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_spec5_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:41:25,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:41:25,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:41:25,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:41:25,906 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:41:25,907 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:41:25,908 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:41:25,910 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:41:25,912 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:41:25,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:41:25,913 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:41:25,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:41:25,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:41:25,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:41:25,917 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:41:25,918 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:41:25,919 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:41:25,920 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:41:25,921 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:41:25,924 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:41:25,925 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:41:25,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:41:25,927 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:41:25,928 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:41:25,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:41:25,931 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:41:25,931 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:41:25,932 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:41:25,932 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:41:25,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:41:25,934 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:41:25,934 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:41:25,935 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:41:25,936 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:41:25,937 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:41:25,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:41:25,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:41:25,938 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:41:25,941 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:41:25,942 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:41:25,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:41:25,943 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 19:41:25,967 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:41:25,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:41:25,969 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:41:25,969 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:41:25,969 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:41:25,969 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:41:25,970 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:41:25,970 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:41:25,970 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:41:25,970 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:41:25,970 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:41:25,971 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:41:25,971 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:41:25,971 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:41:25,971 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:41:25,971 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:41:25,972 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:41:25,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:41:25,972 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:41:25,972 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:41:25,972 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:41:25,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:41:25,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:41:25,973 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:41:25,973 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:41:25,973 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:41:25,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:41:25,974 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:41:25,974 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:41:26,278 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:41:26,289 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:41:26,292 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:41:26,294 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:41:26,294 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:41:26,295 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product38.cil.c [2019-10-13 19:41:26,351 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a13ffed1/ea75d4d9b68e4892a5d163d89247f710/FLAG35a17efbe [2019-10-13 19:41:26,872 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:41:26,873 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product38.cil.c [2019-10-13 19:41:26,888 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a13ffed1/ea75d4d9b68e4892a5d163d89247f710/FLAG35a17efbe [2019-10-13 19:41:27,182 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a13ffed1/ea75d4d9b68e4892a5d163d89247f710 [2019-10-13 19:41:27,192 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:41:27,193 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:41:27,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:41:27,194 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:41:27,197 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:41:27,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:41:27" (1/1) ... [2019-10-13 19:41:27,201 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@328580aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:41:27, skipping insertion in model container [2019-10-13 19:41:27,201 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:41:27" (1/1) ... [2019-10-13 19:41:27,208 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:41:27,258 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:41:27,708 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:41:27,725 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:41:27,827 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:41:27,860 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:41:27,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:41:27 WrapperNode [2019-10-13 19:41:27,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:41:27,862 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:41:27,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:41:27,862 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:41:27,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:41:27" (1/1) ... [2019-10-13 19:41:27,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:41:27" (1/1) ... [2019-10-13 19:41:27,890 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:41:27" (1/1) ... [2019-10-13 19:41:27,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:41:27" (1/1) ... [2019-10-13 19:41:27,918 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:41:27" (1/1) ... [2019-10-13 19:41:27,928 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:41:27" (1/1) ... [2019-10-13 19:41:27,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:41:27" (1/1) ... [2019-10-13 19:41:27,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:41:27,941 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:41:27,941 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:41:27,941 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:41:27,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:41:27" (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 19:41:28,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:41:28,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:41:28,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 19:41:28,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 19:41:28,009 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 19:41:28,009 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 19:41:28,010 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 19:41:28,010 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 19:41:28,010 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:41:28,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-13 19:41:28,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-13 19:41:28,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-13 19:41:28,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 19:41:28,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 19:41:28,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 19:41:28,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 19:41:28,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 19:41:28,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 19:41:28,012 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 19:41:28,012 