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 0.1.24-112bae1 [2019-09-10 02:49:51,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:49:52,001 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:49:52,019 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:49:52,019 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:49:52,021 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:49:52,023 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:49:52,036 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:49:52,038 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:49:52,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:49:52,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:49:52,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:49:52,042 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:49:52,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:49:52,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:49:52,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:49:52,046 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:49:52,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:49:52,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:49:52,051 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:49:52,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:49:52,053 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:49:52,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:49:52,055 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:49:52,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:49:52,057 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:49:52,057 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:49:52,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:49:52,059 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:49:52,059 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:49:52,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:49:52,060 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:49:52,061 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:49:52,062 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:49:52,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:49:52,063 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:49:52,064 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:49:52,064 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:49:52,064 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:49:52,065 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:49:52,066 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:49:52,067 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 02:49:52,086 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:49:52,089 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:49:52,089 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:49:52,090 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:49:52,090 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:49:52,091 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:49:52,091 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:49:52,092 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:49:52,092 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:49:52,092 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:49:52,093 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:49:52,094 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:49:52,094 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:49:52,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:49:52,095 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:49:52,095 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:49:52,095 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:49:52,095 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:49:52,096 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:49:52,096 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:49:52,097 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:49:52,097 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:49:52,097 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:49:52,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:49:52,098 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:49:52,098 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:49:52,098 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:49:52,098 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:49:52,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:49:52,099 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:49:52,155 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:49:52,168 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:49:52,171 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:49:52,173 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:49:52,173 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:49:52,174 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product04.cil.c [2019-09-10 02:49:52,236 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6e71a04a/a6b52e6b47924d2f8f0fc9a1d281a97e/FLAGeffa60804 [2019-09-10 02:49:52,670 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:49:52,671 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product04.cil.c [2019-09-10 02:49:52,692 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6e71a04a/a6b52e6b47924d2f8f0fc9a1d281a97e/FLAGeffa60804 [2019-09-10 02:49:52,998 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6e71a04a/a6b52e6b47924d2f8f0fc9a1d281a97e [2019-09-10 02:49:53,007 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:49:53,008 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:49:53,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:49:53,009 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:49:53,013 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:49:53,014 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:49:52" (1/1) ... [2019-09-10 02:49:53,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40945f09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:53, skipping insertion in model container [2019-09-10 02:49:53,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:49:52" (1/1) ... [2019-09-10 02:49:53,025 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:49:53,066 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:49:53,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:49:53,469 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:49:53,603 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:49:53,643 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:49:53,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:53 WrapperNode [2019-09-10 02:49:53,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:49:53,644 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:49:53,644 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:49:53,644 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:49:53,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:53" (1/1) ... [2019-09-10 02:49:53,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:53" (1/1) ... [2019-09-10 02:49:53,704 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:53" (1/1) ... [2019-09-10 02:49:53,705 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:53" (1/1) ... [2019-09-10 02:49:53,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:53" (1/1) ... [2019-09-10 02:49:53,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:53" (1/1) ... [2019-09-10 02:49:53,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:53" (1/1) ... [2019-09-10 02:49:53,800 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:49:53,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:49:53,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:49:53,801 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:49:53,802 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:53" (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 [2019-09-10 02:49:53,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:49:53,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:49:53,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:49:53,886 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:49:53,886 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:49:53,887 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:49:53,887 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:49:53,887 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:49:53,887 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:49:53,887 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:49:53,888 