12:33:52,377 INFO L226 Difference]: Without dead ends: 292 [2020-07-07 12:33:52,379 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 12:33:52,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2020-07-07 12:33:52,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 255. [2020-07-07 12:33:52,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-07-07 12:33:52,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 277 transitions. [2020-07-07 12:33:52,470 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 277 transitions. Word has length 154 [2020-07-07 12:33:52,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:52,471 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 277 transitions. [2020-07-07 12:33:52,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 12:33:52,472 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 277 transitions. [2020-07-07 12:33:52,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-07-07 12:33:52,474 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:52,475 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 12:33:52,475 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 12:33:52,475 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:52,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:52,476 INFO L82 PathProgramCache]: Analyzing trace with hash -2101830129, now seen corresponding path program 1 times [2020-07-07 12:33:52,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:52,476 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1665555346] [2020-07-07 12:33:52,477 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:52,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:52,782 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:52,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:52,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:52,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:52,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:52,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:52,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:52,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:52,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:52,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:52,914 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 12:33:52,915 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:52,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1665555346] [2020-07-07 12:33:52,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:52,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-07 12:33:52,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950564076] [2020-07-07 12:33:52,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-07 12:33:52,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:52,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-07 12:33:52,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-07 12:33:52,917 INFO L87 Difference]: Start difference. First operand 255 states and 277 transitions. Second operand 10 states. [2020-07-07 12:33:53,534 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:33:54,036 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:33:54,325 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-07 12:33:54,557 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:54,795 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:33:55,049 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:55,951 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:33:58,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:58,410 INFO L93 Difference]: Finished difference Result 711 states and 833 transitions. [2020-07-07 12:33:58,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-07 12:33:58,410 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-07-07 12:33:58,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:58,416 INFO L225 Difference]: With dead ends: 711 [2020-07-07 12:33:58,416 INFO L226 Difference]: Without dead ends: 566 [2020-07-07 12:33:58,418 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-07-07 12:33:58,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2020-07-07 12:33:58,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 471. [2020-07-07 12:33:58,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 471 states. [2020-07-07 12:33:58,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 530 transitions. [2020-07-07 12:33:58,567 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 530 transitions. Word has length 167 [2020-07-07 12:33:58,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:58,568 INFO L479 AbstractCegarLoop]: Abstraction has 471 states and 530 transitions. [2020-07-07 12:33:58,568 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-07 12:33:58,568 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 530 transitions. [2020-07-07 12:33:58,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-07-07 12:33:58,571 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:58,572 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 12:33:58,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 12:33:58,572 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:58,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:58,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1375229366, now seen corresponding path program 1 times [2020-07-07 12:33:58,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:58,573 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [584626877] [2020-07-07 12:33:58,573 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:58,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:58,853 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:58,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:58,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:58,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:58,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:58,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:58,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:58,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:58,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:58,987 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 12:33:58,987 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:58,987 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [584626877] [2020-07-07 12:33:58,988 