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 19:41:28,012 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 19:41:28,012 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 19:41:28,013 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 19:41:28,013 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 19:41:28,013 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 19:41:28,013 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 19:41:28,013 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 19:41:28,013 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 19:41:28,014 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 19:41:28,014 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 19:41:28,014 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 19:41:28,014 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 19:41:28,014 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 19:41:28,014 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 19:41:28,014 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 19:41:28,015 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-13 19:41:28,015 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 19:41:28,015 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 19:41:28,015 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 19:41:28,015 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 19:41:28,015 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 19:41:28,016 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:41:28,016 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:41:28,016 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 19:41:28,016 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 19:41:28,016 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 19:41:28,016 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 19:41:28,016 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 19:41:28,017 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 19:41:28,017 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 19:41:28,017 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 19:41:28,017 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 19:41:28,017 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-13 19:41:28,017 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 19:41:28,017 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 19:41:28,018 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 19:41:28,018 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 19:41:28,018 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 19:41:28,018 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:41:28,018 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 19:41:28,018 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 19:41:28,018 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-13 19:41:28,019 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-13 19:41:28,019 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 19:41:28,019 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 19:41:28,019 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 19:41:28,019 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 19:41:28,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 19:41:28,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 19:41:28,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:41:28,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 19:41:28,020 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 19:41:28,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:41:28,020 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 19:41:28,021 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 19:41:28,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:41:28,021 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 19:41:28,021 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 19:41:28,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:41:28,021 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 19:41:28,022 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 19:41:28,022 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 19:41:28,022 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 19:41:28,022 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 19:41:28,022 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 19:41:28,022 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 19:41:28,022 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-13 19:41:28,023 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 19:41:28,023 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 19:41:28,023 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 19:41:28,023 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 19:41:28,023 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 19:41:28,023 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 19:41:28,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:41:28,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:41:28,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:41:29,113 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:41:29,114 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 19:41:29,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:41:29 BoogieIcfgContainer [2019-10-13 19:41:29,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:41:29,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:41:29,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:41:29,121 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:41:29,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:41:27" (1/3) ... [2019-10-13 19:41:29,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@789616ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:41:29, skipping insertion in model container [2019-10-13 19:41:29,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:41:27" (2/3) ... [2019-10-13 19:41:29,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@789616ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:41:29, skipping insertion in model container [2019-10-13 19:41:29,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:41:29" (3/3) ... [2019-10-13 19:41:29,126 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product38.cil.c [2019-10-13 19:41:29,136 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:41:29,146 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:41:29,158 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:41:29,199 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:41:29,199 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:41:29,200 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:41:29,200 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:41:29,200 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:41:29,200 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:41:29,201 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:41:29,201 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:41:29,229 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states. [2019-10-13 19:41:29,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-13 19:41:29,244 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:41:29,246 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] [2019-10-13 19:41:29,249 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:41:29,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:41:29,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1109188308, now seen corresponding path program 1 times [2019-10-13 19:41:29,267 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:41:29,268 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047950138] [2019-10-13 19:41:29,268 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:29,268 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:29,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:41:29,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:30,021 WARN L191 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:41:30,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:30,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:30,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:30,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:30,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:30,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:30,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:30,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:30,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:30,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:30,153 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 19:41:30,154 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047950138] [2019-10-13 19:41:30,155 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:41:30,156 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 19:41:30,156 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83232511] [2019-10-13 19:41:30,162 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:41:30,163 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:41:30,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:41:30,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:41:30,179 