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_product63.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:50:33,015 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:50:33,017 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:50:33,029 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:50:33,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:50:33,030 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:50:33,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:50:33,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:50:33,036 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:50:33,037 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:50:33,038 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:50:33,039 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:50:33,039 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:50:33,040 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:50:33,041 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:50:33,043 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:50:33,044 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:50:33,045 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:50:33,047 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:50:33,049 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:50:33,051 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:50:33,052 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:50:33,053 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:50:33,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:50:33,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:50:33,057 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:50:33,057 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:50:33,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:50:33,058 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:50:33,062 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:50:33,063 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:50:33,063 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:50:33,066 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:50:33,067 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:50:33,068 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:50:33,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:50:33,069 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:50:33,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:50:33,069 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:50:33,070 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:50:33,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:50:33,073 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 02:50:33,103 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:50:33,104 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:50:33,105 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:50:33,105 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:50:33,105 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:50:33,106 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:50:33,106 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:50:33,106 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:50:33,106 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:50:33,106 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:50:33,109 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:50:33,109 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:50:33,109 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:50:33,110 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:50:33,110 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:50:33,110 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:50:33,110 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:50:33,111 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:50:33,111 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:50:33,111 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:50:33,112 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:50:33,112 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:50:33,112 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:50:33,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:50:33,113 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:50:33,113 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:50:33,113 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:50:33,113 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:50:33,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:50:33,114 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:50:33,144 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:50:33,157 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:50:33,160 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:50:33,162 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:50:33,162 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:50:33,163 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product63.cil.c [2019-09-10 02:50:33,224 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b22d13c4/572042f7b0b54276b9d9a1e60553d0fe/FLAG0378eea5b [2019-09-10 02:50:33,768 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:50:33,768 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product63.cil.c [2019-09-10 02:50:33,786 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b22d13c4/572042f7b0b54276b9d9a1e60553d0fe/FLAG0378eea5b [2019-09-10 02:50:34,049 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b22d13c4/572042f7b0b54276b9d9a1e60553d0fe [2019-09-10 02:50:34,058 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:50:34,059 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:50:34,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:50:34,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:50:34,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:50:34,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:50:34" (1/1) ... [2019-09-10 02:50:34,068 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f1b76c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:34, skipping insertion in model container [2019-09-10 02:50:34,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:50:34" (1/1) ... [2019-09-10 02:50:34,076 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:50:34,137 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:50:34,586 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:50:34,604 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:50:34,711 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:50:34,751 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:50:34,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:34 WrapperNode [2019-09-10 02:50:34,752 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:50:34,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:50:34,753 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:50:34,753 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:50:34,765 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:34" (1/1) ... [2019-09-10 02:50:34,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:34" (1/1) ... [2019-09-10 02:50:34,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:34" (1/1) ... [2019-09-10 02:50:34,785 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:34" (1/1) ... [2019-09-10 02:50:34,814 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:34" (1/1) ... [2019-09-10 02:50:34,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:34" (1/1) ... [2019-09-10 02:50:34,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:34" (1/1) ... [2019-09-10 02:50:34,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:50:34,839 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:50:34,839 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:50:34,839 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:50:34,840 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:50:34,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:50:34,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:50:34,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:50:34,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:50:34,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:50:34,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:50:34,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:50:34,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:50:34,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:50:34,924 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:50:34,924 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:50:34,925 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:50:34,925 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:50:34,926 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:50:34,926 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:50:34,927 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:50:34,927 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:50:34,928 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:50:34,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-09-10 02:50:34,928 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:50:34,928 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:50:34,928 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:50:34,928 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:50:34,929 