/usr/bin/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_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 22:06:38,931 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 22:06:38,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 22:06:38,952 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 22:06:38,953 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 22:06:38,955 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 22:06:38,957 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 22:06:38,970 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 22:06:38,972 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 22:06:38,973 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 22:06:38,976 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 22:06:38,978 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 22:06:38,978 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 22:06:38,981 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 22:06:38,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 22:06:38,983 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 22:06:38,983 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 22:06:38,984 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 22:06:38,986 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 22:06:38,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 22:06:38,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 22:06:38,990 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 22:06:38,991 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 22:06:38,991 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 22:06:38,996 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 22:06:38,996 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 22:06:38,996 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 22:06:38,998 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 22:06:38,999 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 22:06:39,003 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 22:06:39,003 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 22:06:39,004 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 22:06:39,006 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 22:06:39,007 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 22:06:39,008 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 22:06:39,008 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 22:06:39,009 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 22:06:39,009 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 22:06:39,009 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 22:06:39,014 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 22:06:39,015 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 22:06:39,016 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 [2019-11-06 22:06:39,030 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 22:06:39,030 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 22:06:39,031 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 22:06:39,032 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 22:06:39,032 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 22:06:39,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 22:06:39,032 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 22:06:39,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 22:06:39,033 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 22:06:39,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 22:06:39,033 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 22:06:39,033 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 22:06:39,033 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 22:06:39,034 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 22:06:39,034 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 22:06:39,034 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 22:06:39,034 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 22:06:39,034 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 22:06:39,035 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 22:06:39,035 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 22:06:39,035 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 22:06:39,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:06:39,035 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 22:06:39,036 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 22:06:39,036 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 22:06:39,036 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 22:06:39,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 22:06:39,037 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 22:06:39,037 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 22:06:39,350 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 22:06:39,368 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 22:06:39,371 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 22:06:39,373 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 22:06:39,373 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 22:06:39,374 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product39.cil.c [2019-11-06 22:06:39,435 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/874cecdcd/bd3cecc2c0d645268f3c4bfee36d8a1e/FLAGb71b28bab [2019-11-06 22:06:39,973 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 22:06:39,973 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product39.cil.c [2019-11-06 22:06:39,984 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/874cecdcd/bd3cecc2c0d645268f3c4bfee36d8a1e/FLAGb71b28bab [2019-11-06 22:06:40,257 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/874cecdcd/bd3cecc2c0d645268f3c4bfee36d8a1e [2019-11-06 22:06:40,265 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 22:06:40,266 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 22:06:40,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 22:06:40,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 22:06:40,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 22:06:40,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:06:40" (1/1) ... [2019-11-06 22:06:40,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fc7ac77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:40, skipping insertion in model container [2019-11-06 22:06:40,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:06:40" (1/1) ... [2019-11-06 22:06:40,282 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 22:06:40,331 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 22:06:40,830 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:06:40,848 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 22:06:40,975 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:06:41,009 INFO L192 MainTranslator]: Completed translation [2019-11-06 22:06:41,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:41 WrapperNode [2019-11-06 22:06:41,009 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 22:06:41,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 22:06:41,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 22:06:41,010 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 22:06:41,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:41" (1/1) ... [2019-11-06 22:06:41,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:41" (1/1) ... [2019-11-06 22:06:41,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:41" (1/1) ... [2019-11-06 22:06:41,039 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:41" (1/1) ... [2019-11-06 22:06:41,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:41" (1/1) ... [2019-11-06 22:06:41,077 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:41" (1/1) ... [2019-11-06 22:06:41,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:41" (1/1) ... [2019-11-06 22:06:41,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 22:06:41,090 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 22:06:41,090 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 22:06:41,090 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 22:06:41,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:41" (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 [2019-11-06 22:06:41,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 22:06:41,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 22:06:41,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-06 22:06:41,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-06 22:06:41,153 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-06 22:06:41,153 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-06 22:06:41,153 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-06 