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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product64.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:37:23,845 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:37:23,848 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:37:23,863 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:37:23,864 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:37:23,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:37:23,867 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:37:23,877 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:37:23,879 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:37:23,880 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:37:23,881 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:37:23,883 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:37:23,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:37:23,884 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:37:23,885 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:37:23,886 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:37:23,887 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:37:23,888 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:37:23,893 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:37:23,895 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:37:23,896 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:37:23,897 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:37:23,898 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:37:23,899 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:37:23,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:37:23,901 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:37:23,901 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:37:23,902 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:37:23,903 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:37:23,904 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:37:23,904 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:37:23,905 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:37:23,905 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:37:23,906 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:37:23,907 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:37:23,907 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:37:23,908 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:37:23,908 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:37:23,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:37:23,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:37:23,910 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:37:23,910 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 19:37:23,931 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:37:23,931 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:37:23,934 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:37:23,935 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:37:23,935 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:37:23,935 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:37:23,938 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:37:23,939 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:37:23,939 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:37:23,939 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:37:23,939 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:37:23,939 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:37:23,940 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:37:23,940 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:37:23,940 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:37:23,940 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:37:23,940 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:37:23,941 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:37:23,941 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:37:23,941 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:37:23,944 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:37:23,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:37:23,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:37:23,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:37:23,945 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:37:23,945 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:37:23,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:37:23,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:37:23,946 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:37:24,244 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:37:24,262 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:37:24,266 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:37:24,267 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:37:24,268 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:37:24,269 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product64.cil.c [2019-10-13 19:37:24,344 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6f5110b2/11c1b678f49d401cab67430b8b90cf7d/FLAGc64ee53b8 [2019-10-13 19:37:24,896 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:37:24,897 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product64.cil.c [2019-10-13 19:37:24,918 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6f5110b2/11c1b678f49d401cab67430b8b90cf7d/FLAGc64ee53b8 [2019-10-13 19:37:25,181 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6f5110b2/11c1b678f49d401cab67430b8b90cf7d [2019-10-13 19:37:25,190 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:37:25,192 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:37:25,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:37:25,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:37:25,196 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:37:25,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:37:25" (1/1) ... [2019-10-13 19:37:25,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4626f4a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:25, skipping insertion in model container [2019-10-13 19:37:25,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:37:25" (1/1) ... [2019-10-13 19:37:25,208 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:37:25,273 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:37:25,692 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:37:25,707 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:37:25,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:37:25,852 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:37:25,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:25 WrapperNode [2019-10-13 19:37:25,853 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:37:25,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:37:25,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:37:25,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:37:25,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:25" (1/1) ... [2019-10-13 19:37:25,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:25" (1/1) ... [2019-10-13 19:37:25,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:25" (1/1) ... [2019-10-13 19:37:25,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:25" (1/1) ... [2019-10-13 19:37:25,921 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:25" (1/1) ... [2019-10-13 19:37:25,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:25" (1/1) ... [2019-10-13 19:37:25,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:25" (1/1) ... [2019-10-13 19:37:25,961 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:37:25,962 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:37:25,962 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:37:25,962 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:37:25,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:25" (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 [2019-10-13 19:37:26,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:37:26,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:37:26,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 19:37:26,016 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 19:37:26,016 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 19:37:26,017 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 19:37:26,017 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 19:37:26,017 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 19:37:26,017 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 19:37:26,017 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 19:37:26,017 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 19:37:26,018 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 19:37:26,018 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 19:37:26,018 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 19:37:26,018 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 19:37:26,018 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 19:37:26,019 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 19:37:26,019 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 19:37:26,019 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 19:37:26,019 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 19:37:26,019 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-13 19:37:26,019 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-13 19:37:26,020 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 19:37:26,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 19:37:26,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-13 19:37:26,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-13 19:37:26,020 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 19:37:26,020 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 19:37:26,021 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 