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:50:34,929 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:50:34,930 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-10 02:50:34,930 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-10 02:50:34,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:50:34,930 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:50:34,930 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-10 02:50:34,931 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-10 02:50:34,931 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-10 02:50:34,931 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:50:34,931 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-10 02:50:34,931 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:50:34,931 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:50:34,932 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:50:34,932 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:50:34,932 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:50:34,932 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-10 02:50:34,932 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-10 02:50:34,932 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-10 02:50:34,933 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:50:34,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:50:34,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:50:34,934 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:50:34,934 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:50:34,934 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:50:34,934 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:50:34,934 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:50:34,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:50:34,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:50:34,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:50:34,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:50:34,935 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:50:34,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:50:34,935 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:50:34,936 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:50:34,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:50:34,936 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:50:34,936 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:50:34,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:50:34,936 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:50:34,937 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:50:34,937 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:50:34,937 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:50:34,937 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:50:34,938 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:50:34,938 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:50:34,938 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:50:34,938 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:50:34,938 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:50:34,938 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:50:34,939 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:50:34,940 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:50:34,940 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:50:34,940 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:50:34,940 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:50:34,940 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:50:34,941 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:50:34,941 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-09-10 02:50:34,941 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:50:34,941 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:50:34,942 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:50:34,942 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-10 02:50:34,943 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-10 02:50:34,944 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:50:34,944 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:50:34,944 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-10 02:50:34,944 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:50:34,945 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-10 02:50:34,945 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-10 02:50:34,945 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-10 02:50:34,945 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-10 02:50:34,945 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-10 02:50:34,945 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:50:34,946 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-10 02:50:34,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:50:34,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:50:34,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:50:36,223 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:50:36,223 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:50:36,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:50:36 BoogieIcfgContainer [2019-09-10 02:50:36,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:50:36,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:50:36,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:50:36,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:50:36,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:50:34" (1/3) ... [2019-09-10 02:50:36,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c019ff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:50:36, skipping insertion in model container [2019-09-10 02:50:36,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:34" (2/3) ... [2019-09-10 02:50:36,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c019ff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:50:36, skipping insertion in model container [2019-09-10 02:50:36,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:50:36" (3/3) ... [2019-09-10 02:50:36,233 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product63.cil.c [2019-09-10 02:50:36,244 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:50:36,252 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:50:36,271 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:50:36,303 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:50:36,304 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:50:36,304 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:50:36,304 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:50:36,305 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:50:36,305 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:50:36,305 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:50:36,305 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:50:36,335 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states. [2019-09-10 02:50:36,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-10 02:50:36,354 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:36,355 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:50:36,359 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:36,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:36,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1593418819, now seen corresponding path program 1 times [2019-09-10 02:50:36,370 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:36,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:36,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:36,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:36,419 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:36,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:36,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:50:36,775 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:36,778 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:50:36,779 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:36,786 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:50:36,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:50:36,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:50:36,817 INFO L87 Difference]: Start difference. First operand 202 states. Second operand 2 states. [2019-09-10 02:50:36,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:36,867 INFO L93 Difference]: Finished difference Result 170 states and 201 transitions. [2019-09-10 02:50:36,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:50:36,869 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-10 02:50:36,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:36,886 INFO L225 Difference]: With dead ends: 170 [2019-09-10 02:50:36,887 INFO L226 Difference]: Without dead ends: 159 [2019-09-10 02:50:36,889 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:50:36,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2019-09-10 02:50:36,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2019-09-10 02:50:36,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2019-09-10 02:50:36,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 189 transitions. [2019-09-10 02:50:36,979 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 189 transitions. Word has length 46 [2019-09-10 02:50:36,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:36,980 INFO L475 