22:06:41,153 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-06 22:06:41,154 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-06 22:06:41,154 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-11-06 22:06:41,154 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-11-06 22:06:41,154 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-11-06 22:06:41,154 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-11-06 22:06:41,154 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-11-06 22:06:41,155 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-11-06 22:06:41,155 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-11-06 22:06:41,155 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-11-06 22:06:41,155 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-11-06 22:06:41,155 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-11-06 22:06:41,155 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-06 22:06:41,156 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-06 22:06:41,156 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-06 22:06:41,156 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-06 22:06:41,156 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 22:06:41,156 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-06 22:06:41,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-11-06 22:06:41,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-11-06 22:06:41,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-11-06 22:06:41,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-06 22:06:41,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-06 22:06:41,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-06 22:06:41,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-06 22:06:41,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-06 22:06:41,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-06 22:06:41,158 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-11-06 22:06:41,158 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-11-06 22:06:41,158 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-11-06 22:06:41,158 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-11-06 22:06:41,158 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-11-06 22:06:41,159 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-11-06 22:06:41,159 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-11-06 22:06:41,159 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 22:06:41,159 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 22:06:41,159 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-06 22:06:41,160 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-06 22:06:41,160 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-06 22:06:41,160 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-06 22:06:41,160 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-06 22:06:41,160 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-06 22:06:41,160 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-11-06 22:06:41,161 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-11-06 22:06:41,161 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-11-06 22:06:41,161 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-11-06 22:06:41,161 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-06 22:06:41,161 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-11-06 22:06:41,161 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-11-06 22:06:41,162 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-11-06 22:06:41,162 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-11-06 22:06:41,162 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-11-06 22:06:41,162 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-11-06 22:06:41,162 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-11-06 22:06:41,162 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-11-06 22:06:41,162 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-11-06 22:06:41,163 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-11-06 22:06:41,163 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-11-06 22:06:41,163 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-11-06 22:06:41,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 22:06:41,163 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-06 22:06:41,163 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-11-06 22:06:41,164 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-11-06 22:06:41,164 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-06 22:06:41,164 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-06 22:06:41,164 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-11-06 22:06:41,164 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-06 22:06:41,164 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-06 22:06:41,164 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 22:06:41,165 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-11-06 22:06:41,165 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-06 22:06:41,165 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 22:06:41,165 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 22:06:41,165 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-06 22:06:41,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 22:06:41,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 22:06:41,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 22:06:41,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 22:06:41,166 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-06 22:06:41,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 22:06:41,166 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-06 22:06:41,166 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-06 22:06:41,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 22:06:41,167 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-06 22:06:41,167 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-06 22:06:41,167 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-06 22:06:41,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 22:06:41,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-06 22:06:41,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 22:06:42,316 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 22:06:42,316 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-06 22:06:42,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:06:42 BoogieIcfgContainer [2019-11-06 22:06:42,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 22:06:42,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 22:06:42,319 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 22:06:42,322 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 22:06:42,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:06:40" (1/3) ... [2019-11-06 22:06:42,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c911f17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:06:42, skipping insertion in model container [2019-11-06 22:06:42,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:41" (2/3) ... [2019-11-06 22:06:42,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c911f17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:06:42, skipping insertion in model container [2019-11-06 22:06:42,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:06:42" (3/3) ... [2019-11-06 22:06:42,328 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product39.cil.c [2019-11-06 22:06:42,338 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 22:06:42,347 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 22:06:42,359 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 22:06:42,393 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 22:06:42,393 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 22:06:42,393 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 22:06:42,393 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 22:06:42,393 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 22:06:42,394 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 22:06:42,394 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 22:06:42,394 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 22:06:42,421 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states. [2019-11-06 22:06:42,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-11-06 22:06:42,435 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:06:42,436 INFO L410 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] [2019-11-06 22:06:42,439 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:06:42,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:06:42,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1474572721, now