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_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:30:54,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:30:54,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:30:54,092 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:30:54,092 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:30:54,093 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:30:54,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:30:54,097 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:30:54,099 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:30:54,099 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:30:54,101 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:30:54,102 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:30:54,102 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:30:54,103 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:30:54,104 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:30:54,105 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:30:54,106 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:30:54,107 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:30:54,109 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:30:54,111 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:30:54,113 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:30:54,114 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:30:54,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:30:54,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:30:54,119 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:30:54,119 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:30:54,119 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:30:54,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:30:54,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:30:54,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:30:54,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:30:54,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:30:54,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:30:54,124 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:30:54,125 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:30:54,125 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:30:54,126 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:30:54,126 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:30:54,127 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:30:54,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:30:54,128 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:30:54,129 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 13:30:54,144 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:30:54,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:30:54,145 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:30:54,145 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:30:54,146 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:30:54,146 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:30:54,146 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:30:54,146 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:30:54,147 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:30:54,147 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:30:54,148 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:30:54,148 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:30:54,148 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:30:54,148 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:30:54,148 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:30:54,149 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:30:54,149 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:30:54,149 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:30:54,149 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:30:54,149 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:30:54,150 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:30:54,150 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:30:54,150 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:30:54,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:30:54,150 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:30:54,151 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:30:54,151 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:30:54,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:30:54,151 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:30:54,151 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:30:54,180 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:30:54,193 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:30:54,197 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:30:54,198 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:30:54,199 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:30:54,199 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product31.cil.c [2019-09-20 13:30:54,270 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a70d8798/766b555a5e2b4197812f99f0ba2d84ab/FLAG27e378d31 [2019-09-20 13:30:54,853 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:30:54,854 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product31.cil.c [2019-09-20 13:30:54,884 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a70d8798/766b555a5e2b4197812f99f0ba2d84ab/FLAG27e378d31 [2019-09-20 13:30:55,196 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a70d8798/766b555a5e2b4197812f99f0ba2d84ab [2019-09-20 13:30:55,205 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:30:55,207 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:30:55,208 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:55,208 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:30:55,211 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:30:55,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:55" (1/1) ... [2019-09-20 13:30:55,217 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f500b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:55, skipping insertion in model container [2019-09-20 13:30:55,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:55" (1/1) ... [2019-09-20 13:30:55,224 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:30:55,277 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:30:55,725 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:55,752 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:30:55,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:55,905 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:30:55,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:55 WrapperNode [2019-09-20 13:30:55,906 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:55,907 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:30:55,907 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:30:55,907 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:30:55,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:55" (1/1) ... [2019-09-20 13:30:55,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:55" (1/1) ... [2019-09-20 13:30:55,955 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:55" (1/1) ... [2019-09-20 13:30:55,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:55" (1/1) ... [2019-09-20 13:30:55,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:55" (1/1) ... [2019-09-20 13:30:55,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:55" (1/1) ... [2019-09-20 13:30:56,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:55" (1/1) ... [2019-09-20 13:30:56,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:30:56,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:30:56,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:30:56,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:30:56,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:55" (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 13:30:56,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:30:56,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:30:56,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:56,073 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:30:56,073 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:30:56,073 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:30:56,074 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:30:56,074 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:30:56,074 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:30:56,074 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:30:56,074 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:30:56,074 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:30:56,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:56,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:56,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:56,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:30:56,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:30:56,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:30:56,076 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:30:56,076 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:30:56,076 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:30:56,076 