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_spec5_product02.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:31:06,935 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:31:06,938 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:31:06,957 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:31:06,957 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:31:06,959 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:31:06,961 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:31:06,970 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:31:06,974 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:31:06,978 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:31:06,980 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:31:06,982 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:31:06,982 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:31:06,983 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:31:06,984 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:31:06,987 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:31:06,988 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:31:06,989 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:31:06,992 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:31:06,997 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:31:06,998 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:31:06,999 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:31:07,000 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:31:07,001 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:31:07,003 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:31:07,003 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:31:07,003 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:31:07,004 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:31:07,004 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:31:07,005 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:31:07,005 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:31:07,006 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:31:07,007 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:31:07,008 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:31:07,008 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:31:07,009 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:31:07,009 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:31:07,009 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:31:07,010 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:31:07,010 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:31:07,011 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:31:07,012 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 [2019-09-20 13:31:07,026 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:31:07,026 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:31:07,027 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:31:07,027 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:31:07,027 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:31:07,028 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:31:07,028 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:31:07,028 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:31:07,028 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:31:07,028 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:31:07,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:31:07,029 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:31:07,029 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:31:07,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:31:07,030 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:31:07,030 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:31:07,030 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:31:07,030 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:31:07,031 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:31:07,031 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:31:07,031 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:31:07,031 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:31:07,031 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:31:07,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:31:07,032 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:31:07,032 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:31:07,032 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:31:07,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:31:07,033 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:31:07,033 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:31:07,059 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:31:07,072 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:31:07,075 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:31:07,076 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:31:07,077 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:31:07,077 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product02.cil.c [2019-09-20 13:31:07,134 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f25b82a95/7e6da10c08804fdabbb562486f901963/FLAG57cb329c1 [2019-09-20 13:31:07,579 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:31:07,580 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product02.cil.c [2019-09-20 13:31:07,597 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f25b82a95/7e6da10c08804fdabbb562486f901963/FLAG57cb329c1 [2019-09-20 13:31:07,941 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f25b82a95/7e6da10c08804fdabbb562486f901963 [2019-09-20 13:31:07,949 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:31:07,950 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:31:07,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:07,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:31:07,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:31:07,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:07" (1/1) ... [2019-09-20 13:31:07,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b9c1821 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:07, skipping insertion in model container [2019-09-20 13:31:07,958 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:07" (1/1) ... [2019-09-20 13:31:07,966 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:31:08,005 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:31:08,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:08,450 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:31:08,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:08,564 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:31:08,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:08 WrapperNode [2019-09-20 13:31:08,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:08,565 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:31:08,565 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:31:08,565 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:31:08,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:08" (1/1) ... [2019-09-20 13:31:08,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:08" (1/1) ... [2019-09-20 13:31:08,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:08" (1/1) ... [2019-09-20 13:31:08,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:08" (1/1) ... [2019-09-20 13:31:08,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:08" (1/1) ... [2019-09-20 13:31:08,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:08" (1/1) ... [2019-09-20 13:31:08,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:08" (1/1) ... [2019-09-20 13:31:08,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:31:08,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:31:08,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:31:08,647 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:31:08,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:08" (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 [2019-09-20 13:31:08,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:31:08,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:31:08,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:08,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:08,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:08,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:08,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:31:08,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:31:08,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:31:08,711 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:31:08,711 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:31:08,712 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:31:08,712 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:31:08,713 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:31:08,713 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:31:08,714 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:31:08,714 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:31:08,714 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:31:08,714 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:31:08,714 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:31:08,715 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:31:08,715 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:31:08,715 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:31:08,715 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:31:08,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:31:08,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-09-20 13:31:08,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-09-20 