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 0.1.24-673a906-m [2019-10-03 02:58:33,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:58:33,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:58:33,046 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:58:33,046 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:58:33,048 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:58:33,049 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:58:33,051 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:58:33,052 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:58:33,053 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:58:33,054 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:58:33,055 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:58:33,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:58:33,057 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:58:33,058 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:58:33,059 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:58:33,059 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:58:33,060 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:58:33,062 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:58:33,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:58:33,066 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:58:33,067 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:58:33,068 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:58:33,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:58:33,071 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:58:33,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:58:33,072 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:58:33,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:58:33,073 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:58:33,074 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:58:33,074 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:58:33,075 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:58:33,076 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:58:33,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:58:33,078 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:58:33,078 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:58:33,078 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:58:33,079 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:58:33,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:58:33,080 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:58:33,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:58:33,081 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 [2019-10-03 02:58:33,096 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:58:33,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:58:33,097 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:58:33,097 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:58:33,098 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:58:33,098 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:58:33,098 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:58:33,098 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:58:33,099 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:58:33,099 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:58:33,099 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:58:33,100 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:58:33,100 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:58:33,100 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:58:33,100 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:58:33,100 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:58:33,101 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:58:33,101 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:58:33,101 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:58:33,101 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:58:33,101 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:58:33,102 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:58:33,102 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:58:33,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:58:33,102 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:58:33,102 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:58:33,103 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:58:33,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:58:33,103 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:58:33,103 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:58:33,132 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:58:33,144 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:58:33,147 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:58:33,149 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:58:33,149 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:58:33,150 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product58.cil.c [2019-10-03 02:58:33,209 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09bcf677d/0492a783f5ac44cdb36963a481a2ce0d/FLAG42c5f777a [2019-10-03 02:58:33,677 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:58:33,677 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product58.cil.c [2019-10-03 02:58:33,690 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09bcf677d/0492a783f5ac44cdb36963a481a2ce0d/FLAG42c5f777a [2019-10-03 02:58:34,042 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09bcf677d/0492a783f5ac44cdb36963a481a2ce0d [2019-10-03 02:58:34,051 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:58:34,052 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:58:34,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:58:34,053 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:58:34,056 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:58:34,058 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:58:34" (1/1) ... [2019-10-03 02:58:34,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73ec9619 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:34, skipping insertion in model container [2019-10-03 02:58:34,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:58:34" (1/1) ... [2019-10-03 02:58:34,068 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:58:34,121 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:58:34,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:58:34,617 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:58:34,753 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:58:34,802 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:58:34,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:34 WrapperNode [2019-10-03 02:58:34,802 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:58:34,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:58:34,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:58:34,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:58:34,813 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:34" (1/1) ... [2019-10-03 02:58:34,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:34" (1/1) ... [2019-10-03 02:58:34,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:34" (1/1) ... [2019-10-03 02:58:34,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:34" (1/1) ... [2019-10-03 02:58:34,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:34" (1/1) ... [2019-10-03 02:58:34,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:34" (1/1) ... [2019-10-03 02:58:34,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:34" (1/1) ... [2019-10-03 02:58:34,887 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:58:34,887 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:58:34,887 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:58:34,887 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:58:34,888 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:34" (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 [2019-10-03 