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_spec2_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:49:03,981 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:49:03,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:49:03,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:49:03,995 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:49:03,996 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:49:03,998 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:49:04,000 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:49:04,002 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:49:04,003 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:49:04,004 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:49:04,006 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:49:04,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:49:04,007 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:49:04,008 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:49:04,010 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:49:04,010 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:49:04,012 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:49:04,014 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:49:04,016 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:49:04,018 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:49:04,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:49:04,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:49:04,022 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:49:04,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:49:04,025 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:49:04,025 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:49:04,026 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:49:04,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:49:04,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:49:04,028 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:49:04,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:49:04,030 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:49:04,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:49:04,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:49:04,033 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:49:04,034 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:49:04,034 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:49:04,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:49:04,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:49:04,036 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:49:04,037 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 02:49:04,056 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:49:04,057 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:49:04,057 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:49:04,059 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:49:04,060 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:49:04,060 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:49:04,061 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:49:04,061 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:49:04,061 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:49:04,062 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:49:04,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:49:04,063 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:49:04,063 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:49:04,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:49:04,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:49:04,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:49:04,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:49:04,064 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:49:04,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:49:04,064 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:49:04,066 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:49:04,066 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:49:04,066 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:49:04,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:49:04,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:49:04,067 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:49:04,067 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:49:04,067 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:49:04,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:49:04,068 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:49:04,120 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:49:04,133 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:49:04,136 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:49:04,138 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:49:04,138 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:49:04,139 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product62.cil.c [2019-09-10 02:49:04,208 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/279d9ec36/a6dae886a5df4269b81ff2c3364b6f88/FLAGeffa53aa0 [2019-09-10 02:49:04,763 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:49:04,764 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product62.cil.c [2019-09-10 02:49:04,785 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/279d9ec36/a6dae886a5df4269b81ff2c3364b6f88/FLAGeffa53aa0 [2019-09-10 02:49:05,016 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/279d9ec36/a6dae886a5df4269b81ff2c3364b6f88 [2019-09-10 02:49:05,026 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:49:05,027 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:49:05,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:49:05,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:49:05,032 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:49:05,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:49:05" (1/1) ... [2019-09-10 02:49:05,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69aee768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:05, skipping insertion in model container [2019-09-10 02:49:05,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:49:05" (1/1) ... [2019-09-10 02:49:05,044 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:49:05,098 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:49:05,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:49:05,550 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:49:05,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:49:05,693 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:49:05,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:05 WrapperNode [2019-09-10 02:49:05,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:49:05,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:49:05,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:49:05,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:49:05,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:05" (1/1) ... [2019-09-10 02:49:05,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:05" (1/1) ... [2019-09-10 02:49:05,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:05" (1/1) ... [2019-09-10 02:49:05,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:05" (1/1) ... [2019-09-10 02:49:05,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:05" (1/1) ... [2019-09-10 02:49:05,800 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:05" (1/1) ... [2019-09-10 02:49:05,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:05" (1/1) ... [2019-09-10 02:49:05,814 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:49:05,815 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:49:05,815 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:49:05,815 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:49:05,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:49:05,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:49:05,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:49:05,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:49:05,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:49:05,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:49:05,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:49:05,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:49:05,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:49:05,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:49:05,899 