java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product04.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:08:51,901 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:08:51,904 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:08:51,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:08:51,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:08:51,923 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:08:51,925 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:08:51,938 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:08:51,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:08:51,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:08:51,944 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:08:51,947 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:08:51,947 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:08:51,948 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:08:51,949 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:08:51,950 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:08:51,951 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:08:51,952 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:08:51,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:08:51,955 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:08:51,956 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:08:51,957 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:08:51,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:08:51,959 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:08:51,961 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:08:51,961 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:08:51,962 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:08:51,963 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:08:51,963 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:08:51,964 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:08:51,964 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:08:51,965 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:08:51,966 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:08:51,966 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:08:51,967 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:08:51,967 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:08:51,968 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:08:51,968 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:08:51,969 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:08:51,969 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:08:51,970 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:08:51,971 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 17:08:51,985 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:08:51,985 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:08:51,985 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:08:51,986 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:08:51,986 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:08:51,987 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:08:51,987 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:08:51,987 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:08:51,987 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:08:51,987 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:08:51,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:08:51,988 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:08:51,989 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:08:51,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:08:51,989 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:08:51,989 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:08:51,989 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:08:51,990 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:08:51,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:08:51,990 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:08:51,990 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:08:51,990 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:08:51,991 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:08:51,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:08:51,991 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:08:51,991 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:08:51,991 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:08:51,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:08:51,992 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:08:51,992 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:08:52,020 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:08:52,033 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:08:52,036 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:08:52,038 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:08:52,038 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:08:52,039 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product04.cil.c [2019-09-16 17:08:52,117 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1338b8c8e/cc6e7ee9c0464b62b1a9ce75446defde/FLAGf3216debf [2019-09-16 17:08:52,647 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:08:52,648 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product04.cil.c [2019-09-16 17:08:52,661 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1338b8c8e/cc6e7ee9c0464b62b1a9ce75446defde/FLAGf3216debf [2019-09-16 17:08:53,019 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1338b8c8e/cc6e7ee9c0464b62b1a9ce75446defde [2019-09-16 17:08:53,031 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:08:53,032 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:08:53,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:08:53,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:08:53,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:08:53,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:08:53" (1/1) ... [2019-09-16 17:08:53,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bbefcd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:53, skipping insertion in model container [2019-09-16 17:08:53,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:08:53" (1/1) ... [2019-09-16 17:08:53,050 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:08:53,116 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:08:53,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:08:53,588 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:08:53,664 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:08:53,698 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:08:53,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:53 WrapperNode [2019-09-16 17:08:53,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:08:53,699 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:08:53,700 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:08:53,700 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:08:53,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:53" (1/1) ... [2019-09-16 17:08:53,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:53" (1/1) ... [2019-09-16 17:08:53,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:53" (1/1) ... [2019-09-16 17:08:53,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:53" (1/1) ... [2019-09-16 17:08:53,777 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:53" (1/1) ... [2019-09-16 17:08:53,794 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:53" (1/1) ... [2019-09-16 17:08:53,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:53" (1/1) ... [2019-09-16 17:08:53,814 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:08:53,815 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:08:53,815 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:08:53,815 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:08:53,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:53" (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 17:08:53,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:08:53,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:08:53,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:08:53,899 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:08:53,899 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:08:53,899 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:08:53,899 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:08:53,899 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:08:53,899 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:08:53,900 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:08:53,900 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:08:53,900 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:08:53,901 