AbstractCegarLoop]: Abstraction has 159 states and 189 transitions. [2019-09-10 02:50:36,980 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:50:36,981 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 189 transitions. [2019-09-10 02:50:36,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-10 02:50:36,991 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:36,992 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:50:36,992 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:36,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:36,993 INFO L82 PathProgramCache]: Analyzing trace with hash 261795935, now seen corresponding path program 1 times [2019-09-10 02:50:36,993 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:36,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:36,995 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:36,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:36,995 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:37,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:37,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:50:37,158 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:37,158 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:50:37,159 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:37,161 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:50:37,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:50:37,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:50:37,162 INFO L87 Difference]: Start difference. First operand 159 states and 189 transitions. Second operand 3 states. [2019-09-10 02:50:37,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:37,197 INFO L93 Difference]: Finished difference Result 150 states and 177 transitions. [2019-09-10 02:50:37,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:50:37,198 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-10 02:50:37,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:37,205 INFO L225 Difference]: With dead ends: 150 [2019-09-10 02:50:37,205 INFO L226 Difference]: Without dead ends: 150 [2019-09-10 02:50:37,206 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:50:37,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2019-09-10 02:50:37,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2019-09-10 02:50:37,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2019-09-10 02:50:37,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 177 transitions. [2019-09-10 02:50:37,230 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 177 transitions. Word has length 47 [2019-09-10 02:50:37,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:37,230 INFO L475 AbstractCegarLoop]: Abstraction has 150 states and 177 transitions. [2019-09-10 02:50:37,231 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:50:37,231 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 177 transitions. [2019-09-10 02:50:37,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-10 02:50:37,232 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:37,232 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:50:37,233 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:37,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:37,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1299589925, now seen corresponding path program 1 times [2019-09-10 02:50:37,233 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:37,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:37,234 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:37,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:37,235 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:37,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:37,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:50:37,391 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:37,391 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:50:37,391 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:37,392 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:50:37,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:50:37,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:50:37,393 INFO L87 Difference]: Start difference. First operand 150 states and 177 transitions. Second operand 7 states. [2019-09-10 02:50:38,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:38,002 INFO L93 Difference]: Finished difference Result 326 states and 392 transitions. [2019-09-10 02:50:38,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:50:38,003 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-09-10 02:50:38,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:38,009 INFO L225 Difference]: With dead ends: 326 [2019-09-10 02:50:38,009 INFO L226 Difference]: Without dead ends: 326 [2019-09-10 02:50:38,010 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-10 02:50:38,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2019-09-10 02:50:38,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 318. [2019-09-10 02:50:38,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2019-09-10 02:50:38,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 386 transitions. [2019-09-10 02:50:38,067 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 386 transitions. Word has length 51 [2019-09-10 02:50:38,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:38,068 INFO L475 AbstractCegarLoop]: Abstraction has 318 states and 386 transitions. [2019-09-10 02:50:38,068 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:50:38,068 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 386 transitions. [2019-09-10 02:50:38,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-10 02:50:38,070 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:38,070 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:50:38,071 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:38,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:38,071 INFO L82 PathProgramCache]: Analyzing trace with hash -848411279, now seen corresponding path program 1 times [2019-09-10 02:50:38,071 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:38,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:38,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:38,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:38,073 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:38,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:38,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:50:38,223 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:38,223 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-10 02:50:38,224 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:38,224 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 02:50:38,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 02:50:38,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-10 02:50:38,225 INFO L87 Difference]: Start difference. First operand 318 states and 386 transitions. Second operand 10 states. [2019-09-10 02:50:39,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:39,064 INFO L93 Difference]: Finished difference Result 858 states and 1087 transitions. [2019-09-10 02:50:39,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-10 02:50:39,064 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2019-09-10 02:50:39,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:39,076 INFO L225 Difference]: With dead ends: 858 [2019-09-10 02:50:39,076 INFO L226 Difference]: Without dead ends: 858 [2019-09-10 02:50:39,079 INFO L628 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 [2019-09-10 02:50:39,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2019-09-10 02:50:39,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 846. [2019-09-10 02:50:39,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 846 states. [2019-09-10 02:50:39,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1066 transitions. [2019-09-10 02:50:39,166 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1066 transitions. Word has length 57 [2019-09-10 02:50:39,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:39,167 INFO L475 AbstractCegarLoop]: Abstraction has 846 states and 1066 transitions. [2019-09-10 02:50:39,167 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 02:50:39,167 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1066 transitions. [2019-09-10 02:50:39,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-09-10 02:50:39,173 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:39,174 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:50:39,174 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:39,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:39,175 INFO L82 PathProgramCache]: Analyzing trace with hash -533846889, now seen corresponding path program 1 times [2019-09-10 02:50:39,175 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:39,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:39,176 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:39,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:39,177 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:39,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:39,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:50:39,289 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:39,289 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 02:50:39,289 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:39,291 