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_spec2_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:48:45,879 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:48:45,882 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:48:45,898 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:48:45,899 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:48:45,900 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:48:45,902 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:48:45,911 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:48:45,915 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:48:45,917 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:48:45,919 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:48:45,922 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:48:45,922 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:48:45,923 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:48:45,925 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:48:45,927 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:48:45,928 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:48:45,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:48:45,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:48:45,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:48:45,936 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:48:45,937 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:48:45,938 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:48:45,939 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:48:45,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:48:45,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:48:45,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:48:45,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:48:45,942 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:48:45,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:48:45,943 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:48:45,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:48:45,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:48:45,944 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:48:45,945 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:48:45,945 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:48:45,946 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:48:45,946 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:48:45,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:48:45,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:48:45,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:48:45,948 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 02:48:45,962 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:48:45,962 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:48:45,963 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:48:45,963 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:48:45,963 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:48:45,964 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:48:45,964 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:48:45,964 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:48:45,964 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:48:45,964 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:48:45,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:48:45,965 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:48:45,965 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:48:45,966 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:48:45,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:48:45,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:48:45,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:48:45,966 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:48:45,967 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:48:45,967 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:48:45,967 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:48:45,967 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:48:45,967 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:48:45,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:48:45,968 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:48:45,968 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:48:45,968 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:48:45,968 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:48:45,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:48:45,969 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:48:45,997 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:48:46,011 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:48:46,015 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:48:46,016 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:48:46,017 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:48:46,018 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product43.cil.c [2019-09-10 02:48:46,088 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e76903f8f/1c6b054e330344e0b0c43eb35f526c55/FLAG2e52a3b59 [2019-09-10 02:48:46,610 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:48:46,610 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product43.cil.c [2019-09-10 02:48:46,629 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e76903f8f/1c6b054e330344e0b0c43eb35f526c55/FLAG2e52a3b59 [2019-09-10 02:48:46,903 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e76903f8f/1c6b054e330344e0b0c43eb35f526c55 [2019-09-10 02:48:46,914 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:48:46,915 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:48:46,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:48:46,916 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:48:46,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:48:46,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:48:46" (1/1) ... [2019-09-10 02:48:46,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35b237eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:46, skipping insertion in model container [2019-09-10 02:48:46,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:48:46" (1/1) ... [2019-09-10 02:48:46,931 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:48:46,993 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:48:47,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:48:47,420 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:48:47,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:48:47,621 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:48:47,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:47 WrapperNode [2019-09-10 02:48:47,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:48:47,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:48:47,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:48:47,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:48:47,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:47" (1/1) ... [2019-09-10 02:48:47,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:47" (1/1) ... [2019-09-10 02:48:47,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:47" (1/1) ... [2019-09-10 02:48:47,672 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:47" (1/1) ... [2019-09-10 02:48:47,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:47" (1/1) ... [2019-09-10 02:48:47,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:47" (1/1) ... [2019-09-10 02:48:47,713 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:47" (1/1) ... [2019-09-10 02:48:47,721 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:48:47,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:48:47,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:48:47,722 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:48:47,723 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:48:47,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:48:47,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:48:47,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:48:47,785 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:48:47,785 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:48:47,786 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:48:47,786 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:48:47,786 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:48:47,786 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:48:47,786 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-10 02:48:47,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:48:47,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:48:47,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:48:47,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:48:47,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:48:47,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:48:47,787 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:48:47,788 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:48:47,788 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:48:47,788 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:48:47,788 