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_product46.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:57:36,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:57:36,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:57:36,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:57:36,907 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:57:36,908 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:57:36,911 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:57:36,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:57:36,920 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:57:36,925 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:57:36,926 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:57:36,928 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:57:36,928 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:57:36,930 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:57:36,931 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:57:36,932 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:57:36,933 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:57:36,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:57:36,939 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:57:36,942 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:57:36,944 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:57:36,945 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:57:36,949 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:57:36,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:57:36,955 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:57:36,955 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:57:36,955 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:57:36,958 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:57:36,959 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:57:36,960 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:57:36,960 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:57:36,961 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:57:36,961 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:57:36,962 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:57:36,963 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:57:36,963 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:57:36,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:57:36,964 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:57:36,964 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:57:36,965 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:57:36,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:57:36,967 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 [2019-10-03 02:57:36,991 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:57:36,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:57:36,992 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:57:36,992 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:57:36,993 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:57:36,993 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:57:36,993 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:57:36,994 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:57:36,994 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:57:36,994 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:57:36,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:57:36,997 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:57:36,997 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:57:36,998 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:57:36,998 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:57:36,998 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:57:36,999 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:57:36,999 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:57:36,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:57:37,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:57:37,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:57:37,000 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:57:37,000 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:57:37,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:57:37,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:57:37,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:57:37,001 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:57:37,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:57:37,002 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:57:37,002 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:57:37,066 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:57:37,086 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:57:37,093 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:57:37,094 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:57:37,095 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:57:37,096 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product46.cil.c [2019-10-03 02:57:37,166 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f596f97eb/9d17109484af4c22b2e61e4de290063c/FLAGc5ad0282c [2019-10-03 02:57:37,706 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:57:37,707 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product46.cil.c [2019-10-03 02:57:37,721 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f596f97eb/9d17109484af4c22b2e61e4de290063c/FLAGc5ad0282c [2019-10-03 02:57:38,000 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f596f97eb/9d17109484af4c22b2e61e4de290063c [2019-10-03 02:57:38,009 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:57:38,010 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:57:38,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:57:38,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:57:38,014 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:57:38,015 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:57:38" (1/1) ... [2019-10-03 02:57:38,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b3ade3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:38, skipping insertion in model container [2019-10-03 02:57:38,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:57:38" (1/1) ... [2019-10-03 02:57:38,024 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:57:38,098 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:57:38,523 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:57:38,536 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:57:38,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:57:38,680 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:57:38,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:38 WrapperNode [2019-10-03 02:57:38,681 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:57:38,682 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:57:38,682 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:57:38,682 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:57:38,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:38" (1/1) ... [2019-10-03 02:57:38,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:38" (1/1) ... [2019-10-03 02:57:38,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:38" (1/1) ... [2019-10-03 02:57:38,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:38" (1/1) ... [2019-10-03 02:57:38,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:38" (1/1) ... [2019-10-03 02:57:38,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:38" (1/1) ... [2019-10-03 02:57:38,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:38" (1/1) ... [2019-10-03 02:57:38,814 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:57:38,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:57:38,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:57:38,815 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:57:38,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:38" (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 [2019-10-03 02:57:38,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:57:38,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:57:38,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:57:38,871 