13:31:08,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-09-20 13:31:08,717 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:31:08,717 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:31:08,717 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:31:08,717 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:31:08,718 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:31:08,718 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:31:08,718 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:31:08,718 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:31:08,718 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:31:08,718 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:31:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:31:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:31:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:31:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:31:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:31:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:31:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:31:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:31:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:31:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:31:08,721 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:08,721 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:08,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:31:08,722 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:31:08,722 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:31:08,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:31:08,722 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:31:08,722 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:31:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:31:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:31:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:31:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:31:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:31:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:31:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:31:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:31:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:31:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:31:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:31:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-09-20 13:31:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-09-20 13:31:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:31:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:31:08,726 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:31:08,726 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:31:08,726 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:31:08,726 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-09-20 13:31:08,726 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:31:08,727 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:31:08,727 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:31:08,727 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:31:08,727 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:31:08,728 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:31:08,728 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:31:08,728 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:31:08,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:31:08,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:31:08,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:31:10,046 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:31:10,046 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:31:10,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:10 BoogieIcfgContainer [2019-09-20 13:31:10,048 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:31:10,049 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:31:10,050 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:31:10,053 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:31:10,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:31:07" (1/3) ... [2019-09-20 13:31:10,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f5284f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:10, skipping insertion in model container [2019-09-20 13:31:10,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:08" (2/3) ... [2019-09-20 13:31:10,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f5284f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:10, skipping insertion in model container [2019-09-20 13:31:10,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:10" (3/3) ... [2019-09-20 13:31:10,072 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product02.cil.c [2019-09-20 13:31:10,082 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:31:10,090 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:31:10,106 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:31:10,131 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:31:10,131 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:31:10,131 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:31:10,131 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:31:10,132 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:31:10,132 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:31:10,132 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:31:10,132 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:31:10,149 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states. [2019-09-20 13:31:10,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-20 13:31:10,160 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:10,161 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:31:10,164 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:10,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:10,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1661019057, now seen corresponding path program 1 times [2019-09-20 13:31:10,171 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:10,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:10,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:10,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:10,220 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:10,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:10,561 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:10,563 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:10,564 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:31:10,564 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:10,569 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:31:10,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:31:10,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:10,586 INFO L87 Difference]: Start difference. First operand 138 states. Second operand 2 states. [2019-09-20 13:31:10,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:10,612 INFO L93 Difference]: Finished difference Result 106 states and 122 transitions. [2019-09-20 13:31:10,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:31:10,613 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2019-09-20 13:31:10,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:10,623 INFO L225 Difference]: With dead ends: 106 [2019-09-20 13:31:10,624 INFO L226 Difference]: Without dead ends: 95 [2019-09-20 13:31:10,626 INFO L636 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 [2019-09-20 13:31:10,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-09-20 13:31:10,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2019-09-20 13:31:10,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-09-20 13:31:10,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 110 transitions. [2019-09-20 13:31:10,671 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 110 transitions. Word has length 59 [2019-09-20 13:31:10,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:10,672 INFO L475 AbstractCegarLoop]: Abstraction has 95 states and 110 transitions. [2019-09-20 13:31:10,672 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:31:10,672 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 110 transitions. [2019-09-20 13:31:10,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-20 13:31:10,676 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:10,676 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:31:10,676 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:10,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:10,677 INFO L82 PathProgramCache]: Analyzing trace with hash 828652057, now seen corresponding path program 1 times [2019-09-20 13:31:10,677 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:10,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:10,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:10,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:10,680 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:10,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:10,838 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:10,839 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:10,839 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:31:10,839 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:10,841 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:31:10,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:31:10,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:31:10,842 INFO L87 Difference]: Start difference. First operand 95 states and 110 transitions. Second operand 3 states. [2019-09-20 13:31:10,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:10,854 