19:37:26,021 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 19:37:26,021 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 19:37:26,021 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 19:37:26,021 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 19:37:26,021 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 19:37:26,022 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 19:37:26,022 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 19:37:26,022 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 19:37:26,022 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 19:37:26,022 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:37:26,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 19:37:26,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 19:37:26,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 19:37:26,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 19:37:26,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 19:37:26,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 19:37:26,023 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:37:26,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:37:26,024 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 19:37:26,024 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 19:37:26,024 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 19:37:26,024 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 19:37:26,024 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 19:37:26,024 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 19:37:26,025 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 19:37:26,025 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 19:37:26,025 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 19:37:26,025 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 19:37:26,025 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 19:37:26,025 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 19:37:26,025 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 19:37:26,026 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 19:37:26,026 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 19:37:26,026 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-13 19:37:26,026 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-13 19:37:26,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-13 19:37:26,026 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 19:37:26,026 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 19:37:26,027 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 19:37:26,027 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 19:37:26,027 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 19:37:26,027 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 19:37:26,027 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 19:37:26,027 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 19:37:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:37:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 19:37:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 19:37:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 19:37:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 19:37:26,028 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 19:37:26,029 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-13 19:37:26,029 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 19:37:26,029 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 19:37:26,029 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 19:37:26,029 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 19:37:26,029 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:37:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 19:37:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 19:37:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 19:37:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 19:37:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 19:37:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 19:37:26,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:37:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 19:37:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 19:37:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:37:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 19:37:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 19:37:26,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:37:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 19:37:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 19:37:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 19:37:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:37:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:37:26,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:37:27,125 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:37:27,126 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 19:37:27,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:37:27 BoogieIcfgContainer [2019-10-13 19:37:27,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:37:27,130 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:37:27,131 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:37:27,134 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:37:27,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:37:25" (1/3) ... [2019-10-13 19:37:27,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16278340 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:37:27, skipping insertion in model container [2019-10-13 19:37:27,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:25" (2/3) ... [2019-10-13 19:37:27,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16278340 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:37:27, skipping insertion in model container [2019-10-13 19:37:27,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:37:27" (3/3) ... [2019-10-13 19:37:27,139 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product64.cil.c [2019-10-13 19:37:27,149 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:37:27,159 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:37:27,170 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:37:27,205 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:37:27,206 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:37:27,206 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:37:27,206 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:37:27,207 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:37:27,208 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:37:27,208 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:37:27,209 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:37:27,237 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2019-10-13 19:37:27,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-13 19:37:27,247 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:27,248 INFO L380 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] [2019-10-13 19:37:27,249 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:27,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:27,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1876229816, now seen corresponding path program 1 times [2019-10-13 19:37:27,263 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:27,264 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779431376] [2019-10-13 19:37:27,264 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:27,264 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:27,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:27,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:27,967 WARN L191 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:27,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:28,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:28,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:28,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:28,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:28,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:28,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:28,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:28,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:37:28,050 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779431376] [2019-10-13 19:37:28,051 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:28,051 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 19:37:28,052 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661474878] [2019-10-13 19:37:28,057 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:37:28,058 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:28,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:37:28,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:37:28,077 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 4 states. [2019-10-13 19:37:29,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:29,634 INFO L93 Difference]: Finished difference Result 369 states and 481 transitions. [2019-10-13 19:37:29,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 19:37:29,636 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2019-10-13 19:37:29,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:29,655 INFO L225 Difference]: With dead ends: 369 [2019-10-13 19:37:29,655 INFO L226 Difference]: Without dead ends: 205 [2019-10-13 19:37:29,665 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:37:29,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2019-10-13 19:37:29,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 165. [2019-10-13 19:37:29,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2019-10-13 19:37:29,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 197 transitions. [2019-10-13 19:37:29,835 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 197 transitions. Word has length 51 [2019-10-13 