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:57:38,871 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:57:38,871 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:57:38,871 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:57:38,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:57:38,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:57:38,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:57:38,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:57:38,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:57:38,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:57:38,872 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-03 02:57:38,873 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-03 02:57:38,873 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-03 02:57:38,873 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-03 02:57:38,873 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-03 02:57:38,873 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-03 02:57:38,873 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-03 02:57:38,874 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:57:38,874 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:57:38,874 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:57:38,874 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:57:38,874 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:57:38,874 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:57:38,875 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-03 02:57:38,875 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-03 02:57:38,875 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-03 02:57:38,875 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2019-10-03 02:57:38,875 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-03 02:57:38,875 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-03 02:57:38,876 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-03 02:57:38,876 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-03 02:57:38,876 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-03 02:57:38,876 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-03 02:57:38,876 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-03 02:57:38,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:57:38,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-03 02:57:38,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-03 02:57:38,877 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:57:38,877 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:57:38,877 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:57:38,877 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:57:38,877 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:57:38,878 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:57:38,878 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:57:38,878 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:57:38,878 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:57:38,878 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:57:38,878 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:57:38,879 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:57:38,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:57:38,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:57:38,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:57:38,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:57:38,879 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:57:38,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:57:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:57:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:57:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:57:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:57:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:57:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:57:38,881 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:57:38,881 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-03 02:57:38,881 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-03 02:57:38,881 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-03 02:57:38,881 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-03 02:57:38,881 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-03 02:57:38,881 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-03 02:57:38,882 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-03 02:57:38,882 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:57:38,882 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:57:38,882 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-03 02:57:38,882 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:57:38,882 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:57:38,883 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-03 02:57:38,883 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:57:38,883 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:57:38,883 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:57:38,883 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-03 02:57:38,883 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-03 02:57:38,884 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-03 02:57:38,884 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-03 02:57:38,884 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-03 02:57:38,884 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-03 02:57:38,884 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-03 02:57:38,884 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-03 02:57:38,884 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-03 02:57:38,885 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-03 02:57:38,885 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2019-10-03 02:57:38,885 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:57:38,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:57:38,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:57:38,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:57:40,031 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:57:40,032 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:57:40,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:57:40 BoogieIcfgContainer [2019-10-03 02:57:40,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:57:40,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:57:40,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:57:40,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:57:40,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:57:38" (1/3) ... [2019-10-03 02:57:40,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f45130 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:57:40, skipping insertion in model container [2019-10-03 02:57:40,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:38" (2/3) ... [2019-10-03 02:57:40,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f45130 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:57:40, skipping insertion in model container [2019-10-03 02:57:40,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:57:40" (3/3) ... [2019-10-03 02:57:40,043 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product46.cil.c [2019-10-03 02:57:40,054 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:57:40,066 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:57:40,084 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:57:40,115 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:57:40,115 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:57:40,116 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:57:40,116 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:57:40,117 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:57:40,117 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:57:40,117 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:57:40,118 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:57:40,148 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states. [2019-10-03 