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_spec1_product12.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:29:28,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:29:28,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:29:28,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:29:28,053 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:29:28,055 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:29:28,057 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:29:28,070 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:29:28,071 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:29:28,072 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:29:28,075 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:29:28,078 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:29:28,078 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:29:28,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:29:28,084 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:29:28,086 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:29:28,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:29:28,091 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:29:28,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:29:28,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:29:28,100 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:29:28,102 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:29:28,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:29:28,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:29:28,109 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:29:28,109 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:29:28,109 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:29:28,111 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:29:28,112 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:29:28,115 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:29:28,115 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:29:28,116 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:29:28,117 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:29:28,118 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:29:28,122 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:29:28,122 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:29:28,123 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:29:28,123 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:29:28,124 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:29:28,124 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:29:28,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:29:28,126 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 [2019-09-20 13:29:28,147 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:29:28,148 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:29:28,150 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:29:28,150 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:29:28,151 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:29:28,151 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:29:28,151 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:29:28,152 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:29:28,152 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:29:28,152 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:29:28,154 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:29:28,155 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:29:28,155 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:29:28,155 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:29:28,155 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:29:28,156 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:29:28,156 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:29:28,156 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:29:28,156 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:29:28,156 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:29:28,157 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:29:28,158 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:29:28,158 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:29:28,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:28,158 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:29:28,159 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:29:28,159 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:29:28,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:29:28,159 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:29:28,159 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:29:28,216 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:29:28,232 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:29:28,237 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:29:28,239 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:29:28,240 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:29:28,241 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product12.cil.c [2019-09-20 13:29:28,308 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aace4ca80/16d1568b7bcc4d9ea6c81a545b0967ca/FLAG8c18299a3 [2019-09-20 13:29:28,876 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:29:28,877 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product12.cil.c [2019-09-20 13:29:28,890 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aace4ca80/16d1568b7bcc4d9ea6c81a545b0967ca/FLAG8c18299a3 [2019-09-20 13:29:29,143 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aace4ca80/16d1568b7bcc4d9ea6c81a545b0967ca [2019-09-20 13:29:29,154 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:29:29,155 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:29:29,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:29,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:29:29,160 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:29:29,161 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:29" (1/1) ... [2019-09-20 13:29:29,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@385d82a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:29, skipping insertion in model container [2019-09-20 13:29:29,167 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:29" (1/1) ... [2019-09-20 13:29:29,177 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:29:29,246 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:29:29,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:29,787 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:29:29,875 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:29,916 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:29:29,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:29 WrapperNode [2019-09-20 13:29:29,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:29,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:29:29,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:29:29,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:29:29,932 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:29" (1/1) ... [2019-09-20 13:29:29,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:29" (1/1) ... [2019-09-20 13:29:29,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:29" (1/1) ... [2019-09-20 13:29:29,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:29" (1/1) ... [2019-09-20 13:29:29,999 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:29" (1/1) ... [2019-09-20 13:29:30,019 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:29" (1/1) ... [2019-09-20 13:29:30,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:29" (1/1) ... [2019-09-20 13:29:30,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:29:30,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:29:30,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:29:30,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:29:30,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:29" (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 [2019-09-20 13:29:30,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:29:30,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:29:30,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:30,098 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:29:30,099 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:29:30,099 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:29:30,099 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2019-09-20 13:29:30,099 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:29:30,099 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:29:30,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:29:30,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:29:30,101 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:29:30,101 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-20 13:29:30,102 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:29:30,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:29:30,103 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:29:30,103 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:29:30,103 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:29:30,104 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:29:30,104 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:29:30,104 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:29:30,104 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:29:30,104 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:29:30,105 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:29:30,105 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:29:30,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-20 13:29:30,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:30,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:30,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:30,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:29:30,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:29:30,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:29:30,107 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:29:30,107 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:29:30,108 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:29:30,108 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:29:30,108 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:29:30,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:29:30,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:29:30,108 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:29:30,109 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:29:30,109 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:29:30,109 