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_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:08:19,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:08:19,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:08:19,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:08:19,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:08:19,822 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:08:19,824 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:08:19,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:08:19,828 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:08:19,828 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:08:19,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:08:19,831 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:08:19,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:08:19,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:08:19,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:08:19,834 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:08:19,835 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:08:19,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:08:19,838 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:08:19,840 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:08:19,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:08:19,842 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:08:19,844 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:08:19,844 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:08:19,847 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:08:19,847 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:08:19,847 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:08:19,848 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:08:19,849 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:08:19,852 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:08:19,852 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:08:19,853 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:08:19,854 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:08:19,856 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:08:19,857 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:08:19,857 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:08:19,858 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:08:19,858 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:08:19,859 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:08:19,859 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:08:19,860 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:08:19,861 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 [2019-09-16 17:08:19,875 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:08:19,876 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:08:19,876 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:08:19,876 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:08:19,877 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:08:19,877 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:08:19,877 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:08:19,878 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:08:19,878 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:08:19,878 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:08:19,879 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:08:19,879 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:08:19,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:08:19,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:08:19,879 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:08:19,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:08:19,880 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:08:19,880 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:08:19,880 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:08:19,880 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:08:19,881 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:08:19,881 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:08:19,881 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:08:19,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:08:19,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:08:19,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:08:19,882 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:08:19,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:08:19,882 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:08:19,882 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:08:19,910 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:08:19,922 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:08:19,926 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:08:19,927 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:08:19,928 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:08:19,929 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product29.cil.c [2019-09-16 17:08:19,985 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/347159b8c/b4a795efb8a946428e01febce9eec17f/FLAGdd67ddb70 [2019-09-16 17:08:20,473 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:08:20,474 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product29.cil.c [2019-09-16 17:08:20,488 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/347159b8c/b4a795efb8a946428e01febce9eec17f/FLAGdd67ddb70 [2019-09-16 17:08:20,841 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/347159b8c/b4a795efb8a946428e01febce9eec17f [2019-09-16 17:08:20,849 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:08:20,850 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:08:20,851 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:08:20,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:08:20,855 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:08:20,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:08:20" (1/1) ... [2019-09-16 17:08:20,859 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c9a95ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:20, skipping insertion in model container [2019-09-16 17:08:20,859 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:08:20" (1/1) ... [2019-09-16 17:08:20,866 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:08:20,931 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:08:21,417 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:08:21,432 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:08:21,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:08:21,626 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:08:21,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:21 WrapperNode [2019-09-16 17:08:21,627 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:08:21,627 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:08:21,627 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:08:21,628 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:08:21,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:21" (1/1) ... [2019-09-16 17:08:21,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:21" (1/1) ... [2019-09-16 17:08:21,686 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:21" (1/1) ... [2019-09-16 17:08:21,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:21" (1/1) ... [2019-09-16 17:08:21,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:21" (1/1) ... [2019-09-16 17:08:21,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:21" (1/1) ... [2019-09-16 17:08:21,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:21" (1/1) ... [2019-09-16 17:08:21,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:08:21,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:08:21,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:08:21,765 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:08:21,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:21" (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 [2019-09-16 17:08:21,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:08:21,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:08:21,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:08:21,835 