java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:35:27,887 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:35:27,892 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:35:27,909 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:35:27,910 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:35:27,911 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:35:27,913 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:35:27,915 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:35:27,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:35:27,927 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:35:27,927 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:35:27,928 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:35:27,929 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:35:27,930 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:35:27,931 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:35:27,932 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:35:27,933 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:35:27,933 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:35:27,935 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:35:27,937 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:35:27,938 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:35:27,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:35:27,941 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:35:27,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:35:27,944 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:35:27,944 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:35:27,944 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:35:27,945 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:35:27,948 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:35:27,950 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:35:27,951 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:35:27,951 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:35:27,953 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:35:27,954 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:35:27,955 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:35:27,958 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:35:27,959 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:35:27,959 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:35:27,959 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:35:27,960 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:35:27,961 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:35:27,961 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 [2019-10-14 23:35:27,986 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:35:27,987 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:35:27,991 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:35:27,991 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:35:27,991 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:35:27,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:35:27,992 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:35:27,992 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:35:27,992 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:35:27,992 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:35:27,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:35:27,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:35:27,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:35:27,994 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:35:27,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:35:27,995 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:35:27,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:35:27,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:35:27,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:35:27,996 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:35:27,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:35:27,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:35:27,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:35:27,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:35:27,997 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:35:27,997 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:35:27,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:35:27,998 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:35:27,998 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:35:28,275 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:35:28,289 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:35:28,292 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:35:28,294 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:35:28,294 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:35:28,295 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product38.cil.c [2019-10-14 23:35:28,372 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ed95d5f1/79eb4c057c7647ffa40e3124010f82b1/FLAG3901e5842 [2019-10-14 23:35:28,953 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:35:28,954 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product38.cil.c [2019-10-14 23:35:28,968 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ed95d5f1/79eb4c057c7647ffa40e3124010f82b1/FLAG3901e5842 [2019-10-14 23:35:29,297 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ed95d5f1/79eb4c057c7647ffa40e3124010f82b1 [2019-10-14 23:35:29,305 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:35:29,306 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:35:29,307 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:35:29,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:35:29,311 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:35:29,312 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:35:29" (1/1) ... [2019-10-14 23:35:29,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@247f10a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:35:29, skipping insertion in model container [2019-10-14 23:35:29,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:35:29" (1/1) ... [2019-10-14 23:35:29,322 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:35:29,385 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:35:29,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:35:29,832 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:35:29,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:35:29,977 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:35:29,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:35:29 WrapperNode [2019-10-14 23:35:29,977 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:35:29,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:35:29,978 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:35:29,978 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:35:29,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:35:29" (1/1) ... [2019-10-14 23:35:29,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:35:29" (1/1) ... [2019-10-14 23:35:30,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:35:29" (1/1) ... [2019-10-14 23:35:30,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:35:29" (1/1) ... [2019-10-14 23:35:30,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:35:29" (1/1) ... [2019-10-14 23:35:30,071 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:35:29" (1/1) ... [2019-10-14 23:35:30,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:35:29" (1/1) ... [2019-10-14 23:35:30,103 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:35:30,104 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:35:30,104 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:35:30,104 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:35:30,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:35:29" (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 [2019-10-14 23:35:30,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:35:30,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:35:30,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-14 23:35:30,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-14 23:35:30,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-14 23:35:30,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-14 23:35:30,175 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-14 23:35:30,175 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-14 23:35:30,175 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-14 23:35:30,175 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-14 23:35:30,175 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-14 23:35:30,176 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-14 23:35:30,176 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-14 23:35:30,176 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-14 23:35:30,176 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-14 23:35:30,176 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-14 23:35:30,176 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-14 23:35:30,177 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-14 23:35:30,177 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-14 23:35:30,177 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-14 23:35:30,177 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-14 23:35:30,177 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-14 23:35:30,178 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-14 23:35:30,178 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-14 23:35:30,178 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-14 23:35:30,178 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-14 23:35:30,178 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:35:30,178 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-14 23:35:30,179 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-14 23:35:30,179 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-14 23:35:30,179 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-14 23:35:30,179 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-14 23:35:30,179 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-14 23:35:30,179 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-14 23:35:30,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-14 23:35:30,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-14 23:35:30,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-14 23:35:30,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-14 23:35:30,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-14 23:35:30,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-14 23:35:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:35:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:35:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-14 23:35:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-14 23:35:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-14 23:35:30,182 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-14 23:35:30,182 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-14 23:35:30,182 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-14 23:35:30,182 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-14 23:35:30,182 