02:58:34,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:58:34,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:58:34,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:58:34,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:58:34,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:58:34,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:58:34,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:58:34,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:58:34,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:58:34,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-10-03 02:58:34,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:58:34,952 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-03 02:58:34,953 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-03 02:58:34,953 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-03 02:58:34,953 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-03 02:58:34,953 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-03 02:58:34,953 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-03 02:58:34,953 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-03 02:58:34,954 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-03 02:58:34,954 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:58:34,954 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:58:34,954 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:58:34,954 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:58:34,954 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:58:34,955 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:58:34,955 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:58:34,955 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:58:34,955 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:58:34,955 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:58:34,955 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-03 02:58:34,956 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-03 02:58:34,956 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-03 02:58:34,956 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-03 02:58:34,956 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-03 02:58:34,956 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-03 02:58:34,956 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-03 02:58:34,957 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-03 02:58:34,957 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-03 02:58:34,957 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-03 02:58:34,957 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-03 02:58:34,957 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-03 02:58:34,957 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:58:34,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:58:34,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:58:34,958 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:58:34,958 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:58:34,958 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:58:34,958 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:58:34,958 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:58:34,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:58:34,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:58:34,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:58:34,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:58:34,959 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:58:34,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:58:34,959 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:58:34,960 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:58:34,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:58:34,960 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:58:34,960 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:58:34,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:58:34,960 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:58:34,961 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:58:34,961 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-03 02:58:34,961 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-03 02:58:34,961 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-10-03 02:58:34,961 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-03 02:58:34,961 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-03 02:58:34,961 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-03 02:58:34,962 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-03 02:58:34,962 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-03 02:58:34,962 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-03 02:58:34,962 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-03 02:58:34,962 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:58:34,962 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:58:34,963 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-03 02:58:34,963 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:58:34,963 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:58:34,963 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:58:34,963 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:58:34,963 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:58:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:58:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:58:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:58:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:58:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-03 02:58:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-03 02:58:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-03 02:58:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-03 02:58:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-03 02:58:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-03 02:58:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-03 02:58:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-03 02:58:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-03 02:58:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-03 02:58:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:58:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:58:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:58:36,000 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:58:36,000 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:58:36,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:58:36 BoogieIcfgContainer [2019-10-03 02:58:36,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:58:36,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:58:36,003 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:58:36,006 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:58:36,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:58:34" (1/3) ... [2019-10-03 02:58:36,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eaf8334 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:58:36, skipping insertion in model container [2019-10-03 02:58:36,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:34" (2/3) ... [2019-10-03 02:58:36,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eaf8334 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:58:36, skipping insertion in model container [2019-10-03 02:58:36,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:58:36" (3/3) ... [2019-10-03 02:58:36,012 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product58.cil.c [2019-10-03 02:58:36,022 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:58:36,032 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:58:36,049 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:58:36,084 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:58:36,084 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:58:36,084 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:58:36,085 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:58:36,086 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:58:36,086 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:58:36,086 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:58:36,087 