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:58,988 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:33:58,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69470594] [2020-07-07 12:33:58,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:33:58,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:58,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:33:58,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:33:58,990 INFO L87 Difference]: Start difference. First operand 471 states and 530 transitions. Second operand 9 states. [2020-07-07 12:33:59,446 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:34:01,278 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:01,530 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:34:01,823 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:02,120 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:34:02,350 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:34:02,577 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:02,826 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:03,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:34:03,627 INFO L93 Difference]: Finished difference Result 1279 states and 1543 transitions. [2020-07-07 12:34:03,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-07 12:34:03,628 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-07-07 12:34:03,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:34:03,634 INFO L225 Difference]: With dead ends: 1279 [2020-07-07 12:34:03,634 INFO L226 Difference]: Without dead ends: 918 [2020-07-07 12:34:03,636 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-07-07 12:34:03,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states. [2020-07-07 12:34:03,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 815. [2020-07-07 12:34:03,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 815 states. [2020-07-07 12:34:03,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 943 transitions. [2020-07-07 12:34:03,897 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 943 transitions. Word has length 172 [2020-07-07 12:34:03,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:34:03,898 INFO L479 AbstractCegarLoop]: Abstraction has 815 states and 943 transitions. [2020-07-07 12:34:03,898 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:34:03,899 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 943 transitions. [2020-07-07 12:34:03,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-07 12:34:03,903 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:34:03,904 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 12:34:03,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 12:34:03,904 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:34:03,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:34:03,905 INFO L82 PathProgramCache]: Analyzing trace with hash 334407722, now seen corresponding path program 1 times [2020-07-07 12:34:03,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:34:03,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1081029781] [2020-07-07 12:34:03,906 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:34:03,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:04,227 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:34:04,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:04,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:04,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:04,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:04,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:04,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:04,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:04,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:04,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:04,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:04,372 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 12:34:04,372 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:34:04,373 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1081029781] [2020-07-07 12:34:04,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:34:04,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 12:34:04,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702268017] [2020-07-07 12:34:04,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 12:34:04,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:34:04,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 12:34:04,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-07 12:34:04,375 INFO L87 Difference]: Start difference. First operand 815 states and 943 transitions. Second operand 6 states. [2020-07-07 12:34:04,846 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:34:05,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:34:05,886 INFO L93 Difference]: Finished difference Result 1352 states and 1625 transitions. [2020-07-07 12:34:05,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-07 12:34:05,887 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 177 [2020-07-07 12:34:05,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:34:05,894 INFO L225 Difference]: With dead ends: 1352 [2020-07-07 12:34:05,895 INFO L226 Difference]: Without dead ends: 647 [2020-07-07 12:34:05,897 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-07-07 12:34:05,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2020-07-07 12:34:06,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 570. [2020-07-07 12:34:06,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 570 states. [2020-07-07 12:34:06,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 621 transitions. [2020-07-07 12:34:06,065 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 621 transitions. Word has length 177 [2020-07-07 12:34:06,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:34:06,065 INFO L479 AbstractCegarLoop]: Abstraction has 570 states and 621 transitions. [2020-07-07 12:34:06,066 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 12:34:06,066 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 621 transitions. [2020-07-07 12:34:06,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-07 12:34:06,069 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:34:06,070 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 12:34:06,070 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 12:34:06,070 