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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:50:29,668 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:50:29,671 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:50:29,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:50:29,689 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:50:29,691 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:50:29,693 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:50:29,703 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:50:29,706 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:50:29,707 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:50:29,708 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:50:29,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:50:29,712 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:50:29,713 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:50:29,714 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:50:29,715 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:50:29,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:50:29,716 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:50:29,718 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:50:29,720 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:50:29,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:50:29,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:50:29,723 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:50:29,723 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:50:29,725 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:50:29,725 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:50:29,726 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:50:29,726 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:50:29,727 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:50:29,728 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:50:29,728 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:50:29,729 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:50:29,729 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:50:29,730 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:50:29,731 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:50:29,731 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:50:29,732 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:50:29,732 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:50:29,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:50:29,733 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:50:29,734 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:50:29,735 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 02:50:29,749 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:50:29,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:50:29,750 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:50:29,750 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:50:29,750 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:50:29,751 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:50:29,751 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:50:29,751 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:50:29,751 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:50:29,751 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:50:29,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:50:29,752 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:50:29,752 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:50:29,753 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:50:29,753 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:50:29,753 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:50:29,753 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:50:29,753 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:50:29,754 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:50:29,754 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:50:29,754 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:50:29,754 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:50:29,754 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:50:29,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:50:29,755 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:50:29,755 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:50:29,755 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:50:29,755 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:50:29,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:50:29,756 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:50:29,788 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:50:29,800 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:50:29,803 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:50:29,804 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:50:29,804 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:50:29,805 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product58.cil.c [2019-09-10 02:50:29,864 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55d079ee0/222ed23a06144ccf809671e918516911/FLAGfd3971c2c [2019-09-10 02:50:30,476 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:50:30,478 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product58.cil.c [2019-09-10 02:50:30,498 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55d079ee0/222ed23a06144ccf809671e918516911/FLAGfd3971c2c [2019-09-10 02:50:30,677 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55d079ee0/222ed23a06144ccf809671e918516911 [2019-09-10 02:50:30,685 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:50:30,686 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:50:30,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:50:30,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:50:30,690 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:50:30,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:50:30" (1/1) ... [2019-09-10 02:50:30,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18312eb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:30, skipping insertion in model container [2019-09-10 02:50:30,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:50:30" (1/1) ... [2019-09-10 02:50:30,701 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:50:30,752 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:50:31,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:50:31,214 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:50:31,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:50:31,347 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:50:31,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:31 WrapperNode [2019-09-10 02:50:31,348 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:50:31,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:50:31,348 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:50:31,348 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:50:31,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:31" (1/1) ... [2019-09-10 02:50:31,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:31" (1/1) ... [2019-09-10 02:50:31,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:31" (1/1) ... [2019-09-10 02:50:31,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:31" (1/1) ... [2019-09-10 02:50:31,408 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:31" (1/1) ... [2019-09-10 02:50:31,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:31" (1/1) ... [2019-09-10 02:50:31,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:31" (1/1) ... [2019-09-10 02:50:31,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:50:31,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:50:31,444 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:50:31,444 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:50:31,445 