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:49:53,888 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:49:53,888 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:49:53,889 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:49:53,890 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:49:53,890 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:49:53,891 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:49:53,891 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:49:53,891 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:49:53,891 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:49:53,891 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:49:53,892 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:49:53,892 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:49:53,892 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:49:53,893 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:49:53,893 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-10 02:49:53,893 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-10 02:49:53,894 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:49:53,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:49:53,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:49:53,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:49:53,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:49:53,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:49:53,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:49:53,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:49:53,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-09-10 02:49:53,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:49:53,896 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:49:53,896 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:49:53,896 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:49:53,896 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:49:53,897 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:49:53,897 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:49:53,897 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:49:53,897 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:49:53,897 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:49:53,897 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:49:53,898 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:49:53,898 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:49:53,898 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:49:53,898 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:49:53,899 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:49:53,899 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:49:53,899 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:49:53,899 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:49:53,899 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:49:53,899 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:49:53,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:49:53,900 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:49:53,900 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:49:53,900 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:49:53,900 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-10 02:49:53,900 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-10 02:49:53,900 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-09-10 02:49:53,901 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:49:53,901 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:49:53,901 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:49:53,901 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:49:53,902 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:49:53,902 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:49:53,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:49:53,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:49:53,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:49:53,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:49:53,903 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:49:53,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:49:53,903 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:49:53,904 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:49:53,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:49:53,904 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:49:53,904 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:49:53,905 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:49:53,905 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:49:53,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:49:53,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:49:53,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:49:54,996 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:49:54,997 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:49:54,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:49:54 BoogieIcfgContainer [2019-09-10 02:49:54,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:49:55,000 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:49:55,000 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:49:55,004 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:49:55,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:49:52" (1/3) ... [2019-09-10 02:49:55,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fc30ada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:49:55, skipping insertion in model container [2019-09-10 02:49:55,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:53" (2/3) ... [2019-09-10 02:49:55,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fc30ada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:49:55, skipping insertion in model container [2019-09-10 02:49:55,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:49:54" (3/3) ... [2019-09-10 02:49:55,008 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product04.cil.c [2019-09-10 02:49:55,036 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:49:55,045 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:49:55,063 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:49:55,091 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:49:55,091 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:49:55,091 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:49:55,092 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:49:55,092 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:49:55,092 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:49:55,092 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:49:55,093 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:49:55,113 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states. [2019-09-10 02:49:55,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-10 02:49:55,129 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:55,130 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:55,135 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:55,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:55,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1078669538, now seen corresponding path program 1 times [2019-09-10 02:49:55,144 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:55,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:55,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:55,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:55,195 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:55,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:55,480 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:55,480 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:49:55,481 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:55,486 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:49:55,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:49:55,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:49:55,505 INFO L87 Difference]: Start difference. First operand 137 states. Second operand 2 states. [2019-09-10 02:49:55,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:55,532 INFO L93 Difference]: Finished difference Result 105 states and 120 transitions. [2019-09-10 02:49:55,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:49:55,533 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-10 02:49:55,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:55,544 INFO L225 Difference]: With dead ends: 105 [2019-09-10 02:49:55,545 INFO L226 Difference]: Without dead ends: 94 [2019-09-10 02:49:55,547 