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 02:50:39,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 02:50:39,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:50:39,293 INFO L87 Difference]: Start difference. First operand 846 states and 1066 transitions. Second operand 4 states. [2019-09-10 02:50:39,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:39,684 INFO L93 Difference]: Finished difference Result 1294 states and 1677 transitions. [2019-09-10 02:50:39,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 02:50:39,685 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2019-09-10 02:50:39,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:39,693 INFO L225 Difference]: With dead ends: 1294 [2019-09-10 02:50:39,694 INFO L226 Difference]: Without dead ends: 1294 [2019-09-10 02:50:39,694 INFO L628 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 [2019-09-10 02:50:39,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1294 states. [2019-09-10 02:50:39,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1294 to 1159. [2019-09-10 02:50:39,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1159 states. [2019-09-10 02:50:39,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1444 transitions. [2019-09-10 02:50:39,754 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1444 transitions. Word has length 61 [2019-09-10 02:50:39,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:39,754 INFO L475 AbstractCegarLoop]: Abstraction has 1159 states and 1444 transitions. [2019-09-10 02:50:39,755 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 02:50:39,755 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1444 transitions. [2019-09-10 02:50:39,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-09-10 02:50:39,757 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:39,757 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:50:39,758 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:39,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:39,758 INFO L82 PathProgramCache]: Analyzing trace with hash 2051159117, now seen corresponding path program 1 times [2019-09-10 02:50:39,758 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:39,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:39,759 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:39,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:39,760 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:39,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:39,847 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-09-10 02:50:39,848 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:50:39,848 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:50:39,849 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 89 with the following transitions: [2019-09-10 02:50:39,851 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [54], [57], [59], [62], [68], [70], [71], [75], [78], [107], [109], [110], [122], [164], [173], [177], [181], [184], [189], [195], [197], [200], [202], [205], [240], [241], [258], [265], [268], [325], [329], [330], [333], [353], [354], [447], [448], [458], [466], [467], [468], [469], [470], [472], [473], [474], [475], [476], [477], [478], [479], [480], [524], [525], [528], [529], [530], [531], [544], [545], [568], [576], [577], [578] [2019-09-10 02:50:39,894 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:50:39,895 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:50:39,967 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:50:39,969 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 68 root evaluator evaluations with a maximum evaluation depth of 0. Performed 68 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 126 variables. [2019-09-10 02:50:39,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:39,974 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:50:40,032 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:50:40,032 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:50:40,037 INFO L420 sIntCurrentIteration]: We unified 87 AI predicates to 87 [2019-09-10 02:50:40,038 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:50:40,041 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:50:40,041 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-09-10 02:50:40,041 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:40,042 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:50:40,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:50:40,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:50:40,043 INFO L87 Difference]: Start difference. First operand 1159 states and 1444 transitions. Second operand 2 states. [2019-09-10 02:50:40,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:40,043 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:50:40,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:50:40,044 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 88 [2019-09-10 02:50:40,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:40,044 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:50:40,044 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:50:40,045 INFO L628 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 [2019-09-10 02:50:40,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:50:40,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:50:40,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:50:40,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:50:40,046 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 88 [2019-09-10 02:50:40,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:40,046 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:50:40,046 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:50:40,046 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:50:40,046 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:50:40,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:50:40 BoogieIcfgContainer [2019-09-10 02:50:40,052 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:50:40,056 INFO L168 Benchmark]: Toolchain (without parser) took 5995.02 ms. Allocated memory was 133.7 MB in the beginning and 260.0 MB in the end (delta: 126.4 MB). Free memory was 88.8 MB in the beginning and 121.8 MB in the end (delta: -33.0 MB). Peak memory consumption was 93.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:40,058 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 133.7 MB. Free memory was 108.2 MB in the beginning and 108.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:50:40,060 INFO L168 Benchmark]: CACSL2BoogieTranslator took 692.32 ms. Allocated memory was 133.7 MB in the beginning and 200.3 MB in the end (delta: 66.6 MB). Free memory was 88.6 MB in the beginning and 164.1 MB in the end (delta: -75.5 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:40,061 INFO L168 Benchmark]: Boogie Preprocessor took 85.66 ms. Allocated memory is still 200.3 MB. Free memory was 164.1 MB in the beginning and 159.7 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:40,063 INFO L168 Benchmark]: RCFGBuilder took 1386.39 ms. Allocated memory was 200.3 MB in the beginning and 226.5 MB in the end (delta: 26.2 MB). Free memory was 159.7 MB in the beginning and 187.4 MB in the end (delta: -27.7 MB). Peak memory consumption was 86.7 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:40,065 INFO L168 Benchmark]: TraceAbstraction took 3826.52 ms. Allocated memory was 226.5 MB in the beginning and 260.0 MB in the end (delta: 33.6 MB). Free memory was 187.4 MB in the beginning and 121.8 MB in the end (delta: 65.6 MB). Peak memory consumption was 99.1 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:40,079 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 133.7 MB. Free memory was 108.2 MB in the beginning and 108.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 692.32 ms. Allocated memory was 133.7 MB in the beginning and 200.3 MB in the end (delta: 66.6 MB). Free memory was 88.6 MB in the beginning and 164.1 MB in the end (delta: -75.5 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 85.66 ms. Allocated memory is still 200.3 MB. Free memory was 164.1 MB in the beginning and 159.7 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1386.39 ms. Allocated memory was 200.3 MB in the beginning and 226.5 MB in the end (delta: 26.2 MB). Free memory was 159.7 MB in the beginning and 187.4 MB in the end (delta: -27.7 MB). Peak memory consumption was 86.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3826.52 ms. Allocated memory was 226.5 MB in the beginning and 260.0 MB in the end (delta: 33.6 MB). Free memory was 187.4 MB in the beginning and 121.8 MB in the end (delta: 65.6 MB). Peak memory consumption was 99.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 686]: 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 43 procedures, 258 locations, 1 error locations. SAFE Result, 3.7s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 2.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 978 SDtfs, 826 SDslu, 2273 SDs, 0 SdLazy, 885 SolverSat, 147 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s 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=1159occurred in iteration=5, 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: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 155 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...