02:57:40,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-03 02:57:40,162 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:40,163 INFO L411 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] [2019-10-03 02:57:40,166 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:40,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:40,173 INFO L82 PathProgramCache]: Analyzing trace with hash -1550424879, now seen corresponding path program 1 times [2019-10-03 02:57:40,175 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:40,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:40,239 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:40,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:40,240 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:40,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:40,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:40,588 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:40,589 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:57:40,589 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:40,596 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:57:40,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:57:40,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:57:40,614 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 2 states. [2019-10-03 02:57:40,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:40,647 INFO L93 Difference]: Finished difference Result 150 states and 176 transitions. [2019-10-03 02:57:40,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:57:40,649 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-10-03 02:57:40,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:40,669 INFO L225 Difference]: With dead ends: 150 [2019-10-03 02:57:40,670 INFO L226 Difference]: Without dead ends: 139 [2019-10-03 02:57:40,672 INFO L640 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 [2019-10-03 02:57:40,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2019-10-03 02:57:40,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2019-10-03 02:57:40,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2019-10-03 02:57:40,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 164 transitions. [2019-10-03 02:57:40,729 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 164 transitions. Word has length 51 [2019-10-03 02:57:40,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:40,730 INFO L475 AbstractCegarLoop]: Abstraction has 139 states and 164 transitions. [2019-10-03 02:57:40,730 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:57:40,730 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 164 transitions. [2019-10-03 02:57:40,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-03 02:57:40,734 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:40,734 INFO L411 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] [2019-10-03 02:57:40,734 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:40,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:40,735 INFO L82 PathProgramCache]: Analyzing trace with hash 2147140265, now seen corresponding path program 1 times [2019-10-03 02:57:40,736 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:40,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:40,740 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:40,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:40,740 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:40,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:40,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:40,904 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:40,904 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:57:40,904 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:40,908 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:57:40,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:57:40,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:57:40,910 INFO L87 Difference]: Start difference. First operand 139 states and 164 transitions. Second operand 3 states. [2019-10-03 02:57:40,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:40,946 INFO L93 Difference]: Finished difference Result 130 states and 152 transitions. [2019-10-03 02:57:40,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:57:40,948 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-10-03 02:57:40,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:40,951 INFO L225 Difference]: With dead ends: 130 [2019-10-03 02:57:40,952 INFO L226 Difference]: Without dead ends: 130 [2019-10-03 02:57:40,954 INFO L640 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 [2019-10-03 02:57:40,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2019-10-03 02:57:40,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2019-10-03 02:57:40,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2019-10-03 02:57:40,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 152 transitions. [2019-10-03 02:57:40,984 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 152 transitions. Word has length 52 [2019-10-03 02:57:40,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:40,985 INFO L475 AbstractCegarLoop]: Abstraction has 130 states and 152 transitions. [2019-10-03 02:57:40,985 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:57:40,985 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 152 transitions. [2019-10-03 02:57:40,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-03 02:57:40,989 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:40,989 INFO L411 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] [2019-10-03 02:57:40,991 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:40,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:40,991 INFO L82 PathProgramCache]: Analyzing trace with hash 871775649, now seen corresponding path program 1 times [2019-10-03 02:57:40,991 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:40,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:40,994 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:40,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:40,994 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:41,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:41,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:41,184 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:41,184 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:57:41,185 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:41,185 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:57:41,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:57:41,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:57:41,186 INFO L87 Difference]: Start difference. First operand 130 states and 152 transitions. Second operand 7 states. [2019-10-03 02:57:41,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:41,549 INFO L93 Difference]: Finished difference Result 130 states and 151 transitions. [2019-10-03 02:57:41,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:57:41,549 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-10-03 02:57:41,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:41,552 INFO L225 Difference]: With dead ends: 130 [2019-10-03 02:57:41,552 INFO L226 Difference]: Without dead ends: 130 [2019-10-03 02:57:41,552 INFO L640 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 [2019-10-03 02:57:41,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2019-10-03 02:57:41,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2019-10-03 02:57:41,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2019-10-03 02:57:41,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 151 transitions. [2019-10-03 02:57:41,563 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 151 transitions. Word has length 57 [2019-10-03 02:57:41,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:41,564 INFO L475 AbstractCegarLoop]: Abstraction has 130 states and 151 transitions. [2019-10-03 02:57:41,564 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:57:41,564 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 151 