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:50:31,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:50:31,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:50:31,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:50:31,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:50:31,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:50:31,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:50:31,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:50:31,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:50:31,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:50:31,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-09-10 02:50:31,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:50:31,512 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:50:31,512 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:50:31,513 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:50:31,513 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:50:31,514 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:50:31,514 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:50:31,515 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-10 02:50:31,515 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-10 02:50:31,515 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:50:31,515 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:50:31,515 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:50:31,516 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:50:31,516 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:50:31,516 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:50:31,517 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:50:31,517 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:50:31,517 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:50:31,518 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:50:31,518 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-10 02:50:31,518 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-10 02:50:31,518 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:50:31,518 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-10 02:50:31,518 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:50:31,519 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:50:31,519 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:50:31,519 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:50:31,519 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:50:31,519 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-10 02:50:31,519 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-10 02:50:31,519 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-10 02:50:31,520 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:50:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:50:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:50:31,520 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:50:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:50:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:50:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:50:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:50:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:50:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:50:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:50:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:50:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:50:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:50:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:50:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:50:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:50:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:50:31,523 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:50:31,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:50:31,523 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:50:31,523 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:50:31,523 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:50:31,524 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:50:31,524 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-09-10 02:50:31,524 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:50:31,524 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:50:31,524 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:50:31,525 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:50:31,525 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:50:31,525 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-10 02:50:31,525 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-10 02:50:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:50:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:50:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:50:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:50:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:50:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:50:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:50:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:50:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:50:31,528 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:50:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:50:31,529 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:50:31,530 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:50:31,531 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:50:31,531 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-10 02:50:31,531 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:50:31,531 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-10 02:50:31,532 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-10 02:50:31,532 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-10 02:50:31,532 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-10 02:50:31,532 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-10 02:50:31,532 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:50:31,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:50:31,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:50:31,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:50:32,691 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:50:32,692 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:50:32,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:50:32 BoogieIcfgContainer [2019-09-10 02:50:32,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:50:32,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:50:32,694 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:50:32,698 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:50:32,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:50:30" (1/3) ... [2019-09-10 02:50:32,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e7e98fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:50:32, skipping insertion in model container [2019-09-10 02:50:32,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:31" (2/3) ... [2019-09-10 02:50:32,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e7e98fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:50:32, skipping insertion in model container [2019-09-10 02:50:32,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:50:32" (3/3) ... [2019-09-10 02:50:32,701 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product58.cil.c [2019-09-10 02:50:32,712 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:50:32,720 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:50:32,737 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:50:32,764 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:50:32,764 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:50:32,765 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:50:32,765 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:50:32,767 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:50:32,767 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:50:32,767 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:50:32,768 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:50:32,797 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states. [2019-09-10 02:50:32,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-10 02:50:32,816 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:32,817 INFO L399 