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:08:21,835 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-16 17:08:21,835 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-16 17:08:21,836 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:08:21,836 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-16 17:08:21,836 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:08:21,836 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:08:21,836 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:08:21,837 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:08:21,837 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:08:21,837 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-16 17:08:21,837 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:08:21,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:08:21,838 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:08:21,838 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:08:21,838 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:08:21,838 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:08:21,839 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:08:21,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-16 17:08:21,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-16 17:08:21,839 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:08:21,840 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:08:21,840 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:08:21,840 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:08:21,840 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:08:21,840 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:08:21,841 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:08:21,841 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:08:21,841 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:08:21,841 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:08:21,842 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-16 17:08:21,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:08:21,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:08:21,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:08:21,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:08:21,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:08:21,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:08:21,843 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:08:21,843 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:08:21,843 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:08:21,843 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:08:21,843 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:08:21,844 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:08:21,844 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-16 17:08:21,844 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:08:21,844 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:08:21,844 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:08:21,844 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:08:21,845 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:08:21,845 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-16 17:08:21,845 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:08:21,845 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-16 17:08:21,845 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-16 17:08:21,845 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-16 17:08:21,845 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:08:21,846 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-16 17:08:21,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:08:21,846 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:08:21,846 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:08:21,846 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:08:21,846 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:08:21,847 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:08:21,847 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:08:21,847 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:08:21,847 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-16 17:08:21,847 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:08:21,847 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:08:21,848 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:08:21,848 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:08:21,848 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:08:21,848 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:08:21,848 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:08:21,848 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:08:21,849 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:08:21,849 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:08:21,849 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:08:21,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:08:21,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:08:21,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:08:21,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:08:21,850 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:08:21,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:08:21,850 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:08:21,850 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:08:21,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:08:21,850 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:08:21,851 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:08:21,851 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:08:21,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:08:21,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:08:21,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:08:23,101 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:08:23,101 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:08:23,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:08:23 BoogieIcfgContainer [2019-09-16 17:08:23,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:08:23,104 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:08:23,104 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:08:23,108 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:08:23,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:08:20" (1/3) ... [2019-09-16 17:08:23,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@337ff354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:08:23, skipping insertion in model container [2019-09-16 17:08:23,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:21" (2/3) ... [2019-09-16 17:08:23,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@337ff354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:08:23, skipping insertion in model container [2019-09-16 17:08:23,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:08:23" (3/3) ... [2019-09-16 17:08:23,112 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product29.cil.c [2019-09-16 17:08:23,124 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:08:23,135 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:08:23,152 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:08:23,189 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:08:23,190 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:08:23,190 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:08:23,190 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:08:23,190 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:08:23,190 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:08:23,191 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:08:23,191 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:08:23,215 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states. [2019-09-16 17:08:23,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-16 17:08:23,229 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:23,230 INFO L407 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] [2019-09-16 17:08:23,234 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:23,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:23,240 INFO L82 