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:49:55,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2019-09-10 02:49:55,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2019-09-10 02:49:55,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-09-10 02:49:55,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 108 transitions. [2019-09-10 02:49:55,618 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 108 transitions. Word has length 46 [2019-09-10 02:49:55,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:55,619 INFO L475 AbstractCegarLoop]: Abstraction has 94 states and 108 transitions. [2019-09-10 02:49:55,619 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:49:55,619 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 108 transitions. [2019-09-10 02:49:55,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-10 02:49:55,623 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:55,624 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:55,624 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:55,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:55,625 INFO L82 PathProgramCache]: Analyzing trace with hash -352011727, now seen corresponding path program 1 times [2019-09-10 02:49:55,625 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:55,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:55,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:55,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:55,628 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:55,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:55,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:55,769 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:55,769 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:49:55,770 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:55,771 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:49:55,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:49:55,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:49:55,772 INFO L87 Difference]: Start difference. First operand 94 states and 108 transitions. Second operand 3 states. [2019-09-10 02:49:55,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:55,785 INFO L93 Difference]: Finished difference Result 85 states and 96 transitions. [2019-09-10 02:49:55,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:49:55,786 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-10 02:49:55,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:55,788 INFO L225 Difference]: With dead ends: 85 [2019-09-10 02:49:55,788 INFO L226 Difference]: Without dead ends: 85 [2019-09-10 02:49:55,789 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:49:55,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-09-10 02:49:55,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2019-09-10 02:49:55,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-09-10 02:49:55,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 96 transitions. [2019-09-10 02:49:55,799 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 96 transitions. Word has length 47 [2019-09-10 02:49:55,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:55,800 INFO L475 AbstractCegarLoop]: Abstraction has 85 states and 96 transitions. [2019-09-10 02:49:55,800 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:49:55,800 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 96 transitions. [2019-09-10 02:49:55,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-10 02:49:55,802 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:55,802 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:55,803 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:55,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:55,803 INFO L82 PathProgramCache]: Analyzing trace with hash -1517693929, now seen corresponding path program 1 times [2019-09-10 02:49:55,803 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:55,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:55,805 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:55,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:55,805 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:55,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:56,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:56,022 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:56,022 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:49:56,022 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:56,022 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:49:56,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:49:56,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:49:56,025 INFO L87 Difference]: Start difference. First operand 85 states and 96 transitions. Second operand 7 states. [2019-09-10 02:49:56,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:56,434 INFO L93 Difference]: Finished difference Result 196 states and 232 transitions. [2019-09-10 02:49:56,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:49:56,434 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-10 02:49:56,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:56,440 INFO L225 Difference]: With dead ends: 196 [2019-09-10 02:49:56,440 INFO L226 Difference]: Without dead ends: 196 [2019-09-10 02:49:56,441 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-10 02:49:56,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2019-09-10 02:49:56,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 172. [2019-09-10 02:49:56,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2019-09-10 02:49:56,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 204 transitions. [2019-09-10 02:49:56,485 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 204 transitions. Word has length 52 [2019-09-10 02:49:56,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:56,485 INFO L475 AbstractCegarLoop]: Abstraction has 172 states and 204 transitions. [2019-09-10 02:49:56,486 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:49:56,486 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 204 transitions. [2019-09-10 02:49:56,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-09-10 02:49:56,490 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:56,490 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:56,491 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:56,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:56,491 INFO L82 PathProgramCache]: Analyzing trace with hash 818013324, now seen corresponding path program 1 times [2019-09-10 02:49:56,491 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:56,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:56,492 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:56,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:56,493 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:56,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:56,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:56,694 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:56,695 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-10 02:49:56,695 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:56,695 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 02:49:56,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 02:49:56,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-10 02:49:56,696 INFO L87 Difference]: Start difference. First operand 172 states and 204 transitions. Second operand 10 states. [2019-09-10 02:49:57,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:57,336 INFO L93 Difference]: Finished difference Result 420 states and 523 transitions. [2019-09-10 02:49:57,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-10 02:49:57,339 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 55 [2019-09-10 02:49:57,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:57,347 INFO L225 Difference]: With dead ends: 420 [2019-09-10 02:49:57,348 INFO L226 Difference]: Without dead ends: 420 [2019-09-10 02:49:57,351 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-09-10 02:49:57,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2019-09-10 02:49:57,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 408. [2019-09-10 02:49:57,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 408 states. [2019-09-10 02:49:57,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 502 transitions. [2019-09-10 02:49:57,399 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 502 transitions. Word has length 55 [2019-09-10 02:49:57,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:57,399 INFO L475 AbstractCegarLoop]: Abstraction has 408 states