INFO L87 Difference]: Start difference. First operand 183 states. Second operand 4 states. [2019-10-13 19:41:31,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:41:31,244 INFO L93 Difference]: Finished difference Result 309 states and 395 transitions. [2019-10-13 19:41:31,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 19:41:31,247 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2019-10-13 19:41:31,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:41:31,263 INFO L225 Difference]: With dead ends: 309 [2019-10-13 19:41:31,263 INFO L226 Difference]: Without dead ends: 170 [2019-10-13 19:41:31,268 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 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 19:41:31,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2019-10-13 19:41:31,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 140. [2019-10-13 19:41:31,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-10-13 19:41:31,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 163 transitions. [2019-10-13 19:41:31,361 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 163 transitions. Word has length 59 [2019-10-13 19:41:31,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:41:31,361 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 163 transitions. [2019-10-13 19:41:31,361 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:41:31,362 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 163 transitions. [2019-10-13 19:41:31,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-13 19:41:31,374 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:41:31,374 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] [2019-10-13 19:41:31,374 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:41:31,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:41:31,375 INFO L82 PathProgramCache]: Analyzing trace with hash 813843432, now seen corresponding path program 1 times [2019-10-13 19:41:31,375 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:41:31,376 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813959592] [2019-10-13 19:41:31,376 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:31,376 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:31,376 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:41:31,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:31,786 WARN L191 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:41:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:31,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:31,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:31,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:31,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:31,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:31,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:31,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:31,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:31,834 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 19:41:31,834 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813959592] [2019-10-13 19:41:31,834 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:41:31,835 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 19:41:31,835 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512115390] [2019-10-13 19:41:31,837 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 19:41:31,837 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:41:31,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 19:41:31,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:41:31,838 INFO L87 Difference]: Start difference. First operand 140 states and 163 transitions. Second operand 5 states. [2019-10-13 19:41:32,335 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:41:33,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:41:33,134 INFO L93 Difference]: Finished difference Result 250 states and 303 transitions. [2019-10-13 19:41:33,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 19:41:33,135 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2019-10-13 19:41:33,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:41:33,140 INFO L225 Difference]: With dead ends: 250 [2019-10-13 19:41:33,140 INFO L226 Difference]: Without dead ends: 160 [2019-10-13 19:41:33,142 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:41:33,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2019-10-13 19:41:33,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 131. [2019-10-13 19:41:33,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-10-13 19:41:33,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 151 transitions. [2019-10-13 19:41:33,176 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 151 transitions. Word has length 60 [2019-10-13 19:41:33,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:41:33,176 INFO L462 AbstractCegarLoop]: Abstraction has 131 states and 151 transitions. [2019-10-13 19:41:33,176 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 19:41:33,176 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 151 transitions. [2019-10-13 19:41:33,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-13 19:41:33,178 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:41:33,178 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] [2019-10-13 19:41:33,178 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:41:33,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:41:33,179 INFO L82 PathProgramCache]: Analyzing trace with hash 605286682, now seen corresponding path program 1 times [2019-10-13 19:41:33,179 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:41:33,179 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041972425] [2019-10-13 19:41:33,179 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:33,179 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:33,180 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:41:33,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:33,522 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:41:33,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:33,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:33,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:33,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:33,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:33,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:33,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:33,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:33,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:33,629 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 19:41:33,629 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041972425] [2019-10-13 19:41:33,630 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:41:33,630 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:41:33,630 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807699309] [2019-10-13 19:41:33,631 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:41:33,631 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:41:33,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:41:33,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:41:33,632 INFO L87 Difference]: Start difference. First operand 131 states and 151 transitions. Second operand 9 states. [2019-10-13 19:41:34,060 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:41:34,402 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-13 19:41:34,688 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:41:34,946 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:41:36,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:41:36,234 INFO L93 Difference]: Finished difference Result 263 states and 322 transitions. [2019-10-13 19:41:36,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 19:41:36,237 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2019-10-13 19:41:36,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:41:36,239 INFO L225 Difference]: With dead ends: 263 [2019-10-13 19:41:36,239 INFO L226 Difference]: Without dead ends: 160 [2019-10-13 19:41:36,243 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2019-10-13 19:41:36,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2019-10-13 19:41:36,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 131. [2019-10-13 19:41:36,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-10-13 19:41:36,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 150 transitions. [2019-10-13 19:41:36,285 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 150 transitions. Word has length 65 [2019-10-13 19:41:36,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:41:36,286 INFO L462 AbstractCegarLoop]: Abstraction has 131 states and 150 transitions. [2019-10-13 19:41:36,286 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:41:36,286 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 150 transitions. [2019-10-13 19:41:36,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-10-13 19:41:36,287 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:41:36,287 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] [2019-10-13 19:41:36,288 