19:37:29,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:29,836 INFO L462 AbstractCegarLoop]: Abstraction has 165 states and 197 transitions. [2019-10-13 19:37:29,836 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:37:29,836 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 197 transitions. [2019-10-13 19:37:29,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-13 19:37:29,847 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:29,848 INFO L380 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] [2019-10-13 19:37:29,848 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:29,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:29,849 INFO L82 PathProgramCache]: Analyzing trace with hash -473730038, now seen corresponding path program 1 times [2019-10-13 19:37:29,849 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:29,849 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439747173] [2019-10-13 19:37:29,850 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:29,850 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:29,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:29,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:30,245 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:30,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:30,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:30,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:30,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:30,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:30,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:30,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:30,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:30,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:37:30,301 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439747173] [2019-10-13 19:37:30,301 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:30,302 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 19:37:30,302 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159524311] [2019-10-13 19:37:30,304 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 19:37:30,304 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:30,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 19:37:30,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:37:30,305 INFO L87 Difference]: Start difference. First operand 165 states and 197 transitions. Second operand 5 states. [2019-10-13 19:37:30,840 WARN L191 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:37:32,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:32,047 INFO L93 Difference]: Finished difference Result 304 states and 380 transitions. [2019-10-13 19:37:32,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 19:37:32,048 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2019-10-13 19:37:32,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:32,052 INFO L225 Difference]: With dead ends: 304 [2019-10-13 19:37:32,052 INFO L226 Difference]: Without dead ends: 195 [2019-10-13 19:37:32,054 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:37:32,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2019-10-13 19:37:32,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 156. [2019-10-13 19:37:32,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-10-13 19:37:32,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 185 transitions. [2019-10-13 19:37:32,094 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 185 transitions. Word has length 52 [2019-10-13 19:37:32,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:32,094 INFO L462 AbstractCegarLoop]: Abstraction has 156 states and 185 transitions. [2019-10-13 19:37:32,094 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 19:37:32,094 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 185 transitions. [2019-10-13 19:37:32,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-13 19:37:32,096 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:32,096 INFO L380 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] [2019-10-13 19:37:32,097 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:32,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:32,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1190097928, now seen corresponding path program 1 times [2019-10-13 19:37:32,097 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:32,098 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103076434] [2019-10-13 19:37:32,098 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:32,098 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:32,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:32,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:32,458 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:32,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:32,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:32,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:32,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:32,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:32,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:32,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:32,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:32,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:37:32,568 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103076434] [2019-10-13 19:37:32,568 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:32,569 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:37:32,569 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530734308] [2019-10-13 19:37:32,569 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:37:32,569 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:32,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:37:32,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:37:32,570 INFO L87 Difference]: Start difference. First operand 156 states and 185 transitions. Second operand 9 states. [2019-10-13 19:37:33,137 WARN L191 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:37:33,473 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-13 19:37:33,754 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:37:34,054 WARN L191 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:37:34,940 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:37:37,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:37,710 INFO L93 Difference]: Finished difference Result 528 states and 668 transitions. [2019-10-13 19:37:37,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 19:37:37,710 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 57 [2019-10-13 19:37:37,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:37,715 INFO L225 Difference]: With dead ends: 528 [2019-10-13 19:37:37,715 INFO L226 Difference]: Without dead ends: 400 [2019-10-13 19:37:37,717 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2019-10-13 19:37:37,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2019-10-13 19:37:37,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 323. [2019-10-13 19:37:37,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2019-10-13 19:37:37,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 396 transitions. [2019-10-13 19:37:37,804 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 396 transitions. Word has length 57 [2019-10-13 19:37:37,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:37,804 INFO L462 AbstractCegarLoop]: Abstraction has 323 states and 396 transitions. [2019-10-13 19:37:37,805 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:37:37,805 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 396 transitions. [2019-10-13 19:37:37,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-10-13 19:37:37,806 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:37,807 INFO L380 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] [2019-10-13 19:37:37,807 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:37,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:37,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1162392239, now seen corresponding path program 1 times [2019-10-13 19:37:37,807 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:37,808 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698112390] [2019-10-13 19:37:37,808 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:37,808 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:37,808 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:37,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:38,139 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:38,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:38,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:38,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:38,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:38,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:38,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:38,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:38,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:38,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:38,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:37:38,262 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698112390] [2019-10-13 19:37:38,262 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:38,262 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:37:38,263 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740777508] [2019-10-13 19:37:38,263 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:37:38,264 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:38,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:37:38,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:37:38,265 INFO L87 Difference]: Start difference. First operand 323 states and 396 transitions. Second operand 9 states. [2019-10-13 19:37:38,696 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:37:39,772 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:37:40,269 