PathProgramCache]: Analyzing trace with hash -454427267, now seen corresponding path program 1 times [2019-09-16 17:08:23,242 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:23,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:23,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:23,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:23,305 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:23,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:23,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:23,581 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:23,581 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:08:23,581 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:23,587 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:08:23,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:08:23,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:23,606 INFO L87 Difference]: Start difference. First operand 175 states. Second operand 2 states. [2019-09-16 17:08:23,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:23,636 INFO L93 Difference]: Finished difference Result 135 states and 159 transitions. [2019-09-16 17:08:23,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:08:23,638 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-16 17:08:23,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:23,651 INFO L225 Difference]: With dead ends: 135 [2019-09-16 17:08:23,652 INFO L226 Difference]: Without dead ends: 124 [2019-09-16 17:08:23,654 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:23,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-09-16 17:08:23,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2019-09-16 17:08:23,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-09-16 17:08:23,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 147 transitions. [2019-09-16 17:08:23,712 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 147 transitions. Word has length 51 [2019-09-16 17:08:23,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:23,712 INFO L475 AbstractCegarLoop]: Abstraction has 124 states and 147 transitions. [2019-09-16 17:08:23,713 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:08:23,713 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 147 transitions. [2019-09-16 17:08:23,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-16 17:08:23,720 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:23,721 INFO L407 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] [2019-09-16 17:08:23,721 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:23,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:23,722 INFO L82 PathProgramCache]: Analyzing trace with hash 364968758, now seen corresponding path program 1 times [2019-09-16 17:08:23,723 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:23,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:23,727 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:23,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:23,727 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:23,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:23,922 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:23,922 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:08:23,923 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:23,926 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:08:23,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:08:23,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:08:23,928 INFO L87 Difference]: Start difference. First operand 124 states and 147 transitions. Second operand 3 states. [2019-09-16 17:08:23,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:23,957 INFO L93 Difference]: Finished difference Result 115 states and 135 transitions. [2019-09-16 17:08:23,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:08:23,959 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-16 17:08:23,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:23,964 INFO L225 Difference]: With dead ends: 115 [2019-09-16 17:08:23,965 INFO L226 Difference]: Without dead ends: 115 [2019-09-16 17:08:23,965 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:08:23,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-09-16 17:08:23,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2019-09-16 17:08:23,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-09-16 17:08:23,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 135 transitions. [2019-09-16 17:08:23,992 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 135 transitions. Word has length 52 [2019-09-16 17:08:23,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:23,992 INFO L475 AbstractCegarLoop]: Abstraction has 115 states and 135 transitions. [2019-09-16 17:08:23,993 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:08:23,993 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 135 transitions. [2019-09-16 17:08:23,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-16 17:08:23,998 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:24,000 INFO L407 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] [2019-09-16 17:08:24,000 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:24,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:24,001 INFO L82 PathProgramCache]: Analyzing trace with hash 604582976, now seen corresponding path program 1 times [2019-09-16 17:08:24,001 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:24,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:24,004 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:24,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:24,005 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:24,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:24,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:24,132 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:24,132 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:08:24,132 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:24,133 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:08:24,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:08:24,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:08:24,133 INFO L87 Difference]: Start difference. First operand 115 states and 135 transitions. Second operand 3 states. [2019-09-16 17:08:24,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:24,145 INFO L93 Difference]: Finished difference Result 115 states and 134 transitions. [2019-09-16 17:08:24,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:08:24,146 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2019-09-16 17:08:24,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:24,148 INFO L225 Difference]: With dead ends: 115 [2019-09-16 17:08:24,148 INFO L226 Difference]: Without dead ends: 115 [2019-09-16 17:08:24,149 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:08:24,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-09-16 17:08:24,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2019-09-16 17:08:24,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-09-16 17:08:24,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 134 transitions. [2019-09-16 17:08:24,158 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 134 transitions. Word has length 56 [2019-09-16 17:08:24,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:24,158 INFO L475 AbstractCegarLoop]: Abstraction has 115 states and 134 transitions. [2019-09-16 17:08:24,158 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:08:24,159 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 134 transitions. [2019-09-16 17:08:24,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-09-16 17:08:24,163 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:24,164 INFO L407 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] [2019-09-16 17:08:24,164 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:24,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:24,164 INFO L82 PathProgramCache]: Analyzing trace with hash -781962313, now seen corresponding path program 1 times [2019-09-16 17:08:24,165 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:24,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:24,167 