transitions. [2019-10-03 02:57:41,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-10-03 02:57:41,567 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:41,567 INFO L411 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] [2019-10-03 02:57:41,567 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:41,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:41,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1442711131, now seen corresponding path program 1 times [2019-10-03 02:57:41,568 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:41,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:41,571 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:41,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:41,571 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:41,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:41,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:41,719 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:41,719 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:57:41,719 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:41,719 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:57:41,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:57:41,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:57:41,720 INFO L87 Difference]: Start difference. First operand 130 states and 151 transitions. Second operand 5 states. [2019-10-03 02:57:42,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:42,274 INFO L93 Difference]: Finished difference Result 238 states and 277 transitions. [2019-10-03 02:57:42,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:57:42,275 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2019-10-03 02:57:42,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:42,279 INFO L225 Difference]: With dead ends: 238 [2019-10-03 02:57:42,279 INFO L226 Difference]: Without dead ends: 238 [2019-10-03 02:57:42,280 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:57:42,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2019-10-03 02:57:42,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 219. [2019-10-03 02:57:42,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2019-10-03 02:57:42,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 251 transitions. [2019-10-03 02:57:42,306 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 251 transitions. Word has length 70 [2019-10-03 02:57:42,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:42,307 INFO L475 AbstractCegarLoop]: Abstraction has 219 states and 251 transitions. [2019-10-03 02:57:42,307 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:57:42,307 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 251 transitions. [2019-10-03 02:57:42,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-10-03 02:57:42,310 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:42,310 INFO L411 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] [2019-10-03 02:57:42,311 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:42,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:42,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1583652076, now seen corresponding path program 1 times [2019-10-03 02:57:42,315 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:42,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:42,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:42,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:42,321 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:42,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:42,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:42,472 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:42,473 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:57:42,473 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:42,475 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:57:42,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:57:42,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:57:42,476 INFO L87 Difference]: Start difference. First operand 219 states and 251 transitions. Second operand 6 states. [2019-10-03 02:57:42,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:42,684 INFO L93 Difference]: Finished difference Result 392 states and 449 transitions. [2019-10-03 02:57:42,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:57:42,685 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2019-10-03 02:57:42,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:42,689 INFO L225 Difference]: With dead ends: 392 [2019-10-03 02:57:42,689 INFO L226 Difference]: Without dead ends: 392 [2019-10-03 02:57:42,690 INFO L640 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 [2019-10-03 02:57:42,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2019-10-03 02:57:42,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 386. [2019-10-03 02:57:42,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2019-10-03 02:57:42,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 442 transitions. [2019-10-03 02:57:42,717 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 442 transitions. Word has length 84 [2019-10-03 02:57:42,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:42,718 INFO L475 AbstractCegarLoop]: Abstraction has 386 states and 442 transitions. [2019-10-03 02:57:42,718 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:57:42,718 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 442 transitions. [2019-10-03 02:57:42,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-03 02:57:42,721 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:42,721 INFO L411 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] [2019-10-03 02:57:42,721 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:42,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:42,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1422526648, now seen corresponding path program 1 times [2019-10-03 02:57:42,722 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:42,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:42,725 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:42,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:42,725 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:42,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:42,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:42,852 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:42,852 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:57:42,853 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:42,853 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:57:42,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:57:42,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:57:42,854 INFO L87 Difference]: Start difference. First operand 386 states and 442 transitions. Second operand 7 states. [2019-10-03 02:57:43,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:43,602 INFO L93 Difference]: Finished difference Result 417 states and 491 transitions. [2019-10-03 02:57:43,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-03 02:57:43,603 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 88 [2019-10-03 02:57:43,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:43,606 INFO L225 Difference]: With dead ends: 417 [2019-10-03 02:57:43,607 INFO L226 Difference]: Without dead ends: 417 [2019-10-03 02:57:43,607 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-03 02:57:43,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2019-10-03 02:57:43,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 385. [2019-10-03 02:57:43,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2019-10-03 02:57:43,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 439 transitions. [2019-10-03 02:57:43,629 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 439 transitions. Word has length 88 [2019-10-03 02:57:43,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:43,630 INFO L475 AbstractCegarLoop]: Abstraction has 385 states and 439 transitions. [2019-10-03 02:57:43,630 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:57:43,630 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 