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:30:56,076 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:30:56,077 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:30:56,077 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:30:56,077 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:30:56,077 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:30:56,077 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:30:56,077 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-20 13:30:56,078 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:30:56,078 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:30:56,078 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:30:56,078 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:30:56,078 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:30:56,078 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:30:56,078 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:30:56,079 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:30:56,079 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-20 13:30:56,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-09-20 13:30:56,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:30:56,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:30:56,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:30:56,080 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:30:56,080 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:30:56,080 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:30:56,080 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:30:56,080 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:30:56,080 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:30:56,081 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:30:56,081 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:30:56,081 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:30:56,081 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:30:56,081 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:30:56,081 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:30:56,081 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:30:56,082 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:30:56,082 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:30:56,082 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:30:56,082 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:30:56,082 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:30:56,082 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:56,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:30:56,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:30:56,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:30:56,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:30:56,083 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:56,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:30:56,084 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:56,084 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:56,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:30:56,084 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:30:56,084 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:30:56,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:30:56,085 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:30:56,085 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:30:56,085 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:30:56,085 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:30:56,085 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:30:56,085 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:30:56,086 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-20 13:30:56,086 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:30:56,086 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:30:56,086 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:30:56,086 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-09-20 13:30:56,086 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:30:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:30:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:30:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-20 13:30:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:30:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:30:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:30:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:30:56,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:30:56,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:30:57,307 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:30:57,308 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:30:57,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:57 BoogieIcfgContainer [2019-09-20 13:30:57,310 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:30:57,312 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:30:57,312 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:30:57,316 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:30:57,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:30:55" (1/3) ... [2019-09-20 13:30:57,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@280c092 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:57, skipping insertion in model container [2019-09-20 13:30:57,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:55" (2/3) ... [2019-09-20 13:30:57,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@280c092 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:57, skipping insertion in model container [2019-09-20 13:30:57,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:57" (3/3) ... [2019-09-20 13:30:57,320 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product31.cil.c [2019-09-20 13:30:57,331 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:30:57,341 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:30:57,352 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:30:57,375 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:30:57,375 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:30:57,376 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:30:57,376 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:30:57,376 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:30:57,376 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:30:57,376 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:30:57,377 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:30:57,395 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2019-09-20 13:30:57,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-20 13:30:57,408 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:57,408 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 13:30:57,411 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:57,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:57,416 INFO L82 PathProgramCache]: Analyzing trace with hash -1860559375, now seen corresponding path program 1 times [2019-09-20 13:30:57,417 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:57,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:57,475 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:57,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:57,475 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:57,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:57,789 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 13:30:57,794 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:57,794 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:30:57,795 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:57,801 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:57,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:57,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:57,820 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 2 states. [2019-09-20 13:30:57,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:57,865 INFO L93 Difference]: Finished difference Result 139 states and 163 transitions. [2019-09-20 13:30:57,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:57,867 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-20 13:30:57,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:57,878 INFO L225 Difference]: With dead ends: 139 [2019-09-20 13:30:57,878 INFO L226 Difference]: Without dead ends: 128 [2019-09-20 13:30:57,880 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 13:30:57,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2019-09-20 13:30:57,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2019-09-20 13:30:57,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-09-20 13:30:57,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 151 transitions. [2019-09-20 13:30:57,933 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 151 transitions. Word has length 46 [2019-09-20 13:30:57,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:57,933 INFO L475 AbstractCegarLoop]: Abstraction has 128 states and 151 transitions. [2019-09-20 13:30:57,934 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:57,934 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 151 transitions. [2019-09-20 