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:29:30,109 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-20 13:29:30,110 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:29:30,110 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:29:30,110 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:29:30,110 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:29:30,110 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:29:30,110 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:29:30,111 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:29:30,111 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:29:30,111 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:29:30,111 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:29:30,111 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-20 13:29:30,111 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:29:30,111 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2019-09-20 13:29:30,112 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:29:30,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:29:30,112 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:29:30,112 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:29:30,112 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:29:30,112 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:29:30,112 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:29:30,113 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:29:30,113 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:29:30,113 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:29:30,113 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:29:30,114 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:30,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:29:30,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:29:30,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:29:30,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:29:30,115 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:30,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:29:30,115 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:30,115 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:30,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:29:30,116 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:29:30,116 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:29:30,117 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:29:30,117 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:29:30,117 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:29:30,117 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:29:30,117 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:29:30,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:29:30,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:29:30,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:29:31,172 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:29:31,172 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:29:31,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:31 BoogieIcfgContainer [2019-09-20 13:29:31,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:29:31,176 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:29:31,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:29:31,180 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:29:31,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:29:29" (1/3) ... [2019-09-20 13:29:31,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cb1e71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:31, skipping insertion in model container [2019-09-20 13:29:31,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:29" (2/3) ... [2019-09-20 13:29:31,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cb1e71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:31, skipping insertion in model container [2019-09-20 13:29:31,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:31" (3/3) ... [2019-09-20 13:29:31,184 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product12.cil.c [2019-09-20 13:29:31,195 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:29:31,208 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:29:31,226 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:29:31,256 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:29:31,257 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:29:31,257 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:29:31,258 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:29:31,258 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:29:31,258 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:29:31,258 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:29:31,258 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:29:31,290 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states. [2019-09-20 13:29:31,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-20 13:29:31,304 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:31,305 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] [2019-09-20 13:29:31,309 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:31,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:31,316 INFO L82 PathProgramCache]: Analyzing trace with hash -2135633634, now seen corresponding path program 1 times [2019-09-20 13:29:31,319 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:31,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:31,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:31,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:31,403 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:31,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:31,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:31,738 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:31,739 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:29:31,739 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:31,745 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:29:31,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:29:31,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:31,763 INFO L87 Difference]: Start difference. First operand 148 states. Second operand 2 states. [2019-09-20 13:29:31,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:31,788 INFO L93 Difference]: Finished difference Result 105 states and 120 transitions. [2019-09-20 13:29:31,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:29:31,790 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-20 13:29:31,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:31,802 INFO L225 Difference]: With dead ends: 105 [2019-09-20 13:29:31,802 INFO L226 Difference]: Without dead ends: 94 [2019-09-20 13:29:31,804 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 [2019-09-20 13:29:31,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2019-09-20 13:29:31,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2019-09-20 13:29:31,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-09-20 13:29:31,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 108 transitions. [2019-09-20 13:29:31,858 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 108 transitions. Word has length 46 [2019-09-20 13:29:31,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:31,859 INFO L475 AbstractCegarLoop]: Abstraction has 94 states and 108 transitions. [2019-09-20 13:29:31,859 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:29:31,859 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 108 transitions. [2019-09-20 13:29:31,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-20 13:29:31,862 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:31,862 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] [2019-09-20 13:29:31,863 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:31,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:31,863 INFO L82 PathProgramCache]: Analyzing trace with hash -1443818456, now seen corresponding path program 1 times [2019-09-20 13:29:31,863 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:31,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:31,866 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:31,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:31,866 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:32,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:32,004 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:32,004 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:32,004 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:32,008 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:32,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:32,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:32,010 INFO L87 Difference]: Start difference. First operand 94 states and 108 transitions. Second operand 3 states. [2019-09-20 13:29:32,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:32,037 INFO L93 Difference]: Finished difference Result 85 states and 96 transitions. [2019-09-20 13:29:32,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:32,039 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-20 13:29:32,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:32,041 INFO L225 Difference]: With dead ends: 85 [2019-09-20 13:29:32,043 INFO L226 Difference]: Without dead ends: 85 [2019-09-20 13:29:32,044 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 [2019-09-20 13:29:32,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-09-20 13:29:32,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2019-09-20 13:29:32,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-09-20 13:29:32,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 96 transitions. [2019-09-20 13:29:32,055 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 96 transitions. Word has length 47 [2019-09-20 13:29:32,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:32,056 INFO L475 AbstractCegarLoop]: Abstraction has 85 states and 96 transitions. [2019-09-20 13:29:32,056 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:32,057 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 96 transitions. [2019-09-20 13:29:32,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:29:32,059 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:32,059 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] [2019-09-20 13:29:32,060 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:32,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:32,061 INFO L82 PathProgramCache]: Analyzing trace with hash 870802390, now seen corresponding path program 1 times [2019-09-20 13:29:32,061 