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:58:36,106 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states. [2019-10-03 02:58:36,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-03 02:58:36,118 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:36,119 INFO L411 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] [2019-10-03 02:58:36,121 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:36,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:36,125 INFO L82 PathProgramCache]: Analyzing trace with hash -298144076, now seen corresponding path program 1 times [2019-10-03 02:58:36,127 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:36,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:36,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:36,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:36,180 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:36,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:36,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:36,478 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:36,478 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:58:36,479 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:36,485 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:58:36,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:58:36,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:58:36,503 INFO L87 Difference]: Start difference. First operand 190 states. Second operand 2 states. [2019-10-03 02:58:36,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:36,551 INFO L93 Difference]: Finished difference Result 158 states and 182 transitions. [2019-10-03 02:58:36,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:58:36,552 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-10-03 02:58:36,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:36,565 INFO L225 Difference]: With dead ends: 158 [2019-10-03 02:58:36,565 INFO L226 Difference]: Without dead ends: 147 [2019-10-03 02:58:36,567 INFO L640 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 [2019-10-03 02:58:36,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2019-10-03 02:58:36,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2019-10-03 02:58:36,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2019-10-03 02:58:36,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 170 transitions. [2019-10-03 02:58:36,620 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 170 transitions. Word has length 46 [2019-10-03 02:58:36,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:36,621 INFO L475 AbstractCegarLoop]: Abstraction has 147 states and 170 transitions. [2019-10-03 02:58:36,621 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:58:36,621 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 170 transitions. [2019-10-03 02:58:36,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-03 02:58:36,624 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:36,624 INFO L411 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] [2019-10-03 02:58:36,625 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:36,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:36,625 INFO L82 PathProgramCache]: Analyzing trace with hash -491113124, now seen corresponding path program 1 times [2019-10-03 02:58:36,625 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:36,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:36,628 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:36,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:36,629 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:36,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:36,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:36,745 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:36,745 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:58:36,745 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:36,747 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:58:36,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:58:36,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:58:36,748 INFO L87 Difference]: Start difference. First operand 147 states and 170 transitions. Second operand 3 states. [2019-10-03 02:58:36,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:36,767 INFO L93 Difference]: Finished difference Result 138 states and 158 transitions. [2019-10-03 02:58:36,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:58:36,769 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-03 02:58:36,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:36,771 INFO L225 Difference]: With dead ends: 138 [2019-10-03 02:58:36,773 INFO L226 Difference]: Without dead ends: 138 [2019-10-03 02:58:36,774 INFO L640 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 [2019-10-03 02:58:36,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2019-10-03 02:58:36,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2019-10-03 02:58:36,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2019-10-03 02:58:36,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 158 transitions. [2019-10-03 02:58:36,790 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 158 transitions. Word has length 47 [2019-10-03 02:58:36,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:36,790 INFO L475 AbstractCegarLoop]: Abstraction has 138 states and 158 transitions. [2019-10-03 02:58:36,790 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:58:36,790 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 158 transitions. [2019-10-03 02:58:36,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-03 02:58:36,793 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:36,793 INFO L411 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] [2019-10-03 02:58:36,793 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:36,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:36,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1388977157, now seen corresponding path program 1 times [2019-10-03 02:58:36,794 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:36,796 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:36,796 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:36,796 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:36,797 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:36,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:36,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:36,919 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:36,919 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:58:36,919 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:36,920 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:58:36,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:58:36,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:58:36,921 INFO L87 Difference]: Start difference. First operand 138 states and 158 transitions. Second operand 7 states. [2019-10-03 02:58:37,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:37,274 INFO L93 Difference]: Finished difference Result 138 states and 157 transitions. [2019-10-03 02:58:37,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:58:37,274 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-10-03 02:58:37,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:37,277 INFO L225 Difference]: With dead ends: 138 [2019-10-03 02:58:37,277 INFO L226 Difference]: Without dead ends: 138 [2019-10-03 02:58:37,277 INFO L640 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 [2019-10-03 02:58:37,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2019-10-03 02:58:37,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2019-10-03 02:58:37,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2019-10-03 02:58:37,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 157 transitions. [2019-10-03 02:58:37,288 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 157 transitions. Word has length 52 [2019-10-03 02:58:37,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:37,289 INFO L475 AbstractCegarLoop]: Abstraction has 138 states and 157 transitions. [2019-10-03 02:58:37,289 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:58:37,289 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 157 transitions. [2019-10-03 02:58:37,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-03 02:58:37,292 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:37,292 INFO L411 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] [2019-10-03 02:58:37,292 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:37,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:37,293 INFO L82 PathProgramCache]: Analyzing trace with hash 105794737, now seen corresponding path program 1 times [2019-10-03 02:58:37,293 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:37,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:37,296 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:37,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:37,296 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:37,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:37,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:37,424 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:37,424 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:58:37,424 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:37,425 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:58:37,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:58:37,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:58:37,425 INFO L87 Difference]: Start difference. First operand 138 states and 157 transitions. Second operand 5 states. [2019-10-03 02:58:37,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:37,883 INFO L93 Difference]: Finished difference Result 239 states and 274 transitions. [2019-10-03 02:58:37,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:58:37,883 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2019-10-03 02:58:37,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:37,887 INFO L225 Difference]: With dead ends: 239 [2019-10-03 02:58:37,887 INFO L226 Difference]: Without dead ends: 239 [2019-10-03 02:58:37,889 INFO L640 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 [2019-10-03 02:58:37,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2019-10-03 02:58:37,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 220. [2019-10-03 02:58:37,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2019-10-03 02:58:37,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 248 transitions. [2019-10-03 02:58:37,918 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 248 transitions. Word has length 65 [2019-10-03 02:58:37,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:37,919 INFO L475 AbstractCegarLoop]: Abstraction has 220 states and 248 transitions. [2019-10-03 02:58:37,919 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:58:37,919 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 248 transitions. [2019-10-03 02:58:37,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-10-03 02:58:37,925 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:37,925 INFO L411 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] [2019-10-03 02:58:37,926 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:37,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:37,927 INFO L82 PathProgramCache]: Analyzing trace with hash -830596407, now seen corresponding path program 1 times [2019-10-03 02:58:37,927 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:37,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:37,929 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:37,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:37,930 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:37,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:38,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:38,054 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:38,054 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-03 02:58:38,054 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:38,055 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-03 02:58:38,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-03 02:58:38,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:58:38,055 INFO L87 Difference]: Start difference. First operand 220 states and 248 transitions. Second operand 8 states. [2019-10-03 02:58:38,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:38,092 INFO L93 Difference]: Finished difference Result 227 states and 255 transitions. [2019-10-03 02:58:38,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:58:38,092 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2019-10-03 02:58:38,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:38,095 INFO L225 Difference]: With dead ends: 227 [2019-10-03 02:58:38,096 INFO L226 Difference]: Without dead ends: 227 [2019-10-03 02:58:38,096 INFO L640 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 [2019-10-03 02:58:38,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2019-10-03 02:58:38,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 224. [2019-10-03 02:58:38,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2019-10-03 02:58:38,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 252 transitions. [2019-10-03 02:58:38,127 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 252 transitions. Word has length 79 [2019-10-03 02:58:38,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:38,127 INFO L475 AbstractCegarLoop]: Abstraction has 224 states and 252 transitions. [2019-10-03 02:58:38,127 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-03 02:58:38,128 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 252 transitions. [2019-10-03 02:58:38,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-10-03 02:58:38,130 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:38,130 INFO L411 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] [2019-10-03 02:58:38,131 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:38,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:38,131 INFO L82 PathProgramCache]: Analyzing trace with hash 2078167495, now seen corresponding path program 1 times [2019-10-03 02:58:38,131 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:38,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:38,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:38,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:38,134 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:38,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:38,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:38,313 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:38,313 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-03 02:58:38,313 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:38,314 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-03 02:58:38,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-03 02:58:38,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-03 02:58:38,315 INFO L87 Difference]: Start difference. First operand 224 states and 252 transitions. Second operand 10 states. [2019-10-03 02:58:38,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:38,901 INFO L93 Difference]: Finished difference Result 526 states and 614 transitions. [2019-10-03 02:58:38,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-03 02:58:38,901 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 79 [2019-10-03 02:58:38,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:38,906 INFO L225 Difference]: With dead ends: 526 [2019-10-03 02:58:38,907 INFO L226 Difference]: Without dead ends: 526 [2019-10-03 02:58:38,907 INFO L640 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 [2019-10-03 02:58:38,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2019-10-03 02:58:38,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 516. [2019-10-03 02:58:38,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 516 states. [2019-10-03 02:58:38,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 597 transitions. [2019-10-03 02:58:38,935 