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] [2019-09-10 02:50:32,820 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:32,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:32,827 INFO L82 PathProgramCache]: Analyzing trace with hash -298144076, now seen corresponding path program 1 times [2019-09-10 02:50:32,830 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:32,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:32,883 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:32,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:32,883 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:33,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:33,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:50:33,179 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:33,179 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:50:33,180 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:33,186 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:50:33,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:50:33,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:50:33,205 INFO L87 Difference]: Start difference. First operand 190 states. Second operand 2 states. [2019-09-10 02:50:33,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:33,257 INFO L93 Difference]: Finished difference Result 158 states and 182 transitions. [2019-09-10 02:50:33,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:50:33,259 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-10 02:50:33,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:33,274 INFO L225 Difference]: With dead ends: 158 [2019-09-10 02:50:33,275 INFO L226 Difference]: Without dead ends: 147 [2019-09-10 02:50:33,276 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:50:33,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2019-09-10 02:50:33,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2019-09-10 02:50:33,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2019-09-10 02:50:33,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 170 transitions. [2019-09-10 02:50:33,328 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 170 transitions. Word has length 46 [2019-09-10 02:50:33,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:33,328 INFO L475 AbstractCegarLoop]: Abstraction has 147 states and 170 transitions. [2019-09-10 02:50:33,328 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:50:33,329 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 170 transitions. [2019-09-10 02:50:33,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-10 02:50:33,332 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:33,332 INFO L399 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] [2019-09-10 02:50:33,332 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:33,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:33,333 INFO L82 PathProgramCache]: Analyzing trace with hash -491113124, now seen corresponding path program 1 times [2019-09-10 02:50:33,333 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:33,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:33,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:33,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:33,335 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:33,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:33,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:50:33,458 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:33,458 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:50:33,458 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:33,460 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:50:33,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:50:33,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:50:33,461 INFO L87 Difference]: Start difference. First operand 147 states and 170 transitions. Second operand 3 states. [2019-09-10 02:50:33,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:33,482 INFO L93 Difference]: Finished difference Result 138 states and 158 transitions. [2019-09-10 02:50:33,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:50:33,483 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-10 02:50:33,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:33,488 INFO L225 Difference]: With dead ends: 138 [2019-09-10 02:50:33,488 INFO L226 Difference]: Without dead ends: 138 [2019-09-10 02:50:33,491 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:50:33,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2019-09-10 02:50:33,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2019-09-10 02:50:33,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2019-09-10 02:50:33,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 158 transitions. [2019-09-10 02:50:33,505 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 158 transitions. Word has length 47 [2019-09-10 02:50:33,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:33,506 INFO L475 AbstractCegarLoop]: Abstraction has 138 states and 158 transitions. [2019-09-10 02:50:33,506 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:50:33,506 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 158 transitions. [2019-09-10 02:50:33,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-10 02:50:33,508 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:33,508 INFO L399 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] [2019-09-10 02:50:33,509 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:33,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:33,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1388977157, now seen corresponding path program 1 times [2019-09-10 02:50:33,509 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:33,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:33,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:33,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:33,511 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:33,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:33,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:50:33,673 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:33,673 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:50:33,673 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:33,674 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:50:33,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:50:33,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:50:33,675 INFO L87 Difference]: Start difference. First operand 138 states and 158 transitions. Second operand 7 states. [2019-09-10 02:50:34,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:34,051 INFO L93 Difference]: Finished difference Result 138 states and 157 transitions. [2019-09-10 02:50:34,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:50:34,052 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-10 02:50:34,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:34,054 INFO L225 Difference]: With dead ends: 138 [2019-09-10 02:50:34,054 INFO L226 Difference]: Without dead ends: 138 [2019-09-10 02:50:34,056 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-10 02:50:34,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2019-09-10 02:50:34,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2019-09-10 02:50:34,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2019-09-10 02:50:34,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 157 transitions. [2019-09-10 02:50:34,078 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 157 transitions. Word has length 52 [2019-09-10 02:50:34,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:34,079 INFO L475 AbstractCegarLoop]: Abstraction has 138 states and 157 transitions. [2019-09-10 02:50:34,079 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:50:34,079 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 157 transitions. [2019-09-10 02:50:34,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-10 02:50:34,084 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:34,084 INFO L399 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] [2019-09-10 