seen corresponding path program 1 times [2019-11-06 22:06:42,455 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:06:42,456 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083061585] [2019-11-06 22:06:42,457 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:06:42,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:43,161 WARN L191 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:06:43,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:43,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:43,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:43,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:43,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:43,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:43,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:43,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:43,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:43,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:43,305 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:06:43,305 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083061585] [2019-11-06 22:06:43,306 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:06:43,307 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-06 22:06:43,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489467039] [2019-11-06 22:06:43,313 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 22:06:43,313 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:06:43,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 22:06:43,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-06 22:06:43,331 INFO L87 Difference]: Start difference. First operand 185 states. Second operand 4 states. [2019-11-06 22:06:44,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:06:44,475 INFO L93 Difference]: Finished difference Result 314 states and 404 transitions. [2019-11-06 22:06:44,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-06 22:06:44,477 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2019-11-06 22:06:44,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:06:44,492 INFO L225 Difference]: With dead ends: 314 [2019-11-06 22:06:44,493 INFO L226 Difference]: Without dead ends: 173 [2019-11-06 22:06:44,497 INFO L630 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 [2019-11-06 22:06:44,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2019-11-06 22:06:44,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 142. [2019-11-06 22:06:44,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2019-11-06 22:06:44,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 167 transitions. [2019-11-06 22:06:44,591 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 167 transitions. Word has length 59 [2019-11-06 22:06:44,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:06:44,591 INFO L462 AbstractCegarLoop]: Abstraction has 142 states and 167 transitions. [2019-11-06 22:06:44,591 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 22:06:44,592 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 167 transitions. [2019-11-06 22:06:44,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-11-06 22:06:44,596 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:06:44,596 INFO L410 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] [2019-11-06 22:06:44,596 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:06:44,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:06:44,597 INFO L82 PathProgramCache]: Analyzing trace with hash -902835711, now seen corresponding path program 1 times [2019-11-06 22:06:44,597 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:06:44,597 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178274707] [2019-11-06 22:06:44,597 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:06:44,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:45,008 WARN L191 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:06:45,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:45,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:45,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:45,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:45,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:45,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:45,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:45,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:45,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:45,196 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:06:45,196 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178274707] [2019-11-06 22:06:45,197 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:06:45,197 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 22:06:45,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258764184] [2019-11-06 22:06:45,199 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 22:06:45,200 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:06:45,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 22:06:45,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:06:45,201 INFO L87 Difference]: Start difference. First operand 142 states and 167 transitions. Second operand 9 states. [2019-11-06 22:06:45,795 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:06:46,193 WARN L191 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-11-06 22:06:46,480 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:06:46,754 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:06:47,982 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:06:49,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:06:49,942 INFO L93 Difference]: Finished difference Result 481 states and 605 transitions. [2019-11-06 22:06:49,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-06 22:06:49,942 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2019-11-06 22:06:49,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:06:49,950 INFO L225 Difference]: With dead ends: 481 [2019-11-06 22:06:49,950 INFO L226 Difference]: Without dead ends: 367 [2019-11-06 22:06:49,952 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2019-11-06 22:06:49,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2019-11-06 22:06:50,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 313. [2019-11-06 22:06:50,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2019-11-06 22:06:50,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 384 transitions. [2019-11-06 22:06:50,030 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 384 transitions. Word has length 64 [2019-11-06 22:06:50,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:06:50,031 INFO L462 AbstractCegarLoop]: Abstraction has 313 states and 384 transitions. [2019-11-06 22:06:50,031 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 22:06:50,031 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 384 transitions. [2019-11-06 22:06:50,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-11-06 22:06:50,034 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:06:50,034 INFO L410 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] [2019-11-06 22:06:50,035 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:06:50,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:06:50,035 INFO L82 PathProgramCache]: Analyzing trace with hash -2087202736, now seen corresponding path program 1 times [2019-11-06 22:06:50,035 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:06:50,036 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735196136] [2019-11-06 22:06:50,036 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:06:50,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:50,394 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:06:50,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:50,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:50,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:50,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:50,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:50,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:50,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:50,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:50,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:50,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:50,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:50,551 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-06 22:06:50,552 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735196136] [2019-11-06 22:06:50,552 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:06:50,553 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 