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:34:06,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:34:06,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1825655940, now seen corresponding path program 1 times [2020-07-07 12:34:06,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:34:06,071 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [164871125] [2020-07-07 12:34:06,071 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:34:06,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:34:06,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:34:06,379 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:34:06,380 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 12:34:06,380 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 12:34:06,381 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 12:34:06,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 12:34:06 BoogieIcfgContainer [2020-07-07 12:34:06,404 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 12:34:06,407 INFO L168 Benchmark]: Toolchain (without parser) took 21081.04 ms. Allocated memory was 135.8 MB in the beginning and 685.2 MB in the end (delta: 549.5 MB). Free memory was 100.0 MB in the beginning and 375.6 MB in the end (delta: -275.7 MB). Peak memory consumption was 273.8 MB. Max. memory is 7.1 GB. [2020-07-07 12:34:06,407 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 135.8 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-07 12:34:06,408 INFO L168 Benchmark]: CACSL2BoogieTranslator took 675.40 ms. Allocated memory was 135.8 MB in the beginning and 200.8 MB in the end (delta: 65.0 MB). Free memory was 99.8 MB in the beginning and 169.8 MB in the end (delta: -70.0 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. [2020-07-07 12:34:06,409 INFO L168 Benchmark]: Boogie Preprocessor took 94.21 ms. Allocated memory is still 200.8 MB. Free memory was 169.8 MB in the beginning and 165.5 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-07-07 12:34:06,410 INFO L168 Benchmark]: RCFGBuilder took 1470.41 ms. Allocated memory was 200.8 MB in the beginning and 230.2 MB in the end (delta: 29.4 MB). Free memory was 165.5 MB in the beginning and 173.1 MB in the end (delta: -7.6 MB). Peak memory consumption was 88.3 MB. Max. memory is 7.1 GB. [2020-07-07 12:34:06,411 INFO L168 Benchmark]: TraceAbstraction took 18836.31 ms. Allocated memory was 230.2 MB in the beginning and 685.2 MB in the end (delta: 455.1 MB). Free memory was 173.1 MB in the beginning and 375.6 MB in the end (delta: -202.6 MB). Peak memory consumption was 252.5 MB. Max. memory is 7.1 GB. [2020-07-07 12:34:06,415 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 135.8 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 675.40 ms. Allocated memory was 135.8 MB in the beginning and 200.8 MB in the end (delta: 65.0 MB). Free memory was 99.8 MB in the beginning and 169.8 MB in the end (delta: -70.0 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 94.21 ms. Allocated memory is still 200.8 MB. Free memory was 169.8 MB in the beginning and 165.5 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1470.41 ms. Allocated memory was 200.8 MB in the beginning and 230.2 MB in the end (delta: 29.4 MB). Free memory was 165.5 MB in the beginning and 173.1 MB in the end (delta: -7.6 MB). Peak memory consumption was 88.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18836.31 ms. Allocated memory was 230.2 MB in the beginning and 685.2 MB in the end (delta: 455.1 MB). Free memory was 173.1 MB in the beginning and 375.6 MB in the end (delta: -202.6 MB). Peak memory consumption was 252.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 712]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L489] int pumpRunning = 0; [L490] int systemActive = 1; [L717] int cleanupTimeShifts = 4; [L886] int waterLevel = 1; [L887] int methaneLevelCritical = 0; [L793] int retValue_acc ; [L794] int tmp ; [L798] FCALL select_helpers() [L799] FCALL select_features() [L800] CALL, EXPR valid_product() [L877] int retValue_acc ; [L880] retValue_acc = 1 [L881] return (retValue_acc); [L800] RET, EXPR valid_product() [L800] tmp = valid_product() [L802] COND TRUE \read(tmp) [L804] FCALL setup() [L805] CALL runTest() [L784] CALL test() [L413] int splverifierCounter ; [L414] int tmp ; [L415] int tmp___0 ; [L416] int tmp___1 ; [L417] int tmp___2 ; [L420] splverifierCounter = 0 [L422] COND TRUE 1 [L424] COND TRUE splverifierCounter < 4 [L430] tmp = __VERIFIER_nondet_int() [L432] COND TRUE \read(tmp) [L434] CALL waterRise() [L904] COND TRUE waterLevel < 2 [L905] waterLevel = waterLevel + 1 [L434] RET waterRise() [L440] tmp___0 = __VERIFIER_nondet_int() [L442] COND FALSE !(\read(tmp___0)) [L450] tmp___2 = __VERIFIER_nondet_int() [L452] COND FALSE !(\read(tmp___2)) [L458] tmp___1 = __VERIFIER_nondet_int() [L460] COND TRUE \read(tmp___1) [L462] CALL stopSystem() [L688] COND FALSE !(\read(pumpRunning)) [L695] systemActive = 0 [L462] RET stopSystem() [L469] CALL timeShift() [L497] COND FALSE !(\read(pumpRunning)) [L504] COND FALSE !(\read(systemActive)) [L512] CALL __utac_acc__Specification3_spec__1() [L818] int tmp ; [L819] int tmp___0 ; [L820] int tmp___1 ; [L824] CALL, EXPR isMethaneLevelCritical() [L925] int retValue_acc ; [L928] retValue_acc = methaneLevelCritical [L929] return (retValue_acc); [L824] RET, EXPR isMethaneLevelCritical() [L824] tmp = isMethaneLevelCritical() [L826] COND FALSE !(\read(tmp)) [L830] CALL, EXPR getWaterLevel() [L957] int retValue_acc ; [L960] retValue_acc = waterLevel [L961] return (retValue_acc); [L830] RET, EXPR getWaterLevel() [L830] tmp___0 = getWaterLevel() [L832] COND TRUE tmp___0 == 2 [L834] CALL, EXPR isPumpRunning() [L621] int retValue_acc ; [L624] retValue_acc = pumpRunning [L625] return (retValue_acc); [L834] RET, EXPR isPumpRunning() [L834] tmp___1 = isPumpRunning() [L836] COND FALSE !(\read(tmp___1)) [L840] CALL __automaton_fail() [L712] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 640 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 14.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1213 SDtfs, 1953 SDslu, 1572 SDs, 0 SdLazy, 3473 SolverSat, 700 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=815occurred 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, 5 MinimizatonAttempts, 356 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...