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:48:47,788 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:48:47,788 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:48:47,788 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:48:47,789 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:48:47,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-10 02:48:47,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-10 02:48:47,789 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:48:47,789 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:48:47,789 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-10 02:48:47,790 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:48:47,790 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2019-09-10 02:48:47,790 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:48:47,790 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:48:47,790 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:48:47,790 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:48:47,791 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:48:47,791 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-10 02:48:47,791 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-10 02:48:47,791 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:48:47,791 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:48:47,791 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:48:47,791 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:48:47,791 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:48:47,791 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:48:47,791 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:48:47,792 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:48:47,792 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:48:47,792 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:48:47,792 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-10 02:48:47,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:48:47,792 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:48:47,792 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:48:47,792 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:48:47,792 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:48:47,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:48:47,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:48:47,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:48:47,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:48:47,793 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:48:47,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:48:47,793 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:48:47,793 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:48:47,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:48:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:48:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:48:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:48:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:48:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:48:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:48:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:48:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:48:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-10 02:48:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:48:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:48:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:48:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:48:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:48:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:48:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:48:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:48:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:48:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-10 02:48:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-10 02:48:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:48:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:48:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:48:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-10 02:48:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-10 02:48:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2019-09-10 02:48:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:48:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:48:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:48:47,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:48:48,784 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:48:48,785 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:48:48,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:48:48 BoogieIcfgContainer [2019-09-10 02:48:48,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:48:48,787 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:48:48,788 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:48:48,791 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:48:48,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:48:46" (1/3) ... [2019-09-10 02:48:48,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@153235e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:48:48, skipping insertion in model container [2019-09-10 02:48:48,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:47" (2/3) ... [2019-09-10 02:48:48,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@153235e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:48:48, skipping insertion in model container [2019-09-10 02:48:48,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:48:48" (3/3) ... [2019-09-10 02:48:48,794 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product43.cil.c [2019-09-10 02:48:48,804 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:48:48,812 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:48:48,828 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:48:48,854 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:48:48,855 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:48:48,855 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:48:48,855 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:48:48,855 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:48:48,856 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:48:48,856 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:48:48,856 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:48:48,875 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states. [2019-09-10 02:48:48,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-10 02:48:48,887 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:48,888 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:48,891 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:48,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:48,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1550952004, now seen corresponding path program 1 times [2019-09-10 02:48:48,899 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:48,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:48,944 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:48,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:48,944 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:49,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:49,281 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:49,281 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:48:49,281 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:49,287 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:48:49,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:48:49,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:48:49,303 INFO L87 Difference]: Start difference. First operand 174 states. Second operand 2 states. [2019-09-10 02:48:49,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:49,327 INFO L93 Difference]: Finished difference Result 142 states and 165 transitions. [2019-09-10 02:48:49,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:48:49,328 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-10 02:48:49,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:49,340 INFO L225 Difference]: With dead ends: 142 [2019-09-10 02:48:49,341 INFO L226 Difference]: Without dead ends: 131 [2019-09-10 02:48:49,342 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:48:49,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-09-10 02:48:49,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2019-09-10 02:48:49,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-09-10 02:48:49,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 153 transitions. [2019-09-10 02:48:49,391 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 153 transitions. Word has length 51 [2019-09-10 02:48:49,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:49,392 INFO L475 AbstractCegarLoop]: Abstraction has 131 states and 153 transitions. [2019-09-10 02:48:49,392 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:48:49,392 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 