439 transitions. [2019-10-03 02:57:43,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-10-03 02:57:43,632 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:43,633 INFO L411 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] [2019-10-03 02:57:43,633 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:43,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:43,633 INFO L82 PathProgramCache]: Analyzing trace with hash -1956386739, now seen corresponding path program 1 times [2019-10-03 02:57:43,634 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:43,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:43,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:43,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:43,636 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:43,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:43,732 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:57:43,732 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:43,732 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:57:43,732 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:43,734 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:57:43,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:57:43,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:57:43,735 INFO L87 Difference]: Start difference. First operand 385 states and 439 transitions. Second operand 6 states. [2019-10-03 02:57:43,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:43,774 INFO L93 Difference]: Finished difference Result 399 states and 453 transitions. [2019-10-03 02:57:43,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:57:43,778 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2019-10-03 02:57:43,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:43,781 INFO L225 Difference]: With dead ends: 399 [2019-10-03 02:57:43,781 INFO L226 Difference]: Without dead ends: 399 [2019-10-03 02:57:43,782 INFO L640 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 [2019-10-03 02:57:43,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2019-10-03 02:57:43,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 395. [2019-10-03 02:57:43,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2019-10-03 02:57:43,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 449 transitions. [2019-10-03 02:57:43,800 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 449 transitions. Word has length 104 [2019-10-03 02:57:43,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:43,800 INFO L475 AbstractCegarLoop]: Abstraction has 395 states and 449 transitions. [2019-10-03 02:57:43,800 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:57:43,801 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 449 transitions. [2019-10-03 02:57:43,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-10-03 02:57:43,802 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:43,803 INFO L411 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] [2019-10-03 02:57:43,803 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:43,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:43,803 INFO L82 PathProgramCache]: Analyzing trace with hash -28114037, now seen corresponding path program 1 times [2019-10-03 02:57:43,804 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:43,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:43,806 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:43,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:43,806 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:43,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:43,891 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:57:43,892 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:43,892 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-03 02:57:43,892 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:43,893 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-03 02:57:43,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-03 02:57:43,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:57:43,893 INFO L87 Difference]: Start difference. First operand 395 states and 449 transitions. Second operand 8 states. [2019-10-03 02:57:43,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:43,931 INFO L93 Difference]: Finished difference Result 409 states and 463 transitions. [2019-10-03 02:57:43,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:57:43,931 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 104 [2019-10-03 02:57:43,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:43,934 INFO L225 Difference]: With dead ends: 409 [2019-10-03 02:57:43,934 INFO L226 Difference]: Without dead ends: 409 [2019-10-03 02:57:43,935 INFO L640 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 [2019-10-03 02:57:43,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2019-10-03 02:57:43,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 403. [2019-10-03 02:57:43,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2019-10-03 02:57:43,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 457 transitions. [2019-10-03 02:57:43,952 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 457 transitions. Word has length 104 [2019-10-03 02:57:43,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:43,953 INFO L475 AbstractCegarLoop]: Abstraction has 403 states and 457 transitions. [2019-10-03 02:57:43,953 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-03 02:57:43,953 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 457 transitions. [2019-10-03 02:57:43,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-10-03 02:57:43,955 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:43,956 INFO L411 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] [2019-10-03 02:57:43,956 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:43,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:43,956 INFO L82 PathProgramCache]: Analyzing trace with hash -268654166, now seen corresponding path program 1 times [2019-10-03 02:57:43,956 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:43,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:43,959 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:43,959 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:43,959 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:43,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:44,042 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:57:44,042 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:44,043 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-03 02:57:44,043 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:44,043 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-03 02:57:44,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-03 02:57:44,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:57:44,044 INFO L87 Difference]: Start difference. First operand 403 states and 457 transitions. Second operand 4 states. [2019-10-03 02:57:44,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:44,260 INFO L93 Difference]: Finished difference Result 813 states and 963 transitions. [2019-10-03 02:57:44,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-03 02:57:44,261 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 104 [2019-10-03 02:57:44,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:44,267 INFO L225 Difference]: With dead ends: 813 [2019-10-03 02:57:44,267 INFO L226 Difference]: Without dead ends: 813 [2019-10-03 02:57:44,268 INFO L640 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 [2019-10-03 02:57:44,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2019-10-03 02:57:44,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 798. [2019-10-03 02:57:44,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 798 states. [2019-10-03 02:57:44,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 931 transitions. [2019-10-03 02:57:44,299 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 931 transitions. Word has length 104 [2019-10-03 02:57:44,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:44,300 INFO L475 AbstractCegarLoop]: Abstraction