and 502 transitions. [2019-09-10 02:49:57,399 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 02:49:57,400 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 502 transitions. [2019-09-10 02:49:57,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-10 02:49:57,403 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:57,403 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:57,404 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:57,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:57,404 INFO L82 PathProgramCache]: Analyzing trace with hash 514323110, now seen corresponding path program 1 times [2019-09-10 02:49:57,404 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:57,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:57,405 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:57,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:57,406 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:57,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:57,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:57,468 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:57,468 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:49:57,469 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:57,470 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:49:57,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:49:57,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:49:57,471 INFO L87 Difference]: Start difference. First operand 408 states and 502 transitions. Second operand 3 states. [2019-09-10 02:49:57,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:57,485 INFO L93 Difference]: Finished difference Result 366 states and 428 transitions. [2019-09-10 02:49:57,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:49:57,486 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2019-09-10 02:49:57,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:57,489 INFO L225 Difference]: With dead ends: 366 [2019-09-10 02:49:57,490 INFO L226 Difference]: Without dead ends: 366 [2019-09-10 02:49:57,490 INFO L628 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 [2019-09-10 02:49:57,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2019-09-10 02:49:57,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2019-09-10 02:49:57,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2019-09-10 02:49:57,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 428 transitions. [2019-09-10 02:49:57,528 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 428 transitions. Word has length 59 [2019-09-10 02:49:57,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:57,528 INFO L475 AbstractCegarLoop]: Abstraction has 366 states and 428 transitions. [2019-09-10 02:49:57,528 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:49:57,528 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 428 transitions. [2019-09-10 02:49:57,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-10 02:49:57,536 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:57,537 INFO L399 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] [2019-09-10 02:49:57,538 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:57,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:57,538 INFO L82 PathProgramCache]: Analyzing trace with hash -1399137902, now seen corresponding path program 1 times [2019-09-10 02:49:57,538 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:57,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:57,540 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:57,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:57,540 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:57,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:57,676 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-09-10 02:49:57,677 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:57,677 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:49:57,677 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:57,677 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:49:57,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:49:57,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:49:57,678 INFO L87 Difference]: Start difference. First operand 366 states and 428 transitions. Second operand 7 states. [2019-09-10 02:49:58,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:58,006 INFO L93 Difference]: Finished difference Result 369 states and 429 transitions. [2019-09-10 02:49:58,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:49:58,007 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 89 [2019-09-10 02:49:58,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:58,007 INFO L225 Difference]: With dead ends: 369 [2019-09-10 02:49:58,008 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:49:58,008 INFO L628 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 [2019-09-10 02:49:58,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:49:58,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:49:58,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:49:58,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:49:58,009 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 89 [2019-09-10 02:49:58,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:58,009 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:49:58,010 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:49:58,010 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:49:58,010 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:49:58,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:49:58 BoogieIcfgContainer [2019-09-10 02:49:58,015 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:49:58,018 INFO L168 Benchmark]: Toolchain (without parser) took 5009.11 ms. Allocated memory was 136.3 MB in the beginning and 254.8 MB in the end (delta: 118.5 MB). Free memory was 91.4 MB in the beginning and 89.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 120.5 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:58,019 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 136.3 MB. Free memory was 110.2 MB in the beginning and 110.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:49:58,020 INFO L168 Benchmark]: CACSL2BoogieTranslator took 634.72 ms. Allocated memory was 136.3 MB in the beginning and 204.5 MB in the end (delta: 68.2 MB). Free memory was 91.2 MB in the beginning and 172.6 MB in the end (delta: -81.5 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:58,021 INFO L168 Benchmark]: Boogie Preprocessor took 156.13 ms. Allocated memory is still 204.5 MB. Free memory was 172.6 MB in the beginning and 168.1 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:58,022 INFO L168 Benchmark]: RCFGBuilder took 1198.26 ms. Allocated memory is still 204.5 MB. Free memory was 168.1 MB in the beginning and 88.4 MB in the end (delta: 79.7 MB). Peak memory consumption was 79.7 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:58,023 INFO L168 Benchmark]: TraceAbstraction took 3015.76 ms. Allocated memory was 204.5 MB in the beginning and 254.8 MB in the end (delta: 50.3 MB). Free memory was 88.4 MB in the beginning and 89.4 MB in the end (delta: -968.4 kB). Peak memory consumption was 49.4 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:58,027 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 136.3 MB. Free memory was 110.2 MB in the beginning and 110.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 634.72 ms. Allocated memory was 136.3 MB in the beginning and 204.5 MB in the end (delta: 68.2 MB). Free memory was 91.2 MB in the beginning and 172.6 MB in the end (delta: -81.5 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 156.13 ms. Allocated memory is still 204.5 MB. Free memory was 172.6 MB in the beginning and 168.1 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1198.26 ms. Allocated memory is still 204.5 MB. Free memory was 168.1 MB in the beginning and 88.4 MB in the end (delta: 79.7 MB). Peak memory consumption was 79.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3015.76 ms. Allocated memory was 204.5 MB in the beginning and 254.8 MB in the end (delta: 50.3 MB). Free memory was 88.4 MB in the beginning and 89.4 MB in the end (delta: -968.4 kB). Peak memory consumption was 49.4 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, 2.9s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 585 SDtfs, 401 SDslu, 1242 SDs, 0 SdLazy, 543 SolverSat, 76 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s 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, 0.3s 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...