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:08:53,901 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:08:53,902 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:08:53,903 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:08:53,903 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:08:53,903 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:08:53,904 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:08:53,904 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:08:53,904 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:08:53,904 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:08:53,904 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:08:53,905 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:08:53,905 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:08:53,905 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-16 17:08:53,906 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-16 17:08:53,906 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:08:53,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:08:53,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:08:53,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:08:53,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:08:53,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:08:53,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:08:53,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:08:53,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-09-16 17:08:53,908 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:08:53,908 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:08:53,908 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:08:53,908 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:08:53,909 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:08:53,909 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:08:53,909 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:08:53,909 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:08:53,909 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:08:53,910 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:08:53,910 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:08:53,910 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:08:53,910 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:08:53,910 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:08:53,910 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:08:53,911 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:08:53,911 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:08:53,911 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:08:53,912 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:08:53,912 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:08:53,912 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:08:53,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:08:53,912 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:08:53,913 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:08:53,913 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:08:53,913 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-16 17:08:53,913 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-16 17:08:53,913 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-09-16 17:08:53,914 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:08:53,914 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:08:53,914 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:08:53,915 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:08:53,915 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:08:53,915 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:08:53,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:08:53,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:08:53,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:08:53,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:08:53,917 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:08:53,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:08:53,917 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:08:53,917 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:08:53,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:08:53,918 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:08:53,918 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:08:53,918 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:08:53,918 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:08:53,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:08:53,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:08:53,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:08:55,026 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:08:55,027 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:08:55,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:08:55 BoogieIcfgContainer [2019-09-16 17:08:55,029 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:08:55,030 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:08:55,030 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:08:55,033 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:08:55,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:08:53" (1/3) ... [2019-09-16 17:08:55,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17676b16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:08:55, skipping insertion in model container [2019-09-16 17:08:55,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:53" (2/3) ... [2019-09-16 17:08:55,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17676b16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:08:55, skipping insertion in model container [2019-09-16 17:08:55,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:08:55" (3/3) ... [2019-09-16 17:08:55,040 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product04.cil.c [2019-09-16 17:08:55,050 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:08:55,061 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:08:55,077 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:08:55,103 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:08:55,103 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:08:55,103 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:08:55,103 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:08:55,104 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:08:55,104 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:08:55,104 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:08:55,104 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:08:55,125 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states. [2019-09-16 17:08:55,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-16 17:08:55,156 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:55,157 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] [2019-09-16 17:08:55,159 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:55,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:55,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1078669538, now seen corresponding path program 1 times [2019-09-16 17:08:55,170 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:55,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:55,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:55,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:55,225 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:55,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:55,547 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 17:08:55,549 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:55,549 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:08:55,550 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:55,555 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:08:55,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:08:55,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:55,573 INFO L87 Difference]: Start difference. First operand 137 states. Second operand 2 states. [2019-09-16 17:08:55,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:55,595 INFO L93 Difference]: Finished difference Result 105 states and 120 transitions. [2019-09-16 17:08:55,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:08:55,597 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-16 17:08:55,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:55,608 INFO L225 Difference]: With dead ends: 105 [2019-09-16 17:08:55,609 INFO L226 Difference]: Without dead ends: 94 [2019-09-16 17:08:55,611 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 17:08:55,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2019-09-16 17:08:55,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2019-09-16 17:08:55,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-09-16 