153 transitions. [2019-09-10 02:48:49,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-10 02:48:49,395 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:49,395 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:49,396 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:49,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:49,396 INFO L82 PathProgramCache]: Analyzing trace with hash -185895496, now seen corresponding path program 1 times [2019-09-10 02:48:49,396 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:49,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:49,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:49,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:49,398 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:49,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:49,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:49,493 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:49,493 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:48:49,493 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:49,495 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:48:49,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:48:49,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:48:49,495 INFO L87 Difference]: Start difference. First operand 131 states and 153 transitions. Second operand 3 states. [2019-09-10 02:48:49,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:49,520 INFO L93 Difference]: Finished difference Result 122 states and 141 transitions. [2019-09-10 02:48:49,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:48:49,523 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-10 02:48:49,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:49,527 INFO L225 Difference]: With dead ends: 122 [2019-09-10 02:48:49,527 INFO L226 Difference]: Without dead ends: 122 [2019-09-10 02:48:49,528 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:48:49,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2019-09-10 02:48:49,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2019-09-10 02:48:49,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2019-09-10 02:48:49,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 141 transitions. [2019-09-10 02:48:49,554 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 141 transitions. Word has length 52 [2019-09-10 02:48:49,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:49,558 INFO L475 AbstractCegarLoop]: Abstraction has 122 states and 141 transitions. [2019-09-10 02:48:49,558 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:48:49,558 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 141 transitions. [2019-09-10 02:48:49,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-10 02:48:49,560 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:49,560 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:49,561 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:49,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:49,561 INFO L82 PathProgramCache]: Analyzing trace with hash 794087253, now seen corresponding path program 1 times [2019-09-10 02:48:49,561 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:49,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:49,563 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:49,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:49,564 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:49,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:49,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:49,759 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:49,759 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:48:49,760 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:49,760 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:48:49,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:48:49,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:48:49,761 INFO L87 Difference]: Start difference. First operand 122 states and 141 transitions. Second operand 7 states. [2019-09-10 02:48:50,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:50,158 INFO L93 Difference]: Finished difference Result 267 states and 318 transitions. [2019-09-10 02:48:50,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:48:50,158 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-09-10 02:48:50,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:50,163 INFO L225 Difference]: With dead ends: 267 [2019-09-10 02:48:50,163 INFO L226 Difference]: Without dead ends: 267 [2019-09-10 02:48:50,164 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-10 02:48:50,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2019-09-10 02:48:50,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 247. [2019-09-10 02:48:50,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2019-09-10 02:48:50,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 296 transitions. [2019-09-10 02:48:50,195 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 296 transitions. Word has length 56 [2019-09-10 02:48:50,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:50,195 INFO L475 AbstractCegarLoop]: Abstraction has 247 states and 296 transitions. [2019-09-10 02:48:50,196 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:48:50,196 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 296 transitions. [2019-09-10 02:48:50,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-09-10 02:48:50,199 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:50,199 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:50,199 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:50,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:50,200 INFO L82 PathProgramCache]: Analyzing trace with hash -2145966964, now seen corresponding path program 1 times [2019-09-10 02:48:50,200 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:50,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:50,201 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:50,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:50,202 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:50,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:50,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:50,373 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:50,373 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:48:50,373 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:50,374 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:48:50,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:48:50,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:48:50,375 INFO L87 Difference]: Start difference. First operand 247 states and 296 transitions. Second operand 6 states. [2019-09-10 02:48:50,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:50,563 INFO L93 Difference]: Finished difference Result 448 states and 538 transitions. [2019-09-10 02:48:50,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:48:50,563 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2019-09-10 02:48:50,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:50,568 INFO L225 Difference]: With dead ends: 448 [2019-09-10 02:48:50,568 INFO L226 Difference]: Without dead ends: 448 [2019-09-10 02:48:50,569 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-10 02:48:50,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2019-09-10 02:48:50,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 442. [2019-09-10 02:48:50,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2019-09-10 02:48:50,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 532 transitions. [2019-09-10 02:48:50,601 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 532 transitions. Word has length 62 [2019-09-10 02:48:50,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:50,602 INFO L475 AbstractCegarLoop]: Abstraction has 442 states and 532 transitions. [2019-09-10 02:48:50,602 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:48:50,602 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 532 transitions. [2019-09-10 02:48:50,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-10 02:48:50,606 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:50,606 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:50,606 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:50,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:50,607 INFO L82 PathProgramCache]: Analyzing trace with hash -664368024, now seen corresponding path program 1 times [2019-09-10 02:48:50,607 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:50,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:50,608 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:50,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:50,608 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:50,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:50,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:50,753 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:50,754 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:48:50,754 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:50,755 