has 798 states and 931 transitions. [2019-10-03 02:57:44,300 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-03 02:57:44,300 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 931 transitions. [2019-10-03 02:57:44,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-03 02:57:44,302 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:44,303 INFO L411 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] [2019-10-03 02:57:44,303 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:44,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:44,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1852641244, now seen corresponding path program 1 times [2019-10-03 02:57:44,304 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:44,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:44,306 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:44,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:44,306 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:44,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:44,446 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-03 02:57:44,446 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:57:44,446 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:57:44,447 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 109 with the following transitions: [2019-10-03 02:57:44,449 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [83], [99], [103], [104], [105], [120], [123], [125], [134], [138], [142], [145], [150], [153], [158], [164], [167], [177], [179], [182], [184], [187], [190], [211], [212], [213], [215], [220], [223], [226], [228], [233], [235], [236], [237], [238], [244], [248], [292], [296], [297], [300], [301], [304], [306], [309], [319], [320], [321], [345], [347], [348], [366], [367], [417], [418], [425], [427], [428], [436], [437], [438], [439], [440], [441], [442], [443], [444], [482], [483], [484], [485], [486], [487], [490], [494], [495], [496], [497], [498], [500], [501], [502], [503], [504], [505], [508], [509], [510], [516], [517], [518], [519], [526], [527], [528], [530], [531], [536], [537], [538] [2019-10-03 02:57:44,495 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:57:44,495 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:57:44,603 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:57:44,605 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. [2019-10-03 02:57:44,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:44,610 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:57:44,683 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:57:44,684 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:57:44,693 INFO L420 sIntCurrentIteration]: We unified 107 AI predicates to 107 [2019-10-03 02:57:44,693 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:57:44,697 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:57:44,698 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [13] total 13 [2019-10-03 02:57:44,698 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:44,698 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:57:44,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:57:44,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:57:44,699 INFO L87 Difference]: Start difference. First operand 798 states and 931 transitions. Second operand 2 states. [2019-10-03 02:57:44,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:44,700 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:57:44,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:57:44,700 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 108 [2019-10-03 02:57:44,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:44,700 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:57:44,701 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:57:44,702 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:57:44,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:57:44,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:57:44,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:57:44,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:57:44,703 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 108 [2019-10-03 02:57:44,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:44,703 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:57:44,703 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:57:44,704 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:57:44,704 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:57:44,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:57:44 BoogieIcfgContainer [2019-10-03 02:57:44,709 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:57:44,712 INFO L168 Benchmark]: Toolchain (without parser) took 6700.17 ms. Allocated memory was 141.6 MB in the beginning and 313.5 MB in the end (delta: 172.0 MB). Free memory was 88.0 MB in the beginning and 101.3 MB in the end (delta: -13.3 MB). Peak memory consumption was 158.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:44,712 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 141.6 MB. Free memory is still 107.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-03 02:57:44,713 INFO L168 Benchmark]: CACSL2BoogieTranslator took 670.15 ms. Allocated memory was 141.6 MB in the beginning and 200.8 MB in the end (delta: 59.2 MB). Free memory was 87.6 MB in the beginning and 163.6 MB in the end (delta: -76.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:44,714 INFO L168 Benchmark]: Boogie Preprocessor took 132.25 ms. Allocated memory is still 200.8 MB. Free memory was 163.6 MB in the beginning and 159.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:44,715 INFO L168 Benchmark]: RCFGBuilder took 1219.46 ms. Allocated memory was 200.8 MB in the beginning and 228.6 MB in the end (delta: 27.8 MB). Free memory was 159.4 MB in the beginning and 189.5 MB in the end (delta: -30.1 MB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:44,716 INFO L168 Benchmark]: TraceAbstraction took 4674.23 ms. Allocated memory was 228.6 MB in the beginning and 313.5 MB in the end (delta: 84.9 MB). Free memory was 189.5 MB in the beginning and 101.3 MB in the end (delta: 88.2 MB). Peak memory consumption was 173.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:44,720 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 141.6 MB. Free memory is still 107.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 670.15 ms. Allocated memory was 141.6 MB in the beginning and 200.8 MB in the end (delta: 59.2 MB). Free memory was 87.6 MB in the beginning and 163.6 MB in the end (delta: -76.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 132.25 ms. Allocated memory is still 200.8 MB. Free memory was 163.6 MB in the beginning and 159.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1219.46 ms. Allocated memory was 200.8 MB in the beginning and 228.6 MB in the end (delta: 27.8 MB). Free memory was 159.4 MB in the beginning and 189.5 MB in the end (delta: -30.1 MB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4674.23 ms. Allocated memory was 228.6 MB in the beginning and 313.5 MB in the end (delta: 84.9 MB). Free memory was 189.5 MB in the beginning and 101.3 MB in the end (delta: 88.2 MB). Peak memory consumption was 173.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 858]: 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 41 procedures, 241 locations, 1 error locations. SAFE Result, 4.6s OverallTime, 10 OverallIterations, 2 TraceHistogramMax, 2.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1508 SDtfs, 823 SDslu, 3097 SDs, 0 SdLazy, 1099 SolverSat, 251 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 199 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=798occurred 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, 1.0373831775700935 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, 0.4s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 822 NumberOfCodeBlocks, 822 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 812 ConstructedInterpolants, 0 QuantifiedInterpolants, 114292 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...