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:41:36,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:41:36,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1239264208, now seen corresponding path program 1 times [2019-10-13 19:41:36,288 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:41:36,288 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458409366] [2019-10-13 19:41:36,289 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:36,289 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:36,289 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:41:36,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,563 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:41:36,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,684 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 19:41:36,685 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458409366] [2019-10-13 19:41:36,685 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:41:36,685 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 19:41:36,686 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461149463] [2019-10-13 19:41:36,687 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 19:41:36,687 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:41:36,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 19:41:36,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:41:36,688 INFO L87 Difference]: Start difference. First operand 131 states and 150 transitions. Second operand 7 states. [2019-10-13 19:41:37,089 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:41:38,498 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:41:39,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:41:39,029 INFO L93 Difference]: Finished difference Result 367 states and 456 transitions. [2019-10-13 19:41:39,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 19:41:39,030 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2019-10-13 19:41:39,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:41:39,034 INFO L225 Difference]: With dead ends: 367 [2019-10-13 19:41:39,034 INFO L226 Difference]: Without dead ends: 264 [2019-10-13 19:41:39,035 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2019-10-13 19:41:39,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2019-10-13 19:41:39,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 218. [2019-10-13 19:41:39,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2019-10-13 19:41:39,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 249 transitions. [2019-10-13 19:41:39,087 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 249 transitions. Word has length 78 [2019-10-13 19:41:39,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:41:39,088 INFO L462 AbstractCegarLoop]: Abstraction has 218 states and 249 transitions. [2019-10-13 19:41:39,088 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 19:41:39,088 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 249 transitions. [2019-10-13 19:41:39,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-10-13 19:41:39,090 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:41:39,090 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] [2019-10-13 19:41:39,090 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:41:39,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:41:39,091 INFO L82 PathProgramCache]: Analyzing trace with hash 462053503, now seen corresponding path program 1 times [2019-10-13 19:41:39,091 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:41:39,092 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25209667] [2019-10-13 19:41:39,092 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:39,092 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:39,092 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:41:39,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:39,461 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:41:39,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:39,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:39,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:39,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:39,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:39,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:39,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:39,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:39,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:39,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:39,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:39,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:39,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:39,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:39,560 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 19:41:39,561 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25209667] [2019-10-13 19:41:39,561 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:41:39,561 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:41:39,562 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523001556] [2019-10-13 19:41:39,562 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:41:39,562 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:41:39,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:41:39,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:41:39,563 INFO L87 Difference]: Start difference. First operand 218 states and 249 transitions. Second operand 9 states. [2019-10-13 19:41:40,020 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:41:40,730 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:41:41,433 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:41:41,765 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:41:42,269 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:41:42,538 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:41:43,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:41:43,131 INFO L93 Difference]: Finished difference Result 453 states and 550 transitions. [2019-10-13 19:41:43,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 19:41:43,132 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 92 [2019-10-13 19:41:43,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:41:43,136 INFO L225 Difference]: With dead ends: 453 [2019-10-13 19:41:43,137 INFO L226 Difference]: Without dead ends: 263 [2019-10-13 19:41:43,138 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2019-10-13 19:41:43,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2019-10-13 19:41:43,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 217. [2019-10-13 19:41:43,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2019-10-13 19:41:43,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 246 transitions. [2019-10-13 19:41:43,181 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 246 transitions. Word has length 92 [2019-10-13 19:41:43,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:41:43,182 INFO L462 AbstractCegarLoop]: Abstraction has 217 states and 246 transitions. [2019-10-13 19:41:43,182 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:41:43,182 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 246 transitions. [2019-10-13 19:41:43,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-10-13 19:41:43,183 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:41:43,183 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] [2019-10-13 19:41:43,184 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:41:43,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:41:43,184 INFO L82 PathProgramCache]: Analyzing trace with hash -440444759, now seen corresponding path program 1 times [2019-10-13 19:41:43,184 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:41:43,184 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669067161] [2019-10-13 19:41:43,185 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:43,185 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:43,185 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:41:43,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:43,436 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:41:43,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:43,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:43,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:43,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:43,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:43,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:43,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:43,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:43,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:43,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:43,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:43,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:43,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:43,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:43,569 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 19:41:43,570 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669067161] [2019-10-13 19:41:43,570 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:41:43,570 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:41:43,570 