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:49:05,899 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:49:05,900 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:49:05,900 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:49:05,901 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:49:05,901 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:49:05,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-10 02:49:05,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-10 02:49:05,904 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:49:05,904 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:49:05,904 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:49:05,905 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:49:05,905 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:49:05,905 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:49:05,905 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-10 02:49:05,905 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-10 02:49:05,906 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:49:05,907 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:49:05,907 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:49:05,907 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:49:05,907 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:49:05,908 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:49:05,908 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-10 02:49:05,908 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-10 02:49:05,908 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-10 02:49:05,909 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:49:05,909 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-10 02:49:05,909 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:49:05,909 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:49:05,909 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:49:05,910 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:49:05,911 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:49:05,911 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-10 02:49:05,911 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-10 02:49:05,911 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-10 02:49:05,911 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:49:05,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:49:05,913 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:49:05,913 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:49:05,913 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:49:05,913 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:49:05,913 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:49:05,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:49:05,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:49:05,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:49:05,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:49:05,915 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:49:05,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:49:05,915 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:49:05,916 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:49:05,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:49:05,916 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:49:05,917 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:49:05,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:49:05,917 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:49:05,917 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:49:05,918 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:49:05,918 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:49:05,918 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:49:05,919 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:49:05,919 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:49:05,919 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:49:05,919 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-10 02:49:05,920 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:49:05,920 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:49:05,921 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:49:05,921 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:49:05,921 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:49:05,921 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:49:05,921 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:49:05,922 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:49:05,922 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:49:05,922 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-10 02:49:05,923 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:49:05,923 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:49:05,923 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:49:05,924 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-10 02:49:05,924 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-10 02:49:05,925 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:49:05,925 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-10 02:49:05,925 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:49:05,925 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:49:05,925 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:49:05,925 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-10 02:49:05,926 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-10 02:49:05,926 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-10 02:49:05,926 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-10 02:49:05,926 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-10 02:49:05,926 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:49:05,926 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-10 02:49:05,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:49:05,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:49:05,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:49:07,211 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:49:07,211 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:49:07,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:49:07 BoogieIcfgContainer [2019-09-10 02:49:07,215 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:49:07,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:49:07,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:49:07,221 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:49:07,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:49:05" (1/3) ... [2019-09-10 02:49:07,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30aa78f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:49:07, skipping insertion in model container [2019-09-10 02:49:07,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:05" (2/3) ... [2019-09-10 02:49:07,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30aa78f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:49:07, skipping insertion in model container [2019-09-10 02:49:07,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:49:07" (3/3) ... [2019-09-10 02:49:07,225 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product62.cil.c [2019-09-10 02:49:07,235 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:49:07,246 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:49:07,264 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:49:07,298 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:49:07,298 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:49:07,298 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:49:07,298 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:49:07,298 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:49:07,299 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:49:07,299 