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:48:50,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:48:50,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:48:50,757 INFO L87 Difference]: Start difference. First operand 442 states and 532 transitions. Second operand 7 states. [2019-09-10 02:48:51,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:51,378 INFO L93 Difference]: Finished difference Result 723 states and 910 transitions. [2019-09-10 02:48:51,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-10 02:48:51,379 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 66 [2019-09-10 02:48:51,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:51,388 INFO L225 Difference]: With dead ends: 723 [2019-09-10 02:48:51,389 INFO L226 Difference]: Without dead ends: 723 [2019-09-10 02:48:51,389 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-10 02:48:51,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2019-09-10 02:48:51,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 639. [2019-09-10 02:48:51,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 639 states. [2019-09-10 02:48:51,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 769 transitions. [2019-09-10 02:48:51,478 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 769 transitions. Word has length 66 [2019-09-10 02:48:51,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:51,478 INFO L475 AbstractCegarLoop]: Abstraction has 639 states and 769 transitions. [2019-09-10 02:48:51,478 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:48:51,479 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 769 transitions. [2019-09-10 02:48:51,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-09-10 02:48:51,484 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:51,485 INFO L399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:51,485 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:51,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:51,485 INFO L82 PathProgramCache]: Analyzing trace with hash -1705973146, now seen corresponding path program 1 times [2019-09-10 02:48:51,486 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:51,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:51,487 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:51,488 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:51,488 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:51,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:51,629 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:48:51,630 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:51,630 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 02:48:51,630 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:51,631 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 02:48:51,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 02:48:51,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:48:51,631 INFO L87 Difference]: Start difference. First operand 639 states and 769 transitions. Second operand 4 states. [2019-09-10 02:48:51,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:51,884 INFO L93 Difference]: Finished difference Result 1785 states and 2255 transitions. [2019-09-10 02:48:51,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 02:48:51,886 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 98 [2019-09-10 02:48:51,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:51,899 INFO L225 Difference]: With dead ends: 1785 [2019-09-10 02:48:51,899 INFO L226 Difference]: Without dead ends: 1785 [2019-09-10 02:48:51,900 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:48:51,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1785 states. [2019-09-10 02:48:51,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1785 to 1751. [2019-09-10 02:48:51,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1751 states. [2019-09-10 02:48:51,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1751 states to 1751 states and 2181 transitions. [2019-09-10 02:48:51,995 INFO L78 Accepts]: Start accepts. Automaton has 1751 states and 2181 transitions. Word has length 98 [2019-09-10 02:48:51,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:51,996 INFO L475 AbstractCegarLoop]: Abstraction has 1751 states and 2181 transitions. [2019-09-10 02:48:51,996 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 02:48:51,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1751 states and 2181 transitions. [2019-09-10 02:48:52,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-09-10 02:48:52,004 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:52,004 INFO L399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:52,005 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:52,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:52,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1619413127, now seen corresponding path program 1 times [2019-09-10 02:48:52,006 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:52,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:52,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:52,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:52,010 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:52,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:52,096 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:48:52,096 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:52,096 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:48:52,097 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:52,098 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:48:52,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:48:52,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:48:52,099 INFO L87 Difference]: Start difference. First operand 1751 states and 2181 transitions. Second operand 6 states. [2019-09-10 02:48:52,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:52,138 INFO L93 Difference]: Finished difference Result 1835 states and 2285 transitions. [2019-09-10 02:48:52,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:48:52,139 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 98 [2019-09-10 02:48:52,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:52,149 INFO L225 Difference]: With dead ends: 1835 [2019-09-10 02:48:52,149 INFO L226 Difference]: Without dead ends: 1835 [2019-09-10 02:48:52,150 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:48:52,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1835 states. [2019-09-10 02:48:52,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1835 to 1811. [2019-09-10 02:48:52,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1811 states. [2019-09-10 02:48:52,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1811 states to 1811 states and 2245 transitions. [2019-09-10 02:48:52,275 INFO L78 Accepts]: Start accepts. Automaton has 1811 states and 2245 transitions. Word has length 98 [2019-09-10 02:48:52,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:52,276 INFO L475 AbstractCegarLoop]: Abstraction has 1811 states and 2245 transitions. [2019-09-10 02:48:52,276 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:48:52,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1811 states and 2245 transitions. [2019-09-10 02:48:52,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-09-10 02:48:52,285 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:52,285 INFO L399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:52,286 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:52,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:52,286 INFO L82 PathProgramCache]: Analyzing trace with hash -429974715, now seen corresponding path program 1 times [2019-09-10 02:48:52,286 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:52,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:52,287 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:52,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:52,287 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:52,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:52,389 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:48:52,389 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:52,389 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 02:48:52,389 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:52,390 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:48:52,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:48:52,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:48:52,394 INFO L87 Difference]: Start difference. First operand 1811 states and 2245 transitions. Second operand 8 states. [2019-09-10 02:48:52,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:52,438 INFO L93 Difference]: Finished difference Result 1471 states and 1791 transitions. [2019-09-10 02:48:52,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:48:52,440 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 98 [2019-09-10 02:48:52,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:52,448 INFO L225 Difference]: With dead ends: 1471 [2019-09-10 02:48:52,448 INFO L226 Difference]: Without dead ends: 1471 [2019-09-10 02:48:52,449 