INFO L93 Difference]: Finished difference Result 86 states and 98 transitions. [2019-09-20 13:31:10,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:31:10,856 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-09-20 13:31:10,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:10,858 INFO L225 Difference]: With dead ends: 86 [2019-09-20 13:31:10,859 INFO L226 Difference]: Without dead ends: 86 [2019-09-20 13:31:10,861 INFO L636 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 [2019-09-20 13:31:10,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2019-09-20 13:31:10,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2019-09-20 13:31:10,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-09-20 13:31:10,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 98 transitions. [2019-09-20 13:31:10,875 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 98 transitions. Word has length 60 [2019-09-20 13:31:10,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:10,875 INFO L475 AbstractCegarLoop]: Abstraction has 86 states and 98 transitions. [2019-09-20 13:31:10,875 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:31:10,875 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 98 transitions. [2019-09-20 13:31:10,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-20 13:31:10,878 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:10,878 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:31:10,878 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:10,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:10,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1426566225, now seen corresponding path program 1 times [2019-09-20 13:31:10,879 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:10,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:10,882 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:10,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:10,882 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:11,043 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:11,043 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:11,044 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:31:11,044 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:11,045 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:31:11,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:31:11,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:31:11,046 INFO L87 Difference]: Start difference. First operand 86 states and 98 transitions. Second operand 7 states. [2019-09-20 13:31:11,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:11,334 INFO L93 Difference]: Finished difference Result 86 states and 97 transitions. [2019-09-20 13:31:11,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:31:11,335 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2019-09-20 13:31:11,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:11,337 INFO L225 Difference]: With dead ends: 86 [2019-09-20 13:31:11,337 INFO L226 Difference]: Without dead ends: 86 [2019-09-20 13:31:11,339 INFO L636 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 [2019-09-20 13:31:11,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2019-09-20 13:31:11,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2019-09-20 13:31:11,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-09-20 13:31:11,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 97 transitions. [2019-09-20 13:31:11,352 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 97 transitions. Word has length 65 [2019-09-20 13:31:11,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:11,355 INFO L475 AbstractCegarLoop]: Abstraction has 86 states and 97 transitions. [2019-09-20 13:31:11,356 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:31:11,356 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 97 transitions. [2019-09-20 13:31:11,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-09-20 13:31:11,359 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:11,359 INFO L407 BasicCegarLoop]: trace histogram [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, 1, 1] [2019-09-20 13:31:11,359 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:11,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:11,360 INFO L82 PathProgramCache]: Analyzing trace with hash -116553072, now seen corresponding path program 1 times [2019-09-20 13:31:11,360 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:11,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:11,362 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:11,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:11,363 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:11,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:11,526 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-20 13:31:11,527 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:11,527 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:31:11,527 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:11,528 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:31:11,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:31:11,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:31:11,529 INFO L87 Difference]: Start difference. First operand 86 states and 97 transitions. Second operand 6 states. [2019-09-20 13:31:11,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:11,733 INFO L93 Difference]: Finished difference Result 80 states and 88 transitions. [2019-09-20 13:31:11,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:31:11,733 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 68 [2019-09-20 13:31:11,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:11,734 INFO L225 Difference]: With dead ends: 80 [2019-09-20 13:31:11,734 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:31:11,735 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:31:11,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:31:11,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:31:11,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:31:11,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:31:11,736 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68 [2019-09-20 13:31:11,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:11,736 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:31:11,736 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:31:11,736 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:31:11,737 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:31:11,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:31:11 BoogieIcfgContainer [2019-09-20 13:31:11,742 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:31:11,744 INFO L168 Benchmark]: Toolchain (without parser) took 3793.49 ms. Allocated memory was 140.0 MB in the beginning and 262.7 MB in the end (delta: 122.7 MB). Free memory was 86.6 MB in the beginning and 217.4 MB in the end (delta: -130.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:31:11,745 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 105.9 MB in the beginning and 105.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-09-20 13:31:11,746 INFO L168 Benchmark]: CACSL2BoogieTranslator took 613.94 ms. Allocated memory was 140.0 MB in the beginning and 200.3 MB in the end (delta: 60.3 MB). Free memory was 86.4 MB in the beginning and 167.3 MB in the end (delta: -80.9 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:11,747 INFO L168 Benchmark]: Boogie Preprocessor took 81.67 ms. Allocated memory is still 200.3 MB. Free memory was 167.3 MB in the beginning and 163.0 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:11,748 INFO L168 Benchmark]: RCFGBuilder took 1401.02 ms. Allocated memory is still 200.3 MB. Free memory was 163.0 MB in the beginning and 79.6 MB in the end (delta: 83.4 MB). Peak memory consumption was 83.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:11,749 INFO L168 Benchmark]: TraceAbstraction took 1692.62 ms. Allocated memory was 200.3 MB in the beginning and 262.7 MB in the end (delta: 62.4 MB). Free memory was 79.0 MB in the beginning and 217.4 MB in the end (delta: -138.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:31:11,753 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 105.9 MB in the beginning and 105.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 613.94 ms. Allocated memory was 140.0 MB in the beginning and 200.3 MB in the end (delta: 60.3 MB). Free memory was 86.4 MB in the beginning and 167.3 MB in the end (delta: -80.9 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 81.67 ms. Allocated memory is still 200.3 MB. Free memory was 167.3 MB in the beginning and 163.0 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1401.02 ms. Allocated memory is still 200.3 MB. Free memory was 163.0 MB in the beginning and 79.6 MB in the end (delta: 83.4 MB). Peak memory consumption was 83.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1692.62 ms. Allocated memory was 200.3 MB in the beginning and 262.7 MB in the end (delta: 62.4 MB). Free memory was 79.0 MB in the beginning and 217.4 MB in the end (delta: -138.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 690]: 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 37 procedures, 208 locations, 1 error locations. SAFE Result, 1.6s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 396 SDtfs, 149 SDslu, 495 SDs, 0 SdLazy, 140 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 252 NumberOfCodeBlocks, 252 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 248 ConstructedInterpolants, 0 QuantifiedInterpolants, 25622 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 12/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...