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:49:07,299 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:49:07,318 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states. [2019-09-10 02:49:07,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-10 02:49:07,332 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:07,333 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 02:49:07,335 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:07,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:07,340 INFO L82 PathProgramCache]: Analyzing trace with hash -519940638, now seen corresponding path program 1 times [2019-09-10 02:49:07,343 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:07,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:07,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:07,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:07,385 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:07,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:07,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:07,675 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:07,676 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:49:07,676 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:07,684 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:49:07,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:49:07,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:49:07,700 INFO L87 Difference]: Start difference. First operand 202 states. Second operand 2 states. [2019-09-10 02:49:07,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:07,740 INFO L93 Difference]: Finished difference Result 170 states and 201 transitions. [2019-09-10 02:49:07,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:49:07,741 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-10 02:49:07,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:07,756 INFO L225 Difference]: With dead ends: 170 [2019-09-10 02:49:07,756 INFO L226 Difference]: Without dead ends: 159 [2019-09-10 02:49:07,758 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:49:07,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2019-09-10 02:49:07,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2019-09-10 02:49:07,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2019-09-10 02:49:07,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 189 transitions. [2019-09-10 02:49:07,814 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 189 transitions. Word has length 51 [2019-09-10 02:49:07,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:07,815 INFO L475 AbstractCegarLoop]: Abstraction has 159 states and 189 transitions. [2019-09-10 02:49:07,815 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:49:07,815 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 189 transitions. [2019-09-10 02:49:07,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-10 02:49:07,819 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:07,819 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:07,820 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:07,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:07,820 INFO L82 PathProgramCache]: Analyzing trace with hash -183354494, now seen corresponding path program 1 times [2019-09-10 02:49:07,820 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:07,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:07,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:07,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:07,822 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:07,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:07,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:07,941 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:07,942 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:49:07,942 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:07,944 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:49:07,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:49:07,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:49:07,945 INFO L87 Difference]: Start difference. First operand 159 states and 189 transitions. Second operand 3 states. [2019-09-10 02:49:07,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:07,978 INFO L93 Difference]: Finished difference Result 150 states and 177 transitions. [2019-09-10 02:49:07,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:49:07,979 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-10 02:49:07,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:07,983 INFO L225 Difference]: With dead ends: 150 [2019-09-10 02:49:07,984 INFO L226 Difference]: Without dead ends: 150 [2019-09-10 02:49:07,985 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:49:07,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2019-09-10 02:49:07,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2019-09-10 02:49:07,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2019-09-10 02:49:08,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 177 transitions. [2019-09-10 02:49:08,000 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 177 transitions. Word has length 52 [2019-09-10 02:49:08,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:08,000 INFO L475 AbstractCegarLoop]: Abstraction has 150 states and 177 transitions. [2019-09-10 02:49:08,001 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:49:08,001 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 177 transitions. [2019-09-10 02:49:08,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-10 02:49:08,003 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:08,004 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 02:49:08,004 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:08,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:08,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1707012514, now seen corresponding path program 1 times [2019-09-10 02:49:08,004 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:08,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:08,005 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:08,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:08,006 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:08,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:08,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:08,194 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:08,195 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:49:08,195 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:08,195 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:49:08,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:49:08,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:49:08,196 INFO L87 Difference]: Start difference. First operand 150 states and 177 transitions. Second operand 7 states. [2019-09-10 02:49:08,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:08,645 INFO L93 Difference]: Finished difference Result 150 states and 176 transitions. [2019-09-10 02:49:08,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:49:08,645 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-09-10 02:49:08,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:08,648 INFO L225 Difference]: With dead ends: 150 [2019-09-10 02:49:08,648 INFO L226 Difference]: Without dead ends: 150 [2019-09-10 02:49:08,649 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-10 02:49:08,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2019-09-10 02:49:08,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2019-09-10 02:49:08,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2019-09-10 02:49:08,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 176 transitions. [2019-09-10 02:49:08,663 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 176 transitions. Word has length 57 [2019-09-10 02:49:08,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:08,663 INFO L475 AbstractCegarLoop]: Abstraction has 150 states and 176 transitions. [2019-09-10 02:49:08,664 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:49:08,665 