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 597 transitions. Word has length 79 [2019-10-03 02:58:38,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:38,936 INFO L475 AbstractCegarLoop]: Abstraction has 516 states and 597 transitions. [2019-10-03 02:58:38,936 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-03 02:58:38,936 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 597 transitions. [2019-10-03 02:58:38,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-10-03 02:58:38,939 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:38,940 INFO L411 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, 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] [2019-10-03 02:58:38,940 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:38,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:38,940 INFO L82 PathProgramCache]: Analyzing trace with hash -640912824, now seen corresponding path program 1 times [2019-10-03 02:58:38,941 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:38,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:38,943 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:38,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:38,943 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:38,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:39,044 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-10-03 02:58:39,045 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:58:39,045 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:58:39,047 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 139 with the following transitions: [2019-10-03 02:58:39,048 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], [231], [232], [233], [235], [238], [242], [243], [251], [255], [261], [297], [300], [302], [308], [315], [318], [322], [323], [326], [327], [328], [421], [422], [432], [440], [441], [442], [443], [444], [446], [447], [448], [449], [450], [451], [452], [453], [454], [494], [495], [496], [497], [502], [503], [510], [511], [514], [515], [516], [517], [522], [523], [526], [527], [532], [540], [541], [542] [2019-10-03 02:58:39,080 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:58:39,081 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:58:39,142 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:58:39,144 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. [2019-10-03 02:58:39,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:39,148 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:58:39,207 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:58:39,207 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:58:39,212 INFO L420 sIntCurrentIteration]: We unified 137 AI predicates to 137 [2019-10-03 02:58:39,213 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:58:39,213 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:58:39,214 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-10-03 02:58:39,214 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:39,214 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:58:39,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:58:39,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:58:39,215 INFO L87 Difference]: Start difference. First operand 516 states and 597 transitions. Second operand 2 states. [2019-10-03 02:58:39,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:39,216 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:58:39,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:58:39,216 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 138 [2019-10-03 02:58:39,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:39,216 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:58:39,216 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:58:39,217 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:58:39,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:58:39,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:58:39,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:58:39,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:58:39,218 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 138 [2019-10-03 02:58:39,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:39,218 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:58:39,218 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:58:39,218 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:58:39,218 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:58:39,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:58:39 BoogieIcfgContainer [2019-10-03 02:58:39,228 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:58:39,231 INFO L168 Benchmark]: Toolchain (without parser) took 5177.80 ms. Allocated memory was 137.4 MB in the beginning and 274.2 MB in the end (delta: 136.8 MB). Free memory was 82.3 MB in the beginning and 142.0 MB in the end (delta: -59.7 MB). Peak memory consumption was 77.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:39,232 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.4 MB. Free memory was 102.1 MB in the beginning and 101.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:58:39,233 INFO L168 Benchmark]: CACSL2BoogieTranslator took 749.89 ms. Allocated memory was 137.4 MB in the beginning and 197.7 MB in the end (delta: 60.3 MB). Free memory was 82.1 MB in the beginning and 160.7 MB in the end (delta: -78.6 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:39,235 INFO L168 Benchmark]: Boogie Preprocessor took 83.71 ms. Allocated memory is still 197.7 MB. Free memory was 160.7 MB in the beginning and 156.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:39,236 INFO L168 Benchmark]: RCFGBuilder took 1114.85 ms. Allocated memory was 197.7 MB in the beginning and 216.5 MB in the end (delta: 18.9 MB). Free memory was 156.9 MB in the beginning and 185.8 MB in the end (delta: -28.9 MB). Peak memory consumption was 94.0 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:39,237 INFO L168 Benchmark]: TraceAbstraction took 3225.12 ms. Allocated memory was 216.5 MB in the beginning and 274.2 MB in the end (delta: 57.7 MB). Free memory was 185.8 MB in the beginning and 142.0 MB in the end (delta: 43.8 MB). Peak memory consumption was 101.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:39,241 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 137.4 MB. Free memory was 102.1 MB in the beginning and 101.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 749.89 ms. Allocated memory was 137.4 MB in the beginning and 197.7 MB in the end (delta: 60.3 MB). Free memory was 82.1 MB in the beginning and 160.7 MB in the end (delta: -78.6 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 83.71 ms. Allocated memory is still 197.7 MB. Free memory was 160.7 MB in the beginning and 156.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1114.85 ms. Allocated memory was 197.7 MB in the beginning and 216.5 MB in the end (delta: 18.9 MB). Free memory was 156.9 MB in the beginning and 185.8 MB in the end (delta: -28.9 MB). Peak memory consumption was 94.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3225.12 ms. Allocated memory was 216.5 MB in the beginning and 274.2 MB in the end (delta: 57.7 MB). Free memory was 185.8 MB in the beginning and 142.0 MB in the end (delta: 43.8 MB). Peak memory consumption was 101.4 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, 3.1s OverallTime, 7 OverallIterations, 2 TraceHistogramMax, 1.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1014 SDtfs, 684 SDslu, 2770 SDs, 0 SdLazy, 793 SolverSat, 217 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 204 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s 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, 0.9051094890510949 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, 0.6s InterpolantComputationTime, 506 NumberOfCodeBlocks, 506 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 499 ConstructedInterpolants, 0 QuantifiedInterpolants, 80801 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 47/51 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...