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:48:52,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1471 states. [2019-09-10 02:48:52,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1471 to 1471. [2019-09-10 02:48:52,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1471 states. [2019-09-10 02:48:52,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1471 states to 1471 states and 1791 transitions. [2019-09-10 02:48:52,506 INFO L78 Accepts]: Start accepts. Automaton has 1471 states and 1791 transitions. Word has length 98 [2019-09-10 02:48:52,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:52,507 INFO L475 AbstractCegarLoop]: Abstraction has 1471 states and 1791 transitions. [2019-09-10 02:48:52,507 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:48:52,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1471 states and 1791 transitions. [2019-09-10 02:48:52,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-10 02:48:52,511 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:52,512 INFO L399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:52,512 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:52,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:52,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1139994370, now seen corresponding path program 1 times [2019-09-10 02:48:52,512 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:52,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:52,513 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:52,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:52,514 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:52,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:52,661 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-10 02:48:52,662 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:48:52,662 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:48:52,663 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 103 with the following transitions: [2019-09-10 02:48:52,665 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [92], [108], [112], [113], [114], [117], [119], [122], [132], [134], [143], [147], [151], [154], [159], [162], [167], [170], [186], [188], [191], [193], [196], [199], [220], [221], [222], [224], [229], [232], [235], [237], [242], [244], [245], [246], [247], [253], [257], [299], [303], [304], [307], [308], [309], [333], [335], [336], [354], [355], [405], [406], [411], [413], [416], [424], [425], [426], [427], [428], [429], [430], [431], [432], [466], [467], [468], [469], [474], [475], [476], [477], [480], [484], [485], [486], [487], [488], [490], [491], [492], [493], [494], [495], [498], [499], [500], [508], [509], [510], [512], [513], [518], [519], [520] [2019-09-10 02:48:52,704 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:48:52,704 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:48:52,768 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:48:52,769 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 69 root evaluator evaluations with a maximum evaluation depth of 0. Performed 69 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 128 variables. [2019-09-10 02:48:52,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:52,774 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:48:52,817 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:48:52,817 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:48:52,821 INFO L420 sIntCurrentIteration]: We unified 101 AI predicates to 101 [2019-09-10 02:48:52,822 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:48:52,822 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:48:52,823 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [13] total 13 [2019-09-10 02:48:52,823 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:52,823 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:48:52,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:48:52,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:48:52,824 INFO L87 Difference]: Start difference. First operand 1471 states and 1791 transitions. Second operand 2 states. [2019-09-10 02:48:52,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:52,824 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:48:52,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:48:52,825 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 102 [2019-09-10 02:48:52,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:52,825 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:48:52,825 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:48:52,826 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:48:52,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:48:52,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:48:52,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:48:52,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:48:52,826 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 102 [2019-09-10 02:48:52,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:52,827 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:48:52,827 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:48:52,827 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:48:52,827 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:48:52,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:48:52 BoogieIcfgContainer [2019-09-10 02:48:52,832 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:48:52,835 INFO L168 Benchmark]: Toolchain (without parser) took 5918.26 ms. Allocated memory was 134.2 MB in the beginning and 315.1 MB in the end (delta: 180.9 MB). Free memory was 89.9 MB in the beginning and 166.1 MB in the end (delta: -76.2 MB). Peak memory consumption was 104.7 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:52,836 INFO L168 Benchmark]: CDTParser took 1.06 ms. Allocated memory is still 134.2 MB. Free memory was 108.8 MB in the beginning and 108.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:48:52,837 INFO L168 Benchmark]: CACSL2BoogieTranslator took 705.50 ms. Allocated memory was 134.2 MB in the beginning and 201.9 MB in the end (delta: 67.6 MB). Free memory was 89.7 MB in the beginning and 165.0 MB in the end (delta: -75.3 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:52,838 INFO L168 Benchmark]: Boogie Preprocessor took 99.02 ms. Allocated memory is still 201.9 MB. Free memory was 165.0 MB in the beginning and 161.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:52,840 INFO L168 Benchmark]: RCFGBuilder took 1065.23 ms. Allocated memory was 201.9 MB in the beginning and 228.6 MB in the end (delta: 26.7 MB). Free memory was 161.2 MB in the beginning and 193.6 MB in the end (delta: -32.5 MB). Peak memory consumption was 86.1 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:52,841 INFO L168 Benchmark]: TraceAbstraction took 4044.62 ms. Allocated memory was 228.6 MB in the beginning and 315.1 MB in the end (delta: 86.5 MB). Free memory was 193.6 MB in the beginning and 166.1 MB in the end (delta: 27.5 MB). Peak memory consumption was 114.0 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:52,849 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.06 ms. Allocated memory is still 134.2 MB. Free memory was 108.8 MB in the beginning and 108.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 705.50 ms. Allocated memory was 134.2 MB in the beginning and 201.9 MB in the end (delta: 67.6 MB). Free memory was 89.7 MB in the beginning and 165.0 MB in the end (delta: -75.3 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.02 ms. Allocated memory is still 201.9 MB. Free memory was 165.0 MB in the beginning and 161.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1065.23 ms. Allocated memory was 201.9 MB in the beginning and 228.6 MB in the end (delta: 26.7 MB). Free memory was 161.2 MB in the beginning and 193.6 MB in the end (delta: -32.5 MB). Peak memory consumption was 86.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4044.62 ms. Allocated memory was 228.6 MB in the beginning and 315.1 MB in the end (delta: 86.5 MB). Free memory was 193.6 MB in the beginning and 166.1 MB in the end (delta: 27.5 MB). Peak memory consumption was 114.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 946]: 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 40 procedures, 233 locations, 1 error locations. SAFE Result, 3.9s OverallTime, 9 OverallIterations, 2 TraceHistogramMax, 1.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1302 SDtfs, 792 SDslu, 3001 SDs, 0 SdLazy, 828 SolverSat, 161 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 175 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1811occurred in iteration=7, 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, 1.0792079207920793 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 168 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 683 NumberOfCodeBlocks, 683 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 674 ConstructedInterpolants, 0 QuantifiedInterpolants, 84868 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 10/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...