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168730868] [2019-10-13 19:41:43,571 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:41:43,571 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:41:43,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:41:43,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:41:43,572 INFO L87 Difference]: Start difference. First operand 217 states and 246 transitions. Second operand 9 states. [2019-10-13 19:41:44,754 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:41:45,019 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2019-10-13 19:41:45,278 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:41:45,531 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:41:46,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:41:46,278 INFO L93 Difference]: Finished difference Result 451 states and 544 transitions. [2019-10-13 19:41:46,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 19:41:46,279 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2019-10-13 19:41:46,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:41:46,281 INFO L225 Difference]: With dead ends: 451 [2019-10-13 19:41:46,282 INFO L226 Difference]: Without dead ends: 262 [2019-10-13 19:41:46,283 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2019-10-13 19:41:46,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2019-10-13 19:41:46,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 222. [2019-10-13 19:41:46,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2019-10-13 19:41:46,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 251 transitions. [2019-10-13 19:41:46,321 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 251 transitions. Word has length 93 [2019-10-13 19:41:46,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:41:46,322 INFO L462 AbstractCegarLoop]: Abstraction has 222 states and 251 transitions. [2019-10-13 19:41:46,322 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:41:46,322 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 251 transitions. [2019-10-13 19:41:46,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-10-13 19:41:46,323 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:41:46,323 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] [2019-10-13 19:41:46,323 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:41:46,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:41:46,324 INFO L82 PathProgramCache]: Analyzing trace with hash 261155115, now seen corresponding path program 1 times [2019-10-13 19:41:46,324 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:41:46,324 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487977479] [2019-10-13 19:41:46,324 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:46,324 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:46,325 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:41:46,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:46,587 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:41:46,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:46,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:46,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:46,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:46,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:46,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:46,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:46,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:46,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:46,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:46,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:46,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:46,736 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 19:41:46,736 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487977479] [2019-10-13 19:41:46,737 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:41:46,737 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 19:41:46,737 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975277946] [2019-10-13 19:41:46,738 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 19:41:46,739 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:41:46,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 19:41:46,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-10-13 19:41:46,740 INFO L87 Difference]: Start difference. First operand 222 states and 251 transitions. Second operand 11 states. [2019-10-13 19:41:47,265 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:41:47,537 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:41:47,786 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:41:48,600 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:41:48,885 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:41:49,138 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:41:49,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:41:49,989 INFO L93 Difference]: Finished difference Result 463 states and 564 transitions. [2019-10-13 19:41:49,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 19:41:49,989 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 93 [2019-10-13 19:41:49,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:41:49,991 INFO L225 Difference]: With dead ends: 463 [2019-10-13 19:41:49,991 INFO L226 Difference]: Without dead ends: 269 [2019-10-13 19:41:49,992 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2019-10-13 19:41:49,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2019-10-13 19:41:50,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 226. [2019-10-13 19:41:50,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2019-10-13 19:41:50,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 255 transitions. [2019-10-13 19:41:50,032 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 255 transitions. Word has length 93 [2019-10-13 19:41:50,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:41:50,033 INFO L462 AbstractCegarLoop]: Abstraction has 226 states and 255 transitions. [2019-10-13 19:41:50,033 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 19:41:50,033 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 255 transitions. [2019-10-13 19:41:50,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-10-13 19:41:50,034 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:41:50,035 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] [2019-10-13 19:41:50,035 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:41:50,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:41:50,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1986636012, now seen corresponding path program 1 times [2019-10-13 19:41:50,035 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:41:50,036 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119230467] [2019-10-13 19:41:50,036 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:50,036 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:50,036 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:41:50,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,287 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:41:50,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,414 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 19:41:50,414 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119230467] [2019-10-13 19:41:50,421 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:41:50,421 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 19:41:50,421 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383167666] [2019-10-13 19:41:50,422 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 19:41:50,422 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:41:50,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 19:41:50,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:41:50,424 INFO L87 Difference]: Start difference. First operand 226 states and 255 transitions. Second operand 7 states. [2019-10-13 19:41:50,883 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:41:51,432 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:41:53,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:41:53,213 INFO L93 Difference]: Finished difference Result 645 states and 802 transitions. [2019-10-13 19:41:53,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 19:41:53,214 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 93 [2019-10-13 19:41:53,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:41:53,218 INFO L225 Difference]: With dead ends: 645 [2019-10-13 19:41:53,218 INFO L226 Difference]: Without dead ends: 447 [2019-10-13 19:41:53,219 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 37 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2019-10-13 19:41:53,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2019-10-13 19:41:53,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 405. [2019-10-13 19:41:53,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2019-10-13 19:41:53,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 471 transitions. [2019-10-13 19:41:53,274 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 471 transitions. Word has length 93 [2019-10-13 