13:30:57,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-20 13:30:57,937 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:57,938 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 13:30:57,938 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:57,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:57,938 INFO L82 PathProgramCache]: Analyzing trace with hash 344709466, now seen corresponding path program 1 times [2019-09-20 13:30:57,939 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:57,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:57,941 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:57,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:57,942 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:57,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:58,036 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 13:30:58,037 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:58,037 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:58,038 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:58,040 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:58,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:58,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:58,042 INFO L87 Difference]: Start difference. First operand 128 states and 151 transitions. Second operand 3 states. [2019-09-20 13:30:58,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:58,079 INFO L93 Difference]: Finished difference Result 119 states and 139 transitions. [2019-09-20 13:30:58,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:58,080 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-20 13:30:58,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:58,082 INFO L225 Difference]: With dead ends: 119 [2019-09-20 13:30:58,083 INFO L226 Difference]: Without dead ends: 119 [2019-09-20 13:30:58,084 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 13:30:58,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2019-09-20 13:30:58,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2019-09-20 13:30:58,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-09-20 13:30:58,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 139 transitions. [2019-09-20 13:30:58,096 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 139 transitions. Word has length 47 [2019-09-20 13:30:58,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:58,096 INFO L475 AbstractCegarLoop]: Abstraction has 119 states and 139 transitions. [2019-09-20 13:30:58,096 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:58,097 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 139 transitions. [2019-09-20 13:30:58,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:30:58,099 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:58,099 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:58,099 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:58,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:58,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1335502603, now seen corresponding path program 1 times [2019-09-20 13:30:58,100 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:58,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:58,103 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:58,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:58,103 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:58,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:58,245 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 13:30:58,246 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:58,246 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:58,246 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:58,247 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:58,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:58,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:58,247 INFO L87 Difference]: Start difference. First operand 119 states and 139 transitions. Second operand 7 states. [2019-09-20 13:30:58,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:58,742 INFO L93 Difference]: Finished difference Result 264 states and 316 transitions. [2019-09-20 13:30:58,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:30:58,742 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-09-20 13:30:58,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:58,748 INFO L225 Difference]: With dead ends: 264 [2019-09-20 13:30:58,751 INFO L226 Difference]: Without dead ends: 264 [2019-09-20 13:30:58,751 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 13:30:58,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2019-09-20 13:30:58,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 256. [2019-09-20 13:30:58,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2019-09-20 13:30:58,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 310 transitions. [2019-09-20 13:30:58,805 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 310 transitions. Word has length 51 [2019-09-20 13:30:58,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:58,806 INFO L475 AbstractCegarLoop]: Abstraction has 256 states and 310 transitions. [2019-09-20 13:30:58,806 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:58,807 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 310 transitions. [2019-09-20 13:30:58,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-20 13:30:58,814 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:58,814 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] [2019-09-20 13:30:58,814 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:58,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:58,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1187986019, now seen corresponding path program 1 times [2019-09-20 13:30:58,815 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:58,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:58,820 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:58,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:58,820 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:58,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:59,070 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 13:30:59,070 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:59,070 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-20 13:30:59,070 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:59,071 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-20 13:30:59,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-20 13:30:59,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:30:59,072 INFO L87 Difference]: Start difference. First operand 256 states and 310 transitions. Second operand 10 states. [2019-09-20 13:30:59,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:59,788 INFO L93 Difference]: Finished difference Result 672 states and 841 transitions. [2019-09-20 13:30:59,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-20 13:30:59,789 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2019-09-20 13:30:59,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:59,802 INFO L225 Difference]: With dead ends: 672 [2019-09-20 13:30:59,802 INFO L226 Difference]: Without dead ends: 672 [2019-09-20 13:30:59,803 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-09-20 13:30:59,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2019-09-20 13:30:59,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 660. [2019-09-20 13:30:59,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 660 states. [2019-09-20 13:30:59,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 820 transitions. [2019-09-20 13:30:59,858 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 820 transitions. Word has length 57 [2019-09-20 13:30:59,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:59,859 INFO L475 AbstractCegarLoop]: Abstraction has 660 states and 820 transitions. [2019-09-20 13:30:59,859 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-20 13:30:59,859 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 820 transitions. [2019-09-20 13:30:59,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-09-20 13:30:59,863 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:59,863 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:59,864 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:59,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:59,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1722292439, now seen corresponding path program 1 times [2019-09-20 13:30:59,864 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:59,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:59,867 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:59,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:59,867 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:59,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:59,993 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 13:30:59,994 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:59,994 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:30:59,994 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:59,995 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:30:59,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:30:59,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:30:59,995 