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:24,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:24,167 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:24,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:24,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:24,301 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:24,301 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:08:24,301 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:24,302 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:08:24,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:08:24,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:08:24,302 INFO L87 Difference]: Start difference. First operand 115 states and 134 transitions. Second operand 6 states. [2019-09-16 17:08:24,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:24,549 INFO L93 Difference]: Finished difference Result 194 states and 230 transitions. [2019-09-16 17:08:24,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:08:24,550 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 69 [2019-09-16 17:08:24,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:24,554 INFO L225 Difference]: With dead ends: 194 [2019-09-16 17:08:24,554 INFO L226 Difference]: Without dead ends: 194 [2019-09-16 17:08:24,554 INFO L636 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 [2019-09-16 17:08:24,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2019-09-16 17:08:24,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 192. [2019-09-16 17:08:24,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2019-09-16 17:08:24,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 228 transitions. [2019-09-16 17:08:24,581 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 228 transitions. Word has length 69 [2019-09-16 17:08:24,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:24,582 INFO L475 AbstractCegarLoop]: Abstraction has 192 states and 228 transitions. [2019-09-16 17:08:24,582 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:08:24,583 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 228 transitions. [2019-09-16 17:08:24,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-09-16 17:08:24,589 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:24,589 INFO L407 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] [2019-09-16 17:08:24,589 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:24,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:24,590 INFO L82 PathProgramCache]: Analyzing trace with hash 737122587, now seen corresponding path program 1 times [2019-09-16 17:08:24,590 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:24,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:24,593 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:24,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:24,594 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:24,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:24,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:24,758 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:24,758 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:08:24,758 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:24,759 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:08:24,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:08:24,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:08:24,759 INFO L87 Difference]: Start difference. First operand 192 states and 228 transitions. Second operand 7 states. [2019-09-16 17:08:25,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:25,095 INFO L93 Difference]: Finished difference Result 126 states and 139 transitions. [2019-09-16 17:08:25,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:08:25,096 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 73 [2019-09-16 17:08:25,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:25,097 INFO L225 Difference]: With dead ends: 126 [2019-09-16 17:08:25,097 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:08:25,097 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-09-16 17:08:25,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:08:25,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:08:25,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:08:25,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:08:25,098 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2019-09-16 17:08:25,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:25,099 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:08:25,099 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:08:25,099 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:08:25,099 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:08:25,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:08:25 BoogieIcfgContainer [2019-09-16 17:08:25,105 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:08:25,108 INFO L168 Benchmark]: Toolchain (without parser) took 4256.26 ms. Allocated memory was 138.9 MB in the beginning and 264.2 MB in the end (delta: 125.3 MB). Free memory was 85.5 MB in the beginning and 171.9 MB in the end (delta: -86.4 MB). Peak memory consumption was 38.9 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:25,109 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 104.8 MB in the beginning and 104.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:08:25,110 INFO L168 Benchmark]: CACSL2BoogieTranslator took 775.61 ms. Allocated memory was 138.9 MB in the beginning and 198.7 MB in the end (delta: 59.8 MB). Free memory was 85.3 MB in the beginning and 163.9 MB in the end (delta: -78.5 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:25,111 INFO L168 Benchmark]: Boogie Preprocessor took 136.46 ms. Allocated memory is still 198.7 MB. Free memory was 163.9 MB in the beginning and 157.4 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:25,112 INFO L168 Benchmark]: RCFGBuilder took 1338.74 ms. Allocated memory was 198.7 MB in the beginning and 221.2 MB in the end (delta: 22.5 MB). Free memory was 157.4 MB in the beginning and 190.2 MB in the end (delta: -32.7 MB). Peak memory consumption was 89.9 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:25,113 INFO L168 Benchmark]: TraceAbstraction took 2001.16 ms. Allocated memory was 221.2 MB in the beginning and 264.2 MB in the end (delta: 43.0 MB). Free memory was 190.2 MB in the beginning and 171.9 MB in the end (delta: 18.3 MB). Peak memory consumption was 61.3 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:25,117 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 138.9 MB. Free memory was 104.8 MB in the beginning and 104.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 775.61 ms. Allocated memory was 138.9 MB in the beginning and 198.7 MB in the end (delta: 59.8 MB). Free memory was 85.3 MB in the beginning and 163.9 MB in the end (delta: -78.5 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 136.46 ms. Allocated memory is still 198.7 MB. Free memory was 163.9 MB in the beginning and 157.4 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1338.74 ms. Allocated memory was 198.7 MB in the beginning and 221.2 MB in the end (delta: 22.5 MB). Free memory was 157.4 MB in the beginning and 190.2 MB in the end (delta: -32.7 MB). Peak memory consumption was 89.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2001.16 ms. Allocated memory was 221.2 MB in the beginning and 264.2 MB in the end (delta: 43.0 MB). Free memory was 190.2 MB in the beginning and 171.9 MB in the end (delta: 18.3 MB). Peak memory consumption was 61.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 317]: 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, 236 locations, 1 error locations. SAFE Result, 1.9s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 641 SDtfs, 288 SDslu, 724 SDs, 0 SdLazy, 243 SolverSat, 55 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=192occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 301 NumberOfCodeBlocks, 301 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 296 ConstructedInterpolants, 0 QuantifiedInterpolants, 32144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...