19:41:53,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:41:53,274 INFO L462 AbstractCegarLoop]: Abstraction has 405 states and 471 transitions. [2019-10-13 19:41:53,274 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 19:41:53,274 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 471 transitions. [2019-10-13 19:41:53,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-13 19:41:53,276 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:41:53,276 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] [2019-10-13 19:41:53,276 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:41:53,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:41:53,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1429929390, now seen corresponding path program 1 times [2019-10-13 19:41:53,277 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:41:53,277 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006540016] [2019-10-13 19:41:53,277 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:53,277 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:53,277 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:41:53,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:53,611 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:41:53,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:53,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:53,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:53,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:53,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:53,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:53,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:53,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:53,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:53,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:53,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:53,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:53,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:53,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:53,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:53,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:53,753 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 19:41:53,753 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006540016] [2019-10-13 19:41:53,753 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:41:53,753 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 19:41:53,754 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949802554] [2019-10-13 19:41:53,754 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 19:41:53,754 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:41:53,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 19:41:53,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:41:53,755 INFO L87 Difference]: Start difference. First operand 405 states and 471 transitions. Second operand 12 states. [2019-10-13 19:41:54,363 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:41:55,044 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:41:56,113 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:41:56,454 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:41:56,717 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-10-13 19:41:56,994 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:41:57,277 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:41:58,397 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:41:58,677 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:41:59,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:41:59,259 INFO L93 Difference]: Finished difference Result 1123 states and 1390 transitions. [2019-10-13 19:41:59,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-10-13 19:41:59,262 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 97 [2019-10-13 19:41:59,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:41:59,269 INFO L225 Difference]: With dead ends: 1123 [2019-10-13 19:41:59,269 INFO L226 Difference]: Without dead ends: 820 [2019-10-13 19:41:59,271 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2019-10-13 19:41:59,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2019-10-13 19:41:59,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 698. [2019-10-13 19:41:59,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 698 states. [2019-10-13 19:41:59,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 804 transitions. [2019-10-13 19:41:59,425 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 804 transitions. Word has length 97 [2019-10-13 19:41:59,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:41:59,426 INFO L462 AbstractCegarLoop]: Abstraction has 698 states and 804 transitions. [2019-10-13 19:41:59,426 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 19:41:59,426 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 804 transitions. [2019-10-13 19:41:59,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-13 19:41:59,431 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:41:59,431 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:41:59,431 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:41:59,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:41:59,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1557984819, now seen corresponding path program 1 times [2019-10-13 19:41:59,432 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:41:59,432 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875409188] [2019-10-13 19:41:59,432 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:59,433 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:59,433 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:41:59,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:59,731 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:41:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:59,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:59,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:59,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:59,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:59,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:59,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:59,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:59,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:59,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:59,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:59,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:59,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:59,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:59,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:59,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:59,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:59,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:59,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:59,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:59,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:59,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:59,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:59,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:59,998 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-13 19:41:59,999 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875409188] [2019-10-13 19:41:59,999 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416786997] [2019-10-13 19:41:59,999 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 [2019-10-13 19:42:00,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:00,247 INFO L256 TraceCheckSpWp]: Trace formula consists of 935 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 19:42:00,267 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:42:00,448 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 28 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:42:00,448 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-13 19:42:00,449 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 7] total 20 [2019-10-13 19:42:00,449 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830660348] [2019-10-13 19:42:00,450 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-13 19:42:00,450 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:42:00,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-13 19:42:00,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2019-10-13 19:42:00,451 INFO L87 Difference]: Start difference. First operand 698 states and 804 transitions. Second operand 20 states. [2019-10-13 19:42:01,099 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2019-10-13 19:42:01,464 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2019-10-13 19:42:01,771 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2019-10-13 19:42:02,037 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2019-10-13 19:42:02,809 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:42:03,106 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-13 19:42:03,547 WARN L191 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2019-10-13 19:42:04,296 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:42:04,692 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 196