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:32,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:32,065 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:32,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:32,065 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:32,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:32,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:32,214 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:32,214 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:29:32,214 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:32,215 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:29:32,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:29:32,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:29:32,216 INFO L87 Difference]: Start difference. First operand 85 states and 96 transitions. Second operand 7 states. [2019-09-20 13:29:32,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:32,597 INFO L93 Difference]: Finished difference Result 196 states and 232 transitions. [2019-09-20 13:29:32,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:29:32,597 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-20 13:29:32,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:32,601 INFO L225 Difference]: With dead ends: 196 [2019-09-20 13:29:32,601 INFO L226 Difference]: Without dead ends: 196 [2019-09-20 13:29:32,601 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 [2019-09-20 13:29:32,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2019-09-20 13:29:32,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 172. [2019-09-20 13:29:32,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2019-09-20 13:29:32,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 204 transitions. [2019-09-20 13:29:32,624 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 204 transitions. Word has length 52 [2019-09-20 13:29:32,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:32,625 INFO L475 AbstractCegarLoop]: Abstraction has 172 states and 204 transitions. [2019-09-20 13:29:32,625 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:29:32,625 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 204 transitions. [2019-09-20 13:29:32,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-09-20 13:29:32,627 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:32,628 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] [2019-09-20 13:29:32,628 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:32,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:32,628 INFO L82 PathProgramCache]: Analyzing trace with hash -1258139816, now seen corresponding path program 1 times [2019-09-20 13:29:32,629 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:32,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:32,631 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:32,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:32,632 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:32,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:32,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:32,745 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:32,746 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:32,746 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:32,747 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:32,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:32,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:32,748 INFO L87 Difference]: Start difference. First operand 172 states and 204 transitions. Second operand 6 states. [2019-09-20 13:29:32,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:32,945 INFO L93 Difference]: Finished difference Result 305 states and 364 transitions. [2019-09-20 13:29:32,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:32,946 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2019-09-20 13:29:32,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:32,950 INFO L225 Difference]: With dead ends: 305 [2019-09-20 13:29:32,950 INFO L226 Difference]: Without dead ends: 305 [2019-09-20 13:29:32,950 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:29:32,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2019-09-20 13:29:32,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 299. [2019-09-20 13:29:32,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2019-09-20 13:29:32,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 358 transitions. [2019-09-20 13:29:32,982 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 358 transitions. Word has length 55 [2019-09-20 13:29:32,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:32,983 INFO L475 AbstractCegarLoop]: Abstraction has 299 states and 358 transitions. [2019-09-20 13:29:32,983 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:32,983 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 358 transitions. [2019-09-20 13:29:32,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-20 13:29:32,986 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:32,986 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] [2019-09-20 13:29:32,987 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:32,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:32,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1200680476, now seen corresponding path program 1 times [2019-09-20 13:29:32,987 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:32,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:32,991 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:32,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:32,991 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:33,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:33,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:33,130 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:33,130 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:33,131 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:33,132 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:33,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:33,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:33,134 INFO L87 Difference]: Start difference. First operand 299 states and 358 transitions. Second operand 6 states. [2019-09-20 13:29:33,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:33,289 INFO L93 Difference]: Finished difference Result 270 states and 313 transitions. [2019-09-20 13:29:33,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:29:33,291 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 59 [2019-09-20 13:29:33,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:33,292 INFO L225 Difference]: With dead ends: 270 [2019-09-20 13:29:33,292 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:29:33,293 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:29:33,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:29:33,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:29:33,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:29:33,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:29:33,294 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2019-09-20 13:29:33,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:33,294 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:29:33,294 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:33,294 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:29:33,294 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:29:33,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:29:33 BoogieIcfgContainer [2019-09-20 13:29:33,301 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:29:33,304 INFO L168 Benchmark]: Toolchain (without parser) took 4147.27 ms. Allocated memory was 136.8 MB in the beginning and 271.6 MB in the end (delta: 134.7 MB). Free memory was 81.7 MB in the beginning and 186.7 MB in the end (delta: -104.9 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:33,305 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 136.8 MB. Free memory was 101.5 MB in the beginning and 101.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:29:33,307 INFO L168 Benchmark]: CACSL2BoogieTranslator took 761.07 ms. Allocated memory was 136.8 MB in the beginning and 197.7 MB in the end (delta: 60.8 MB). Free memory was 81.5 MB in the beginning and 163.5 MB in the end (delta: -82.0 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:33,309 INFO L168 Benchmark]: Boogie Preprocessor took 121.88 ms. Allocated memory is still 197.7 MB. Free memory was 163.5 MB in the beginning and 159.7 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:33,310 INFO L168 Benchmark]: RCFGBuilder took 1134.72 ms. Allocated memory is still 197.7 MB. Free memory was 159.7 MB in the beginning and 78.5 MB in the end (delta: 81.3 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:33,312 INFO L168 Benchmark]: TraceAbstraction took 2125.04 ms. Allocated memory was 197.7 MB in the beginning and 271.6 MB in the end (delta: 73.9 MB). Free memory was 77.8 MB in the beginning and 186.7 MB in the end (delta: -108.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:29:33,320 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 136.8 MB. Free memory was 101.5 MB in the beginning and 101.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 761.07 ms. Allocated memory was 136.8 MB in the beginning and 197.7 MB in the end (delta: 60.8 MB). Free memory was 81.5 MB in the beginning and 163.5 MB in the end (delta: -82.0 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 121.88 ms. Allocated memory is still 197.7 MB. Free memory was 163.5 MB in the beginning and 159.7 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1134.72 ms. Allocated memory is still 197.7 MB. Free memory was 159.7 MB in the beginning and 78.5 MB in the end (delta: 81.3 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2125.04 ms. Allocated memory was 197.7 MB in the beginning and 271.6 MB in the end (delta: 73.9 MB). Free memory was 77.8 MB in the beginning and 186.7 MB in the end (delta: -108.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 275]: 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 37 procedures, 211 locations, 1 error locations. SAFE Result, 2.0s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 511 SDtfs, 292 SDslu, 968 SDs, 0 SdLazy, 243 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=299occurred 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, 5 MinimizatonAttempts, 30 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 259 NumberOfCodeBlocks, 259 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 254 ConstructedInterpolants, 0 QuantifiedInterpolants, 24632 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...