02:50:34,086 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:34,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:34,087 INFO L82 PathProgramCache]: Analyzing trace with hash 105794737, now seen corresponding path program 1 times [2019-09-10 02:50:34,087 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:34,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:34,088 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:34,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:34,089 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:34,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:34,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:50:34,274 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:34,274 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:50:34,274 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:34,275 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:50:34,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:50:34,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:50:34,276 INFO L87 Difference]: Start difference. First operand 138 states and 157 transitions. Second operand 5 states. [2019-09-10 02:50:34,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:34,765 INFO L93 Difference]: Finished difference Result 239 states and 274 transitions. [2019-09-10 02:50:34,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:50:34,766 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2019-09-10 02:50:34,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:34,769 INFO L225 Difference]: With dead ends: 239 [2019-09-10 02:50:34,769 INFO L226 Difference]: Without dead ends: 239 [2019-09-10 02:50:34,770 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:50:34,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2019-09-10 02:50:34,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 220. [2019-09-10 02:50:34,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2019-09-10 02:50:34,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 248 transitions. [2019-09-10 02:50:34,788 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 248 transitions. Word has length 65 [2019-09-10 02:50:34,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:34,788 INFO L475 AbstractCegarLoop]: Abstraction has 220 states and 248 transitions. [2019-09-10 02:50:34,789 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:50:34,789 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 248 transitions. [2019-09-10 02:50:34,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-09-10 02:50:34,791 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:34,791 INFO L399 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] [2019-09-10 02:50:34,792 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:34,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:34,792 INFO L82 PathProgramCache]: Analyzing trace with hash -830596407, now seen corresponding path program 1 times [2019-09-10 02:50:34,792 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:34,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:34,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:34,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:34,794 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:34,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:34,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:50:34,906 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:34,906 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 02:50:34,907 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:34,907 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:50:34,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:50:34,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:50:34,909 INFO L87 Difference]: Start difference. First operand 220 states and 248 transitions. Second operand 8 states. [2019-09-10 02:50:34,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:34,941 INFO L93 Difference]: Finished difference Result 227 states and 255 transitions. [2019-09-10 02:50:34,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:50:34,941 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2019-09-10 02:50:34,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:34,944 INFO L225 Difference]: With dead ends: 227 [2019-09-10 02:50:34,944 INFO L226 Difference]: Without dead ends: 227 [2019-09-10 02:50:34,945 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:50:34,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2019-09-10 02:50:34,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 224. [2019-09-10 02:50:34,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2019-09-10 02:50:34,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 252 transitions. [2019-09-10 02:50:34,957 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 252 transitions. Word has length 79 [2019-09-10 02:50:34,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:34,958 INFO L475 AbstractCegarLoop]: Abstraction has 224 states and 252 transitions. [2019-09-10 02:50:34,958 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:50:34,958 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 252 transitions. [2019-09-10 02:50:34,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-09-10 02:50:34,960 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:34,960 INFO L399 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] [2019-09-10 02:50:34,960 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:34,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:34,960 INFO L82 PathProgramCache]: Analyzing trace with hash 2078167495, now seen corresponding path program 1 times [2019-09-10 02:50:34,961 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:34,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:34,962 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:34,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:34,962 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:34,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:35,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:50:35,064 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:35,064 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-10 02:50:35,064 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:35,065 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 02:50:35,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 02:50:35,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-10 02:50:35,066 INFO L87 Difference]: Start difference. First operand 224 states and 252 transitions. Second operand 10 states. [2019-09-10 02:50:35,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:35,668 INFO L93 Difference]: Finished difference Result 526 states and 614 transitions. [2019-09-10 02:50:35,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-10 02:50:35,668 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 79 [2019-09-10 02:50:35,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:35,673 INFO L225 Difference]: With dead ends: 526 [2019-09-10 02:50:35,673 INFO L226 Difference]: Without dead ends: 526 [2019-09-10 02:50:35,673 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-09-10 02:50:35,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2019-09-10 02:50:35,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 516. [2019-09-10 02:50:35,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 516 states. [2019-09-10 02:50:35,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 597 transitions. [2019-09-10 02:50:35,699 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 597 transitions. Word has length 79 [2019-09-10 02:50:35,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:35,700 INFO L475 AbstractCegarLoop]: Abstraction has 516 states and 597 transitions. [2019-09-10 02:50:35,700 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 02:50:35,700 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 597 transitions. [2019-09-10 02:50:35,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-09-10 02:50:35,703 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:35,703 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:50:35,704 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:35,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:35,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1201141545, now seen corresponding path program 1 times [2019-09-10 02:50:35,704 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:35,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:35,705 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:35,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:35,705 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:35,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:35,786 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 18 proven. 