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:37:40,536 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:37:40,842 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:37:42,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:42,994 INFO L93 Difference]: Finished difference Result 1042 states and 1376 transitions. [2019-10-13 19:37:42,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-13 19:37:42,995 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2019-10-13 19:37:42,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:43,002 INFO L225 Difference]: With dead ends: 1042 [2019-10-13 19:37:43,002 INFO L226 Difference]: Without dead ends: 747 [2019-10-13 19:37:43,004 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2019-10-13 19:37:43,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2019-10-13 19:37:43,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 594. [2019-10-13 19:37:43,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 594 states. [2019-10-13 19:37:43,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 732 transitions. [2019-10-13 19:37:43,169 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 732 transitions. Word has length 62 [2019-10-13 19:37:43,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:43,170 INFO L462 AbstractCegarLoop]: Abstraction has 594 states and 732 transitions. [2019-10-13 19:37:43,170 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:37:43,170 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 732 transitions. [2019-10-13 19:37:43,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-10-13 19:37:43,173 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:43,173 INFO L380 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] [2019-10-13 19:37:43,173 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:43,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:43,174 INFO L82 PathProgramCache]: Analyzing trace with hash -956691731, now seen corresponding path program 1 times [2019-10-13 19:37:43,174 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:43,174 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179190207] [2019-10-13 19:37:43,174 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:43,174 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:43,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:43,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:43,533 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:43,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:43,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:43,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:43,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:43,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:43,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:43,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:43,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:43,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:43,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:37:43,670 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179190207] [2019-10-13 19:37:43,671 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:43,671 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 19:37:43,671 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929951658] [2019-10-13 19:37:43,672 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 19:37:43,672 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:43,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 19:37:43,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:37:43,673 INFO L87 Difference]: Start difference. First operand 594 states and 732 transitions. Second operand 10 states. [2019-10-13 19:37:44,275 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:37:45,480 WARN L191 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:37:45,767 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:37:46,031 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:37:46,912 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:37:48,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:48,511 INFO L93 Difference]: Finished difference Result 1649 states and 2238 transitions. [2019-10-13 19:37:48,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-13 19:37:48,512 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 66 [2019-10-13 19:37:48,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:48,520 INFO L225 Difference]: With dead ends: 1649 [2019-10-13 19:37:48,521 INFO L226 Difference]: Without dead ends: 1083 [2019-10-13 19:37:48,524 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=205, Invalid=551, Unknown=0, NotChecked=0, Total=756 [2019-10-13 19:37:48,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2019-10-13 19:37:48,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 877. [2019-10-13 19:37:48,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 877 states. [2019-10-13 19:37:48,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1063 transitions. [2019-10-13 19:37:48,682 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1063 transitions. Word has length 66 [2019-10-13 19:37:48,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:48,682 INFO L462 AbstractCegarLoop]: Abstraction has 877 states and 1063 transitions. [2019-10-13 19:37:48,682 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 19:37:48,683 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1063 transitions. [2019-10-13 19:37:48,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-10-13 19:37:48,685 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:48,686 INFO L380 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] [2019-10-13 19:37:48,686 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:48,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:48,686 INFO L82 PathProgramCache]: Analyzing trace with hash 181415894, now seen corresponding path program 1 times [2019-10-13 19:37:48,686 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:48,687 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580697105] [2019-10-13 19:37:48,687 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:48,687 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:48,687 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:48,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:49,011 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:49,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:49,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:49,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:49,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:49,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:49,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:49,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:49,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:49,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:49,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:49,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:49,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:49,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:49,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:49,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:49,175 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:37:49,176 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580697105] [2019-10-13 19:37:49,176 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:49,176 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 19:37:49,176 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412799584] [2019-10-13 19:37:49,177 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 19:37:49,177 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:49,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 19:37:49,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:37:49,178 INFO L87 Difference]: Start difference. First operand 877 states and 1063 transitions. Second operand 12 states. [2019-10-13 19:37:49,791 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:37:50,066 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:37:50,341 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:37:51,358 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:37:51,675 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:37:51,967 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:37:53,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:53,779 INFO L93 Difference]: Finished difference Result 2014 states and 2715 transitions. [2019-10-13 19:37:53,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 19:37:53,780 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 109 [2019-10-13 19:37:53,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:53,788 INFO L225 Difference]: With dead ends: 2014 [2019-10-13 19:37:53,788 INFO L226 Difference]: Without dead ends: 1165 [2019-10-13 19:37:53,791 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2019-10-13 19:37:53,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1165 states. [2019-10-13 19:37:53,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1165 to 899. [2019-10-13 19:37:53,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 899 states. [2019-10-13 19:37:53,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1087 transitions. [2019-10-13 19:37:53,930 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 1087 transitions. Word has length 109 [2019-10-13 19:37:53,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:53,931 INFO L462 AbstractCegarLoop]: Abstraction has 899 states and 1087 transitions. [2019-10-13 19:37:53,931 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 19:37:53,931 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 1087 transitions. [2019-10-13 19:37:53,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-10-13 19:37:53,933 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:53,934 