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 176 transitions. [2019-09-10 02:49:08,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-09-10 02:49:08,671 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:08,672 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:08,672 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:08,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:08,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1819519357, now seen corresponding path program 1 times [2019-09-10 02:49:08,673 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:08,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:08,675 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:08,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:08,676 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:08,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:08,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:08,867 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:08,867 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:49:08,867 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:08,868 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:49:08,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:49:08,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:49:08,869 INFO L87 Difference]: Start difference. First operand 150 states and 176 transitions. Second operand 5 states. [2019-09-10 02:49:09,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:09,488 INFO L93 Difference]: Finished difference Result 266 states and 308 transitions. [2019-09-10 02:49:09,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:49:09,489 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 75 [2019-09-10 02:49:09,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:09,492 INFO L225 Difference]: With dead ends: 266 [2019-09-10 02:49:09,492 INFO L226 Difference]: Without dead ends: 266 [2019-09-10 02:49:09,493 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:49:09,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2019-09-10 02:49:09,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 247. [2019-09-10 02:49:09,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2019-09-10 02:49:09,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 282 transitions. [2019-09-10 02:49:09,524 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 282 transitions. Word has length 75 [2019-09-10 02:49:09,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:09,524 INFO L475 AbstractCegarLoop]: Abstraction has 247 states and 282 transitions. [2019-09-10 02:49:09,524 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:49:09,525 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 282 transitions. [2019-09-10 02:49:09,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-10 02:49:09,526 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:09,527 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:09,529 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:09,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:09,529 INFO L82 PathProgramCache]: Analyzing trace with hash 948942276, now seen corresponding path program 1 times [2019-09-10 02:49:09,530 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:09,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:09,536 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:09,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:09,536 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:09,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:09,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:09,691 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:09,691 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:49:09,691 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:09,693 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:49:09,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:49:09,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:49:09,694 INFO L87 Difference]: Start difference. First operand 247 states and 282 transitions. Second operand 6 states. [2019-09-10 02:49:09,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:09,975 INFO L93 Difference]: Finished difference Result 448 states and 511 transitions. [2019-09-10 02:49:09,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:49:09,978 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2019-09-10 02:49:09,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:09,989 INFO L225 Difference]: With dead ends: 448 [2019-09-10 02:49:09,990 INFO L226 Difference]: Without dead ends: 448 [2019-09-10 02:49:09,991 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-10 02:49:09,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2019-09-10 02:49:10,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 442. [2019-09-10 02:49:10,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2019-09-10 02:49:10,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 504 transitions. [2019-09-10 02:49:10,058 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 504 transitions. Word has length 89 [2019-09-10 02:49:10,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:10,059 INFO L475 AbstractCegarLoop]: Abstraction has 442 states and 504 transitions. [2019-09-10 02:49:10,059 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:49:10,060 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 504 transitions. [2019-09-10 02:49:10,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-10 02:49:10,064 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:10,064 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:10,065 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:10,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:10,066 INFO L82 PathProgramCache]: Analyzing trace with hash 1944159016, now seen corresponding path program 1 times [2019-09-10 02:49:10,066 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:10,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:10,068 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:10,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:10,068 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:10,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:10,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:10,327 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:10,327 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:49:10,328 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:10,328 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:49:10,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:49:10,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:49:10,330 INFO L87 Difference]: Start difference. First operand 442 states and 504 transitions. Second operand 7 states. [2019-09-10 02:49:11,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:11,150 INFO L93 Difference]: Finished difference Result 473 states and 553 transitions. [2019-09-10 02:49:11,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-10 02:49:11,151 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 93 [2019-09-10 02:49:11,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:11,157 INFO L225 Difference]: With dead ends: 473 [2019-09-10 02:49:11,157 INFO L226 Difference]: Without dead ends: 473 [2019-09-10 02:49:11,158 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-10 02:49:11,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2019-09-10 02:49:11,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 441. [2019-09-10 02:49:11,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2019-09-10 02:49:11,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 501 transitions. [2019-09-10 02:49:11,192 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 501 transitions. Word has length 93 [2019-09-10 02:49:11,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:11,194 INFO L475 AbstractCegarLoop]: Abstraction has 441 states and 501 transitions. [2019-09-10 02:49:11,194 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:49:11,194 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 501 