9 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-09-10 02:50:35,786 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:50:35,786 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:50:35,787 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 155 with the following transitions: [2019-09-10 02:50:35,789 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [54], [57], [59], [62], [68], [70], [71], [75], [78], [113], [129], [132], [134], [135], [150], [153], [154], [155], [164], [168], [172], [175], [180], [186], [188], [194], [197], [207], [208], [220], [222], [227], [230], [231], [232], [233], [235], [238], [242], [243], [244], [245], [251], [255], [261], [297], [300], [302], [305], [308], [315], [318], [322], [323], [326], [327], [328], [351], [353], [354], [421], [422], [432], [440], [441], [442], [443], [444], [446], [447], [448], [449], [450], [451], [452], [453], [454], [494], [495], [496], [497], [502], [503], [506], [507], [508], [509], [510], [511], [514], [515], [516], [517], [522], [523], [524], [525], [526], [527], [532], [534], [535], [540], [541], [542] [2019-09-10 02:50:35,828 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:50:35,828 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:50:35,893 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:50:35,894 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 68 root evaluator evaluations with a maximum evaluation depth of 0. Performed 68 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 126 variables. [2019-09-10 02:50:35,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:35,898 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:50:35,950 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:50:35,950 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:50:35,955 INFO L420 sIntCurrentIteration]: We unified 153 AI predicates to 153 [2019-09-10 02:50:35,955 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:50:35,956 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:50:35,956 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 6 [2019-09-10 02:50:35,956 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:35,957 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:50:35,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:50:35,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:50:35,957 INFO L87 Difference]: Start difference. First operand 516 states and 597 transitions. Second operand 2 states. [2019-09-10 02:50:35,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:35,958 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:50:35,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:50:35,958 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 154 [2019-09-10 02:50:35,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:35,959 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:50:35,959 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:50:35,959 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:50:35,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:50:35,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:50:35,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:50:35,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:50:35,960 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 154 [2019-09-10 02:50:35,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:35,960 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:50:35,960 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:50:35,961 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:50:35,961 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:50:35,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:50:35 BoogieIcfgContainer [2019-09-10 02:50:35,966 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:50:35,968 INFO L168 Benchmark]: Toolchain (without parser) took 5281.32 ms. Allocated memory was 134.7 MB in the beginning and 254.3 MB in the end (delta: 119.5 MB). Free memory was 89.4 MB in the beginning and 93.7 MB in the end (delta: -4.3 MB). Peak memory consumption was 115.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:35,969 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 134.7 MB. Free memory was 108.8 MB in the beginning and 108.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:50:35,971 INFO L168 Benchmark]: CACSL2BoogieTranslator took 661.04 ms. Allocated memory was 134.7 MB in the beginning and 202.4 MB in the end (delta: 67.6 MB). Free memory was 89.2 MB in the beginning and 164.0 MB in the end (delta: -74.7 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:35,971 INFO L168 Benchmark]: Boogie Preprocessor took 95.11 ms. Allocated memory is still 202.4 MB. Free memory was 164.0 MB in the beginning and 159.7 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:35,972 INFO L168 Benchmark]: RCFGBuilder took 1249.74 ms. Allocated memory was 202.4 MB in the beginning and 230.2 MB in the end (delta: 27.8 MB). Free memory was 159.7 MB in the beginning and 190.0 MB in the end (delta: -30.3 MB). Peak memory consumption was 82.9 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:35,974 INFO L168 Benchmark]: TraceAbstraction took 3271.65 ms. Allocated memory was 230.2 MB in the beginning and 254.3 MB in the end (delta: 24.1 MB). Free memory was 190.0 MB in the beginning and 93.7 MB in the end (delta: 96.3 MB). Peak memory consumption was 120.4 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:35,978 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 134.7 MB. Free memory was 108.8 MB in the beginning and 108.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 661.04 ms. Allocated memory was 134.7 MB in the beginning and 202.4 MB in the end (delta: 67.6 MB). Free memory was 89.2 MB in the beginning and 164.0 MB in the end (delta: -74.7 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 95.11 ms. Allocated memory is still 202.4 MB. Free memory was 164.0 MB in the beginning and 159.7 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1249.74 ms. Allocated memory was 202.4 MB in the beginning and 230.2 MB in the end (delta: 27.8 MB). Free memory was 159.7 MB in the beginning and 190.0 MB in the end (delta: -30.3 MB). Peak memory consumption was 82.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3271.65 ms. Allocated memory was 230.2 MB in the beginning and 254.3 MB in the end (delta: 24.1 MB). Free memory was 190.0 MB in the beginning and 93.7 MB in the end (delta: 96.3 MB). Peak memory consumption was 120.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 439]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 246 locations, 1 error locations. SAFE Result, 3.2s OverallTime, 7 OverallIterations, 2 TraceHistogramMax, 1.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1014 SDtfs, 684 SDslu, 2770 SDs, 0 SdLazy, 793 SolverSat, 217 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 220 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=516occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.8758169934640523 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 32 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 522 NumberOfCodeBlocks, 522 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 515 ConstructedInterpolants, 0 QuantifiedInterpolants, 65051 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 39/48 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...