22:06:50,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157438693] [2019-11-06 22:06:50,554 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 22:06:50,555 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:06:50,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 22:06:50,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:06:50,556 INFO L87 Difference]: Start difference. First operand 313 states and 384 transitions. Second operand 9 states. [2019-11-06 22:06:51,117 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:06:51,745 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:06:52,712 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:06:53,084 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:06:53,564 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:06:53,836 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:06:54,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:06:54,723 INFO L93 Difference]: Finished difference Result 829 states and 1126 transitions. [2019-11-06 22:06:54,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-06 22:06:54,723 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2019-11-06 22:06:54,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:06:54,730 INFO L225 Difference]: With dead ends: 829 [2019-11-06 22:06:54,730 INFO L226 Difference]: Without dead ends: 544 [2019-11-06 22:06:54,734 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2019-11-06 22:06:54,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2019-11-06 22:06:54,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 454. [2019-11-06 22:06:54,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 454 states. [2019-11-06 22:06:54,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 573 transitions. [2019-11-06 22:06:54,835 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 573 transitions. Word has length 70 [2019-11-06 22:06:54,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:06:54,835 INFO L462 AbstractCegarLoop]: Abstraction has 454 states and 573 transitions. [2019-11-06 22:06:54,836 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 22:06:54,836 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 573 transitions. [2019-11-06 22:06:54,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-11-06 22:06:54,838 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:06:54,839 INFO L410 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] [2019-11-06 22:06:54,839 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:06:54,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:06:54,839 INFO L82 PathProgramCache]: Analyzing trace with hash 571882893, now seen corresponding path program 1 times [2019-11-06 22:06:54,840 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:06:54,840 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816240830] [2019-11-06 22:06:54,840 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:06:54,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:55,142 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:06:55,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:55,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:55,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:55,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:55,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:55,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:55,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:55,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:55,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:55,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:55,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:55,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:55,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:55,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:55,224 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:06:55,224 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816240830] [2019-11-06 22:06:55,224 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:06:55,225 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-06 22:06:55,225 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997636747] [2019-11-06 22:06:55,225 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-06 22:06:55,226 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:06:55,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-06 22:06:55,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-06 22:06:55,226 INFO L87 Difference]: Start difference. First operand 454 states and 573 transitions. Second operand 6 states. [2019-11-06 22:06:55,733 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:06:56,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:06:56,779 INFO L93 Difference]: Finished difference Result 810 states and 1016 transitions. [2019-11-06 22:06:56,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-06 22:06:56,780 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2019-11-06 22:06:56,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:06:56,785 INFO L225 Difference]: With dead ends: 810 [2019-11-06 22:06:56,785 INFO L226 Difference]: Without dead ends: 485 [2019-11-06 22:06:56,787 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2019-11-06 22:06:56,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2019-11-06 22:06:56,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 412. [2019-11-06 22:06:56,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2019-11-06 22:06:56,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 497 transitions. [2019-11-06 22:06:56,862 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 497 transitions. Word has length 88 [2019-11-06 22:06:56,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:06:56,862 INFO L462 AbstractCegarLoop]: Abstraction has 412 states and 497 transitions. [2019-11-06 22:06:56,862 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-06 22:06:56,863 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 497 transitions. [2019-11-06 22:06:56,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-11-06 22:06:56,865 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:06:56,865 INFO L410 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] [2019-11-06 22:06:56,865 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:06:56,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:06:56,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1962075473, now seen corresponding path program 1 times [2019-11-06 22:06:56,866 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:06:56,866 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096356913] [2019-11-06 22:06:56,866 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:06:56,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:57,143 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:06:57,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:57,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:57,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:57,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:57,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:57,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:57,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:57,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:57,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:57,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:57,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:57,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:57,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:57,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:06:57,282 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:06:57,283 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096356913] [2019-11-06 22:06:57,283 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:06:57,283 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 22:06:57,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989447208] [2019-11-06 22:06:57,284 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 22:06:57,284 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:06:57,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 22:06:57,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:06:57,285 INFO L87 Difference]: Start difference. First operand 412 states and 497 transitions. Second operand 9 states. [2019-11-06 22:06:57,783 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:06:58,877 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:06:59,141 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-11-06 22:06:59,480 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:06:59,770 