transitions. [2019-09-10 02:49:11,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-10 02:49:11,201 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:11,201 INFO L399 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:11,202 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:11,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:11,202 INFO L82 PathProgramCache]: Analyzing trace with hash -412136482, now seen corresponding path program 1 times [2019-09-10 02:49:11,202 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:11,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:11,206 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:11,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:11,206 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:11,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:11,319 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:49:11,319 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:11,320 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:49:11,320 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:11,320 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:49:11,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:49:11,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:49:11,321 INFO L87 Difference]: Start difference. First operand 441 states and 501 transitions. Second operand 6 states. [2019-09-10 02:49:11,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:11,350 INFO L93 Difference]: Finished difference Result 455 states and 515 transitions. [2019-09-10 02:49:11,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:49:11,351 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 109 [2019-09-10 02:49:11,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:11,354 INFO L225 Difference]: With dead ends: 455 [2019-09-10 02:49:11,354 INFO L226 Difference]: Without dead ends: 455 [2019-09-10 02:49:11,355 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:49:11,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2019-09-10 02:49:11,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 451. [2019-09-10 02:49:11,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 451 states. [2019-09-10 02:49:11,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 511 transitions. [2019-09-10 02:49:11,372 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 511 transitions. Word has length 109 [2019-09-10 02:49:11,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:11,372 INFO L475 AbstractCegarLoop]: Abstraction has 451 states and 511 transitions. [2019-09-10 02:49:11,372 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:49:11,372 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 511 transitions. [2019-09-10 02:49:11,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-10 02:49:11,374 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:11,375 INFO L399 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:11,375 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:11,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:11,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1527025564, now seen corresponding path program 1 times [2019-09-10 02:49:11,375 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:11,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:11,377 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:11,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:11,377 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:11,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:11,506 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:49:11,507 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:11,507 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 02:49:11,507 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:11,508 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:49:11,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:49:11,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:49:11,509 INFO L87 Difference]: Start difference. First operand 451 states and 511 transitions. Second operand 8 states. [2019-09-10 02:49:11,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:11,538 INFO L93 Difference]: Finished difference Result 465 states and 525 transitions. [2019-09-10 02:49:11,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:49:11,538 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 109 [2019-09-10 02:49:11,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:11,541 INFO L225 Difference]: With dead ends: 465 [2019-09-10 02:49:11,541 INFO L226 Difference]: Without dead ends: 465 [2019-09-10 02:49:11,542 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:49:11,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2019-09-10 02:49:11,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 459. [2019-09-10 02:49:11,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2019-09-10 02:49:11,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 519 transitions. [2019-09-10 02:49:11,560 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 519 transitions. Word has length 109 [2019-09-10 02:49:11,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:11,561 INFO L475 AbstractCegarLoop]: Abstraction has 459 states and 519 transitions. [2019-09-10 02:49:11,561 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:49:11,561 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 519 transitions. [2019-09-10 02:49:11,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-10 02:49:11,563 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:11,563 INFO L399 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:11,564 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:11,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:11,564 INFO L82 PathProgramCache]: Analyzing trace with hash -1998771717, now seen corresponding path program 1 times [2019-09-10 02:49:11,564 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:11,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:11,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:11,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:11,566 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:11,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:11,643 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:49:11,643 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:11,643 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 02:49:11,644 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:11,644 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 02:49:11,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 02:49:11,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:49:11,645 INFO L87 Difference]: Start difference. First operand 459 states and 519 transitions. Second operand 4 states. [2019-09-10 02:49:11,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:11,894 INFO L93 Difference]: Finished difference Result 931 states and 1097 transitions. [2019-09-10 02:49:11,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 02:49:11,895 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 109 [2019-09-10 02:49:11,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:11,903 INFO L225 Difference]: With dead ends: 931 [2019-09-10 02:49:11,903 INFO L226 Difference]: Without dead ends: 931 [2019-09-10 02:49:11,904 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:49:11,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2019-09-10 02:49:11,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 916. [2019-09-10 02:49:11,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 916 states. [2019-09-10 02:49:11,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1065 transitions. [2019-09-10 02:49:11,944 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1065 transitions. Word has length 109 [2019-09-10 02:49:11,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:11,944 INFO L475 AbstractCegarLoop]: Abstraction has 916 states and 1065 transitions. [2019-09-10 02:49:11,944 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 02:49:11,945 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1065 