INFO L87 Difference]: Start difference. First operand 660 states and 820 transitions. Second operand 4 states. [2019-09-20 13:31:00,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:00,145 INFO L93 Difference]: Finished difference Result 426 states and 494 transitions. [2019-09-20 13:31:00,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:31:00,148 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2019-09-20 13:31:00,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:00,151 INFO L225 Difference]: With dead ends: 426 [2019-09-20 13:31:00,151 INFO L226 Difference]: Without dead ends: 426 [2019-09-20 13:31:00,151 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:31:00,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2019-09-20 13:31:00,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 414. [2019-09-20 13:31:00,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2019-09-20 13:31:00,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 476 transitions. [2019-09-20 13:31:00,169 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 476 transitions. Word has length 61 [2019-09-20 13:31:00,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:00,170 INFO L475 AbstractCegarLoop]: Abstraction has 414 states and 476 transitions. [2019-09-20 13:31:00,170 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:31:00,170 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 476 transitions. [2019-09-20 13:31:00,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-09-20 13:31:00,172 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:00,172 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:31:00,173 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:00,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:00,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1674870262, now seen corresponding path program 1 times [2019-09-20 13:31:00,173 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:00,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:00,176 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:00,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:00,176 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:00,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:00,302 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-09-20 13:31:00,302 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:31:00,303 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:31:00,304 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 89 with the following transitions: [2019-09-20 13:31:00,306 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [54], [57], [59], [62], [68], [70], [71], [75], [78], [107], [109], [110], [122], [158], [167], [171], [175], [178], [183], [189], [191], [194], [196], [199], [234], [235], [241], [248], [251], [289], [293], [294], [297], [317], [318], [411], [412], [422], [430], [431], [432], [433], [434], [436], [437], [438], [439], [440], [441], [442], [443], [444], [488], [489], [492], [493], [494], [495], [506], [507], [522], [530], [531], [532] [2019-09-20 13:31:00,348 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:31:00,349 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:31:00,459 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:31:00,461 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 69 root evaluator evaluations with a maximum evaluation depth of 0. Performed 69 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 126 variables. [2019-09-20 13:31:00,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:00,464 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:31:00,512 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-20 13:31:00,512 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:31:00,515 INFO L420 sIntCurrentIteration]: We unified 87 AI predicates to 87 [2019-09-20 13:31:00,516 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:31:00,516 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:31:00,517 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-09-20 13:31:00,517 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:00,517 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:31:00,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:31:00,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:00,518 INFO L87 Difference]: Start difference. First operand 414 states and 476 transitions. Second operand 2 states. [2019-09-20 13:31:00,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:00,519 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-20 13:31:00,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:31:00,519 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 88 [2019-09-20 13:31:00,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:00,519 INFO L225 Difference]: With dead ends: 2 [2019-09-20 13:31:00,519 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:31:00,520 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 87 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 13:31:00,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:31:00,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:31:00,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:31:00,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:31:00,521 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 88 [2019-09-20 13:31:00,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:00,521 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:31:00,521 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:31:00,521 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:31:00,521 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:31:00,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:31:00 BoogieIcfgContainer [2019-09-20 13:31:00,527 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:31:00,530 INFO L168 Benchmark]: Toolchain (without parser) took 5322.07 ms. Allocated memory was 138.4 MB in the beginning and 268.4 MB in the end (delta: 130.0 MB). Free memory was 85.0 MB in the beginning and 223.6 MB in the end (delta: -138.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:31:00,531 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 104.4 MB in the beginning and 104.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:31:00,532 INFO L168 Benchmark]: CACSL2BoogieTranslator took 699.00 ms. Allocated memory was 138.4 MB in the beginning and 198.2 MB in the end (delta: 59.8 MB). Free memory was 84.8 MB in the beginning and 163.2 MB in the end (delta: -78.3 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:00,532 INFO L168 Benchmark]: Boogie Preprocessor took 107.78 ms. Allocated memory is still 198.2 MB. Free memory was 163.2 MB in the beginning and 159.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:00,534 INFO L168 Benchmark]: RCFGBuilder took 1295.10 ms. Allocated memory was 198.2 MB in the beginning and 219.7 MB in the end (delta: 21.5 MB). Free memory was 159.4 MB in the beginning and 188.8 MB in the end (delta: -29.4 MB). Peak memory consumption was 93.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:00,535 INFO L168 Benchmark]: TraceAbstraction took 3215.53 ms. Allocated memory was 219.7 MB in the beginning and 268.4 MB in the end (delta: 48.8 MB). Free memory was 188.8 MB in the beginning and 223.6 MB in the end (delta: -34.8 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:00,543 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 138.4 MB. Free memory was 104.4 MB in the beginning and 104.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 699.00 ms. Allocated memory was 138.4 MB in the beginning and 198.2 MB in the end (delta: 59.8 MB). Free memory was 84.8 MB in the beginning and 163.2 MB in the end (delta: -78.3 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.78 ms. Allocated memory is still 198.2 MB. Free memory was 163.2 MB in the beginning and 159.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1295.10 ms. Allocated memory was 198.2 MB in the beginning and 219.7 MB in the end (delta: 21.5 MB). Free memory was 159.4 MB in the beginning and 188.8 MB in the end (delta: -29.4 MB). Peak memory consumption was 93.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3215.53 ms. Allocated memory was 219.7 MB in the beginning and 268.4 MB in the end (delta: 48.8 MB). Free memory was 188.8 MB in the beginning and 223.6 MB in the end (delta: -34.8 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 952]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 237 locations, 1 error locations. SAFE Result, 3.1s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 726 SDtfs, 534 SDslu, 1720 SDs, 0 SdLazy, 570 SolverSat, 84 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=660occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 1.0804597701149425 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 32 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 350 NumberOfCodeBlocks, 350 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 344 ConstructedInterpolants, 0 QuantifiedInterpolants, 42856 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 20/23 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...