17:08:55,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 108 transitions. [2019-09-16 17:08:55,662 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 108 transitions. Word has length 46 [2019-09-16 17:08:55,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:55,663 INFO L475 AbstractCegarLoop]: Abstraction has 94 states and 108 transitions. [2019-09-16 17:08:55,663 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:08:55,663 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 108 transitions. [2019-09-16 17:08:55,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-16 17:08:55,666 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:55,667 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] [2019-09-16 17:08:55,667 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:55,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:55,668 INFO L82 PathProgramCache]: Analyzing trace with hash -352011727, now seen corresponding path program 1 times [2019-09-16 17:08:55,668 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:55,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:55,671 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:55,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:55,671 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:55,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:55,770 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 17:08:55,771 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:55,771 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:08:55,771 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:55,773 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:08:55,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:08:55,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:08:55,774 INFO L87 Difference]: Start difference. First operand 94 states and 108 transitions. Second operand 3 states. [2019-09-16 17:08:55,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:55,787 INFO L93 Difference]: Finished difference Result 85 states and 96 transitions. [2019-09-16 17:08:55,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:08:55,788 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-16 17:08:55,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:55,790 INFO L225 Difference]: With dead ends: 85 [2019-09-16 17:08:55,790 INFO L226 Difference]: Without dead ends: 85 [2019-09-16 17:08:55,791 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 17:08:55,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-09-16 17:08:55,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2019-09-16 17:08:55,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-09-16 17:08:55,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 96 transitions. [2019-09-16 17:08:55,802 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 96 transitions. Word has length 47 [2019-09-16 17:08:55,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:55,802 INFO L475 AbstractCegarLoop]: Abstraction has 85 states and 96 transitions. [2019-09-16 17:08:55,802 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:08:55,803 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 96 transitions. [2019-09-16 17:08:55,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-16 17:08:55,805 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:55,805 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 17:08:55,805 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:55,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:55,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1517693929, now seen corresponding path program 1 times [2019-09-16 17:08:55,806 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:55,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:55,809 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:55,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:55,809 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:55,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:55,995 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 17:08:55,995 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:55,995 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:08:55,995 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:55,996 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:08:55,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:08:55,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:08:55,997 INFO L87 Difference]: Start difference. First operand 85 states and 96 transitions. Second operand 7 states. [2019-09-16 17:08:56,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:56,339 INFO L93 Difference]: Finished difference Result 196 states and 232 transitions. [2019-09-16 17:08:56,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 17:08:56,340 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-16 17:08:56,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:56,343 INFO L225 Difference]: With dead ends: 196 [2019-09-16 17:08:56,343 INFO L226 Difference]: Without dead ends: 196 [2019-09-16 17:08:56,344 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-16 17:08:56,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2019-09-16 17:08:56,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 172. [2019-09-16 17:08:56,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2019-09-16 17:08:56,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 204 transitions. [2019-09-16 17:08:56,386 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 204 transitions. Word has length 52 [2019-09-16 17:08:56,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:56,390 INFO L475 AbstractCegarLoop]: Abstraction has 172 states and 204 transitions. [2019-09-16 17:08:56,390 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:08:56,390 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 204 transitions. [2019-09-16 17:08:56,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-09-16 17:08:56,395 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:56,395 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] [2019-09-16 17:08:56,395 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:56,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:56,396 INFO L82 PathProgramCache]: Analyzing trace with hash 818013324, now seen corresponding path program 1 times [2019-09-16 17:08:56,396 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:56,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:56,398 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:56,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:56,399 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:56,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:56,593 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 17:08:56,593 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:56,593 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-16 17:08:56,594 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:56,595 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-16 17:08:56,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-16 17:08:56,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-16 17:08:56,596 INFO L87 Difference]: Start difference. First operand 172 states and 204 transitions. Second operand 10 states. [2019-09-16 17:08:57,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:57,124 INFO L93 Difference]: Finished difference Result 420 states and 523 transitions. [2019-09-16 17:08:57,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-16 17:08:57,125 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 55 [2019-09-16 17:08:57,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:57,130 INFO L225 Difference]: With dead ends: 420 [2019-09-16 17:08:57,130 INFO L226 Difference]: Without dead ends: 420 [2019-09-16 17:08:57,131 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-09-16 17:08:57,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2019-09-16 17:08:57,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 408. [2019-09-16 17:08:57,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 408 states. [2019-09-16 17:08:57,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 502 transitions. [2019-09-16 17:08:57,196 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 502 transitions. Word has length 55 [2019-09-16 17:08:57,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:57,197 INFO L475 AbstractCegarLoop]: Abstraction has 408 states and 502 transitions. [2019-09-16 17:08:57,197 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-16 17:08:57,197 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 502 transitions. [2019-09-16 17:08:57,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-16 17:08:57,209 