transitions. [2019-09-10 02:49:11,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-09-10 02:49:11,948 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:11,948 INFO L399 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:11,948 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:11,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:11,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1262789055, now seen corresponding path program 1 times [2019-09-10 02:49:11,949 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:11,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:11,951 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:11,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:11,952 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:11,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:12,125 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-10 02:49:12,126 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:49:12,126 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:49:12,127 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 114 with the following transitions: [2019-09-10 02:49:12,141 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [94], [110], [114], [115], [116], [131], [134], [136], [145], [149], [153], [156], [161], [164], [169], [175], [178], [188], [189], [192], [194], [197], [199], [202], [205], [217], [218], [228], [230], [235], [238], [241], [243], [248], [250], [251], [257], [261], [294], [295], [305], [308], [310], [313], [323], [326], [330], [331], [334], [335], [350], [353], [354], [355], [379], [381], [382], [449], [450], [457], [459], [460], [468], [469], [470], [471], [472], [473], [474], [475], [476], [516], [517], [518], [519], [520], [521], [524], [528], [529], [530], [531], [532], [534], [535], [536], [537], [538], [539], [542], [543], [544], [550], [551], [552], [553], [564], [565], [568], [569], [570], [572], [573], [578], [579], [580] [2019-09-10 02:49:12,200 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:49:12,201 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:49:12,293 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:49:12,294 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 128 variables. [2019-09-10 02:49:12,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:12,300 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:49:12,386 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:49:12,386 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:49:12,396 INFO L420 sIntCurrentIteration]: We unified 112 AI predicates to 112 [2019-09-10 02:49:12,397 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:49:12,398 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:49:12,399 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [13] total 13 [2019-09-10 02:49:12,399 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:12,399 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:49:12,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:49:12,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:49:12,400 INFO L87 Difference]: Start difference. First operand 916 states and 1065 transitions. Second operand 2 states. [2019-09-10 02:49:12,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:12,401 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:49:12,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:49:12,401 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 113 [2019-09-10 02:49:12,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:12,401 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:49:12,402 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:49:12,403 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:49:12,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:49:12,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:49:12,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:49:12,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:49:12,404 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 113 [2019-09-10 02:49:12,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:12,404 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:49:12,404 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:49:12,404 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:49:12,405 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:49:12,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:49:12 BoogieIcfgContainer [2019-09-10 02:49:12,411 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:49:12,415 INFO L168 Benchmark]: Toolchain (without parser) took 7385.89 ms. Allocated memory was 138.4 MB in the beginning and 334.0 MB in the end (delta: 195.6 MB). Free memory was 84.7 MB in the beginning and 135.2 MB in the end (delta: -50.6 MB). Peak memory consumption was 145.0 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:12,416 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 104.5 MB in the beginning and 104.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:49:12,418 INFO L168 Benchmark]: CACSL2BoogieTranslator took 666.37 ms. Allocated memory was 138.4 MB in the beginning and 199.2 MB in the end (delta: 60.8 MB). Free memory was 84.5 MB in the beginning and 162.9 MB in the end (delta: -78.4 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:12,420 INFO L168 Benchmark]: Boogie Preprocessor took 119.75 ms. Allocated memory is still 199.2 MB. Free memory was 162.9 MB in the beginning and 158.4 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:12,427 INFO L168 Benchmark]: RCFGBuilder took 1400.33 ms. Allocated memory was 199.2 MB in the beginning and 220.7 MB in the end (delta: 21.5 MB). Free memory was 158.4 MB in the beginning and 185.7 MB in the end (delta: -27.2 MB). Peak memory consumption was 91.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:12,428 INFO L168 Benchmark]: TraceAbstraction took 5194.51 ms. Allocated memory was 220.7 MB in the beginning and 334.0 MB in the end (delta: 113.2 MB). Free memory was 185.7 MB in the beginning and 135.2 MB in the end (delta: 50.4 MB). Peak memory consumption was 163.7 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:12,432 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 104.5 MB in the beginning and 104.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 666.37 ms. Allocated memory was 138.4 MB in the beginning and 199.2 MB in the end (delta: 60.8 MB). Free memory was 84.5 MB in the beginning and 162.9 MB in the end (delta: -78.4 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.75 ms. Allocated memory is still 199.2 MB. Free memory was 162.9 MB in the beginning and 158.4 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1400.33 ms. Allocated memory was 199.2 MB in the beginning and 220.7 MB in the end (delta: 21.5 MB). Free memory was 158.4 MB in the beginning and 185.7 MB in the end (delta: -27.2 MB). Peak memory consumption was 91.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5194.51 ms. Allocated memory was 220.7 MB in the beginning and 334.0 MB in the end (delta: 113.2 MB). Free memory was 185.7 MB in the beginning and 135.2 MB in the end (delta: 50.4 MB). Peak memory consumption was 163.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 516]: 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 44 procedures, 261 locations, 1 error locations. SAFE Result, 5.1s OverallTime, 10 OverallIterations, 2 TraceHistogramMax, 2.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1754 SDtfs, 951 SDslu, 3637 SDs, 0 SdLazy, 1248 SolverSat, 282 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 208 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=916occurred in iteration=9, 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, 1.0 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 82 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 857 NumberOfCodeBlocks, 857 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 847 ConstructedInterpolants, 0 QuantifiedInterpolants, 126091 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 10/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...