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:07:00,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:07:00,794 INFO L93 Difference]: Finished difference Result 1234 states and 1655 transitions. [2019-11-06 22:07:00,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-06 22:07:00,794 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 92 [2019-11-06 22:07:00,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:07:00,802 INFO L225 Difference]: With dead ends: 1234 [2019-11-06 22:07:00,802 INFO L226 Difference]: Without dead ends: 850 [2019-11-06 22:07:00,804 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2019-11-06 22:07:00,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2019-11-06 22:07:01,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 727. [2019-11-06 22:07:01,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 727 states. [2019-11-06 22:07:01,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 881 transitions. [2019-11-06 22:07:01,022 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 881 transitions. Word has length 92 [2019-11-06 22:07:01,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:07:01,024 INFO L462 AbstractCegarLoop]: Abstraction has 727 states and 881 transitions. [2019-11-06 22:07:01,024 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 22:07:01,024 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 881 transitions. [2019-11-06 22:07:01,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-11-06 22:07:01,034 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:07:01,034 INFO L410 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] [2019-11-06 22:07:01,035 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:07:01,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:07:01,035 INFO L82 PathProgramCache]: Analyzing trace with hash 236594576, now seen corresponding path program 1 times [2019-11-06 22:07:01,036 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:07:01,039 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225829147] [2019-11-06 22:07:01,040 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:07:01,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:01,286 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:07:01,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:01,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:01,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:01,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:01,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:01,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:01,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:01,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:01,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:01,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:01,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:01,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:01,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:01,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:01,421 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:07:01,422 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225829147] [2019-11-06 22:07:01,422 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:07:01,422 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 22:07:01,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248848565] [2019-11-06 22:07:01,423 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 22:07:01,423 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:07:01,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 22:07:01,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:07:01,424 INFO L87 Difference]: Start difference. First operand 727 states and 881 transitions. Second operand 9 states. [2019-11-06 22:07:02,601 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:07:02,873 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-11-06 22:07:03,183 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:07:03,460 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:07:04,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:07:04,197 INFO L93 Difference]: Finished difference Result 1548 states and 1977 transitions. [2019-11-06 22:07:04,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-06 22:07:04,198 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 92 [2019-11-06 22:07:04,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:07:04,209 INFO L225 Difference]: With dead ends: 1548 [2019-11-06 22:07:04,210 INFO L226 Difference]: Without dead ends: 849 [2019-11-06 22:07:04,213 INFO L630 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 [2019-11-06 22:07:04,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2019-11-06 22:07:04,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 747. [2019-11-06 22:07:04,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 747 states. [2019-11-06 22:07:04,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 901 transitions. [2019-11-06 22:07:04,375 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 901 transitions. Word has length 92 [2019-11-06 22:07:04,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:07:04,375 INFO L462 AbstractCegarLoop]: Abstraction has 747 states and 901 transitions. [2019-11-06 22:07:04,375 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 22:07:04,375 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 901 transitions. [2019-11-06 22:07:04,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-11-06 22:07:04,378 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:07:04,379 INFO L410 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] [2019-11-06 22:07:04,379 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:07:04,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:07:04,379 INFO L82 PathProgramCache]: Analyzing trace with hash 938194450, now seen corresponding path program 1 times [2019-11-06 22:07:04,380 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:07:04,380 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298093357] [2019-11-06 22:07:04,380 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:07:04,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,693 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:07:04,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:04,861 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:07:04,862 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298093357] [2019-11-06 22:07:04,863 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:07:04,863 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-06 22:07:04,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14223604] [2019-11-06 22:07:04,864 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-06 22:07:04,864 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:07:04,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-06 22:07:04,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-11-06 22:07:04,866 INFO L87 Difference]: Start difference. First operand 747 states and 901 transitions. Second operand 11 states. [2019-11-06 22:07:05,735 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:07:05,992 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:07:06,242 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:07:07,060 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:07:07,393 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:07:07,674 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:07:08,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:07:08,655 INFO L93 Difference]: Finished difference Result 1410 states and 1790 transitions. [2019-11-06 22:07:08,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-06 22:07:08,655 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 92 [2019-11-06 22:07:08,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:07:08,660 INFO L225 Difference]: With dead ends: 1410 [2019-11-06 22:07:08,661 INFO L226 Difference]: Without dead ends: 691 [2019-11-06 22:07:08,663 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2019-11-06 22:07:08,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2019-11-06 22:07:08,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 618. [2019-11-06 22:07:08,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 618 states. [2019-11-06 22:07:08,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 727 transitions. [2019-11-06 22:07:08,759 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 727 transitions. Word has length 92 [2019-11-06 22:07:08,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:07:08,760 INFO L462 AbstractCegarLoop]: Abstraction has 618 states and 727 transitions. [2019-11-06 