INFO L380 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] [2019-10-13 19:37:53,934 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:53,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:53,934 INFO L82 PathProgramCache]: Analyzing trace with hash -1757746152, now seen corresponding path program 1 times [2019-10-13 19:37:53,935 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:53,935 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850927731] [2019-10-13 19:37:53,935 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:53,935 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:53,935 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:53,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,209 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:54,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,399 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:37:54,400 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850927731] [2019-10-13 19:37:54,401 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:54,401 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 19:37:54,401 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636018992] [2019-10-13 19:37:54,402 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 19:37:54,402 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:54,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 19:37:54,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:37:54,404 INFO L87 Difference]: Start difference. First operand 899 states and 1087 transitions. Second operand 10 states. [2019-10-13 19:37:55,898 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:37:56,173 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2019-10-13 19:37:56,452 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:37:56,773 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:37:58,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:58,306 INFO L93 Difference]: Finished difference Result 2052 states and 2755 transitions. [2019-10-13 19:37:58,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 19:37:58,307 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 109 [2019-10-13 19:37:58,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:58,314 INFO L225 Difference]: With dead ends: 2052 [2019-10-13 19:37:58,314 INFO L226 Difference]: Without dead ends: 1181 [2019-10-13 19:37:58,318 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2019-10-13 19:37:58,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2019-10-13 19:37:58,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 919. [2019-10-13 19:37:58,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 919 states. [2019-10-13 19:37:58,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1107 transitions. [2019-10-13 19:37:58,510 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1107 transitions. Word has length 109 [2019-10-13 19:37:58,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:58,511 INFO L462 AbstractCegarLoop]: Abstraction has 919 states and 1107 transitions. [2019-10-13 19:37:58,511 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 19:37:58,511 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1107 transitions. [2019-10-13 19:37:58,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-10-13 19:37:58,516 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:58,517 INFO L380 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] [2019-10-13 19:37:58,517 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:58,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:58,518 INFO L82 PathProgramCache]: Analyzing trace with hash 950585909, now seen corresponding path program 1 times [2019-10-13 19:37:58,518 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:58,519 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367907615] [2019-10-13 19:37:58,519 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:58,520 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:58,521 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:58,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:58,864 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:58,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:58,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:58,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:58,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:58,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:58,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:58,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:58,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:59,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:59,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:59,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:59,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:59,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:59,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:59,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:59,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:59,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:59,097 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:37:59,097 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367907615] [2019-10-13 19:37:59,097 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:59,098 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 19:37:59,098 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250591339] [2019-10-13 19:37:59,098 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 19:37:59,098 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:59,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 19:37:59,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:37:59,099 INFO L87 Difference]: Start difference. First operand 919 states and 1107 transitions. Second operand 8 states. [2019-10-13 19:37:59,494 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:38:00,124 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:38:03,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:38:03,619 INFO L93 Difference]: Finished difference Result 3031 states and 4105 transitions. [2019-10-13 19:38:03,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-13 19:38:03,620 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 109 [2019-10-13 19:38:03,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:38:03,633 INFO L225 Difference]: With dead ends: 3031 [2019-10-13 19:38:03,633 INFO L226 Difference]: Without dead ends: 2140 [2019-10-13 19:38:03,638 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 44 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2019-10-13 19:38:03,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2019-10-13 19:38:04,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 1783. [2019-10-13 19:38:04,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1783 states. [2019-10-13 19:38:04,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1783 states to 1783 states and 2173 transitions. [2019-10-13 19:38:04,027 INFO L78 Accepts]: Start accepts. Automaton has 1783 states and 2173 transitions. Word has length 109 [2019-10-13 19:38:04,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:38:04,028 INFO L462 AbstractCegarLoop]: Abstraction has 1783 states and 2173 transitions. [2019-10-13 19:38:04,028 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 19:38:04,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1783 states and 2173 transitions. [2019-10-13 19:38:04,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-10-13 19:38:04,033 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:38:04,033 INFO L380 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] [2019-10-13 19:38:04,033 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:38:04,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:38:04,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1552682437, now seen corresponding path program 1 times [2019-10-13 19:38:04,034 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:38:04,034 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908475326] [2019-10-13 19:38:04,034 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:38:04,035 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:38:04,035 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:38:04,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:38:04,332 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:38:04,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:38:04,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:38:04,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:38:04,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:38:04,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:38:04,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:38:04,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:38:04,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:38:04,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:38:04,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:38:04,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:38:04,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:38:04,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:38:04,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:38:04,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:38:04,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:38:04,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:38:04,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:38:04,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:38:04,768 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 19:38:04,769 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908475326] [2019-10-13 19:38:04,770 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1745682065] [2019-10-13 19:38:04,770 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true