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:57,209 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] [2019-09-16 17:08:57,210 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:57,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:57,210 INFO L82 PathProgramCache]: Analyzing trace with hash 514323110, now seen corresponding path program 1 times [2019-09-16 17:08:57,210 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:57,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:57,213 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:57,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:57,214 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:57,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:57,289 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 17:08:57,290 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:57,290 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:08:57,290 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:57,291 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:08:57,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:08:57,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:08:57,293 INFO L87 Difference]: Start difference. First operand 408 states and 502 transitions. Second operand 3 states. [2019-09-16 17:08:57,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:57,310 INFO L93 Difference]: Finished difference Result 366 states and 428 transitions. [2019-09-16 17:08:57,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:08:57,312 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2019-09-16 17:08:57,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:57,315 INFO L225 Difference]: With dead ends: 366 [2019-09-16 17:08:57,316 INFO L226 Difference]: Without dead ends: 366 [2019-09-16 17:08:57,318 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 17:08:57,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2019-09-16 17:08:57,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2019-09-16 17:08:57,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2019-09-16 17:08:57,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 428 transitions. [2019-09-16 17:08:57,343 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 428 transitions. Word has length 59 [2019-09-16 17:08:57,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:57,344 INFO L475 AbstractCegarLoop]: Abstraction has 366 states and 428 transitions. [2019-09-16 17:08:57,344 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:08:57,344 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 428 transitions. [2019-09-16 17:08:57,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-16 17:08:57,347 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:57,348 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:08:57,348 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:57,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:57,349 INFO L82 PathProgramCache]: Analyzing trace with hash -1399137902, now seen corresponding path program 1 times [2019-09-16 17:08:57,349 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:57,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:57,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:57,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:57,353 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:57,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:57,490 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-09-16 17:08:57,490 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:57,491 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:08:57,491 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:57,492 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:08:57,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:08:57,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:08:57,493 INFO L87 Difference]: Start difference. First operand 366 states and 428 transitions. Second operand 7 states. [2019-09-16 17:08:57,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:57,838 INFO L93 Difference]: Finished difference Result 369 states and 429 transitions. [2019-09-16 17:08:57,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:08:57,839 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 89 [2019-09-16 17:08:57,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:57,840 INFO L225 Difference]: With dead ends: 369 [2019-09-16 17:08:57,840 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:08:57,840 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 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 17:08:57,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:08:57,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:08:57,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:08:57,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:08:57,843 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 89 [2019-09-16 17:08:57,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:57,844 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:08:57,844 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:08:57,844 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:08:57,844 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:08:57,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:08:57 BoogieIcfgContainer [2019-09-16 17:08:57,853 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:08:57,857 INFO L168 Benchmark]: Toolchain (without parser) took 4822.77 ms. Allocated memory was 138.9 MB in the beginning and 265.3 MB in the end (delta: 126.4 MB). Free memory was 85.4 MB in the beginning and 97.2 MB in the end (delta: -11.8 MB). Peak memory consumption was 114.5 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:57,857 INFO L168 Benchmark]: CDTParser took 2.33 ms. Allocated memory is still 138.9 MB. Free memory is still 104.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-16 17:08:57,859 INFO L168 Benchmark]: CACSL2BoogieTranslator took 665.79 ms. Allocated memory was 138.9 MB in the beginning and 198.2 MB in the end (delta: 59.2 MB). Free memory was 85.0 MB in the beginning and 165.7 MB in the end (delta: -80.7 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:57,860 INFO L168 Benchmark]: Boogie Preprocessor took 114.67 ms. Allocated memory is still 198.2 MB. Free memory was 165.7 MB in the beginning and 161.2 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:57,861 INFO L168 Benchmark]: RCFGBuilder took 1214.46 ms. Allocated memory is still 198.2 MB. Free memory was 161.2 MB in the beginning and 81.2 MB in the end (delta: 80.0 MB). Peak memory consumption was 80.0 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:57,863 INFO L168 Benchmark]: TraceAbstraction took 2822.87 ms. Allocated memory was 198.2 MB in the beginning and 265.3 MB in the end (delta: 67.1 MB). Free memory was 81.2 MB in the beginning and 97.2 MB in the end (delta: -16.0 MB). Peak memory consumption was 51.1 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:57,872 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.33 ms. Allocated memory is still 138.9 MB. Free memory is still 104.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 665.79 ms. Allocated memory was 138.9 MB in the beginning and 198.2 MB in the end (delta: 59.2 MB). Free memory was 85.0 MB in the beginning and 165.7 MB in the end (delta: -80.7 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.67 ms. Allocated memory is still 198.2 MB. Free memory was 165.7 MB in the beginning and 161.2 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1214.46 ms. Allocated memory is still 198.2 MB. Free memory was 161.2 MB in the beginning and 81.2 MB in the end (delta: 80.0 MB). Peak memory consumption was 80.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2822.87 ms. Allocated memory was 198.2 MB in the beginning and 265.3 MB in the end (delta: 67.1 MB). Free memory was 81.2 MB in the beginning and 97.2 MB in the end (delta: -16.0 MB). Peak memory consumption was 51.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 838]: 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 36 procedures, 204 locations, 1 error locations. SAFE Result, 2.7s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 585 SDtfs, 401 SDslu, 1242 SDs, 0 SdLazy, 543 SolverSat, 76 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=408occurred 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: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 36 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 348 NumberOfCodeBlocks, 348 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 342 ConstructedInterpolants, 0 QuantifiedInterpolants, 41424 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 24/24 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...