22:07:08,760 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-06 22:07:08,760 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 727 transitions. [2019-11-06 22:07:08,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-11-06 22:07:08,763 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:07:08,764 INFO L410 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] [2019-11-06 22:07:08,764 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:07:08,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:07:08,764 INFO L82 PathProgramCache]: Analyzing trace with hash -711915603, now seen corresponding path program 1 times [2019-11-06 22:07:08,764 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:07:08,770 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136380028] [2019-11-06 22:07:08,770 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:07:08,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:09,136 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:07:09,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:09,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:09,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:09,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:09,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:09,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:09,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:09,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:09,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:09,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:09,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:09,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:09,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:09,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:09,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:09,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:09,319 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:07:09,319 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136380028] [2019-11-06 22:07:09,319 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:07:09,319 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-06 22:07:09,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461508498] [2019-11-06 22:07:09,320 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-06 22:07:09,320 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:07:09,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-06 22:07:09,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-11-06 22:07:09,321 INFO L87 Difference]: Start difference. First operand 618 states and 727 transitions. Second operand 12 states. [2019-11-06 22:07:09,888 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:07:10,568 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:07:11,333 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:07:11,703 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:07:12,012 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-11-06 22:07:12,337 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:07:12,641 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-11-06 22:07:14,405 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-11-06 22:07:14,723 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-06 22:07:15,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:07:15,156 INFO L93 Difference]: Finished difference Result 1813 states and 2317 transitions. [2019-11-06 22:07:15,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-11-06 22:07:15,160 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 96 [2019-11-06 22:07:15,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:07:15,169 INFO L225 Difference]: With dead ends: 1813 [2019-11-06 22:07:15,170 INFO L226 Difference]: Without dead ends: 1405 [2019-11-06 22:07:15,172 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2019-11-06 22:07:15,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1405 states. [2019-11-06 22:07:15,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1405 to 1271. [2019-11-06 22:07:15,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1271 states. [2019-11-06 22:07:15,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1271 states to 1271 states and 1497 transitions. [2019-11-06 22:07:15,365 INFO L78 Accepts]: Start accepts. Automaton has 1271 states and 1497 transitions. Word has length 96 [2019-11-06 22:07:15,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:07:15,367 INFO L462 AbstractCegarLoop]: Abstraction has 1271 states and 1497 transitions. [2019-11-06 22:07:15,367 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-06 22:07:15,367 INFO L276 IsEmpty]: Start isEmpty. Operand 1271 states and 1497 transitions. [2019-11-06 22:07:15,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-11-06 22:07:15,370 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:07:15,371 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:07:15,371 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:07:15,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:07:15,371 INFO L82 PathProgramCache]: Analyzing trace with hash 69794205, now seen corresponding path program 1 times [2019-11-06 22:07:15,371 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:07:15,372 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672235834] [2019-11-06 22:07:15,372 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:07:15,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:15,781 WARN L191 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-06 22:07:15,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:15,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:15,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:15,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:15,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:15,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:15,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:15,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:15,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:15,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:15,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:15,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:15,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:15,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:15,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:15,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:15,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:15,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:16,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:16,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:16,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:16,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:16,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:16,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:16,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:16,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:16,072 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 21 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-11-06 22:07:16,072 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672235834] [2019-11-06 22:07:16,072 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189654161] [2019-11-06 22:07:16,072 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 [2019-11-06 22:07:16,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:07:16,272 INFO L256 TraceCheckSpWp]: Trace formula consists of 923 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-06 22:07:16,287 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 22:07:16,443 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 27 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:07:16,444 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-06 22:07:16,444 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 7] total 20 [2019-11-06 22:07:16,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355156414] [2019-11-06 22:07:16,445 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-11-06 22:07:16,445 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:07:16,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-11-06 22:07:16,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2019-11-06 22:07:16,446 INFO L87 Difference]: Start difference. First operand 1271 states and 1497 transitions. Second operand 20 states. [2019-11-06 22:07:17,324 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2019-11-06 22:07:17,708 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2019-11-06 22:07:17,987 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 196