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-14 23:35:30,182 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-14 23:35:30,183 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-14 23:35:30,183 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-14 23:35:30,183 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-14 23:35:30,183 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-14 23:35:30,183 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-14 23:35:30,184 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-14 23:35:30,184 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-14 23:35:30,184 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-14 23:35:30,184 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-14 23:35:30,184 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-14 23:35:30,184 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-14 23:35:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-14 23:35:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-14 23:35:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-14 23:35:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:35:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-14 23:35:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-14 23:35:30,186 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-14 23:35:30,186 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-14 23:35:30,186 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-14 23:35:30,186 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-14 23:35:30,186 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-14 23:35:30,186 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:35:30,186 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-14 23:35:30,187 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-14 23:35:30,187 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:35:30,187 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:35:30,187 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-14 23:35:30,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:35:30,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:35:30,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:35:30,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:35:30,188 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-14 23:35:30,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:35:30,188 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-14 23:35:30,188 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-14 23:35:30,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:35:30,189 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-14 23:35:30,189 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-14 23:35:30,189 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-14 23:35:30,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:35:30,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:35:30,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:35:31,469 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:35:31,470 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-14 23:35:31,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:35:31 BoogieIcfgContainer [2019-10-14 23:35:31,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:35:31,473 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:35:31,473 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:35:31,476 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:35:31,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:35:29" (1/3) ... [2019-10-14 23:35:31,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dc263a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:35:31, skipping insertion in model container [2019-10-14 23:35:31,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:35:29" (2/3) ... [2019-10-14 23:35:31,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dc263a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:35:31, skipping insertion in model container [2019-10-14 23:35:31,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:35:31" (3/3) ... [2019-10-14 23:35:31,480 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product38.cil.c [2019-10-14 23:35:31,490 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:35:31,499 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:35:31,511 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:35:31,537 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:35:31,537 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:35:31,537 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:35:31,537 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:35:31,538 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:35:31,538 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:35:31,538 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:35:31,538 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:35:31,561 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states. [2019-10-14 23:35:31,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-14 23:35:31,571 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:35:31,572 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:35:31,574 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:35:31,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:35:31,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1698741088, now seen corresponding path program 1 times [2019-10-14 23:35:31,589 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:35:31,589 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666878392] [2019-10-14 23:35:31,590 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:35:31,590 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:35:31,590 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:35:31,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:32,246 WARN L191 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:35:32,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:32,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:32,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:32,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:32,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:32,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:32,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:32,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:32,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:35:32,348 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666878392] [2019-10-14 23:35:32,349 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:35:32,350 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 23:35:32,350 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058973799] [2019-10-14 23:35:32,356 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:35:32,356 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:35:32,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:35:32,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:35:32,376 INFO L87 Difference]: Start difference. First operand 175 states. Second operand 4 states. [2019-10-14 23:35:33,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:35:33,621 INFO L93 Difference]: Finished difference Result 296 states and 387 transitions. [2019-10-14 23:35:33,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:35:33,623 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2019-10-14 23:35:33,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:35:33,654 INFO L225 Difference]: With dead ends: 296 [2019-10-14 23:35:33,654 INFO L226 Difference]: Without dead ends: 165 [2019-10-14 23:35:33,662 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:35:33,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2019-10-14 23:35:33,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 132. [2019-10-14 23:35:33,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-10-14 23:35:33,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 155 transitions. [2019-10-14 23:35:33,805 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 155 transitions. Word has length 51 [2019-10-14 23:35:33,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:35:33,806 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 155 transitions. [2019-10-14 23:35:33,806 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:35:33,806 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 155 transitions. [2019-10-14 23:35:33,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-14 23:35:33,820 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:35:33,821 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:35:33,822 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:35:33,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:35:33,823 INFO L82 PathProgramCache]: Analyzing trace with hash 160126664, now seen corresponding path program 1 times [2019-10-14 23:35:33,823 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:35:33,824 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757846392] [2019-10-14 23:35:33,824 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:35:33,824 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:35:33,824 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:35:33,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:34,214 WARN L191 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:35:34,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:34,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:34,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:34,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:34,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:34,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:34,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:34,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:35:34,263 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757846392] [2019-10-14 23:35:34,263 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:35:34,263 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 23:35:34,264 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818307451] [2019-10-14 23:35:34,273 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 23:35:34,274 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:35:34,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 23:35:34,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:35:34,275 INFO L87 Difference]: Start difference. First operand 132 states and 155 transitions. Second operand 5 states. [2019-10-14 23:35:34,776 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:35:35,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:35:35,586 INFO L93 Difference]: Finished difference Result 237 states and 294 transitions. [2019-10-14 23:35:35,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 23:35:35,588 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2019-10-14 23:35:35,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:35:35,597 INFO L225 Difference]: With dead ends: 237 [2019-10-14 23:35:35,597 INFO L226 Difference]: Without dead ends: 155 [2019-10-14 23:35:35,600 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:35:35,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2019-10-14 23:35:35,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 123. [2019-10-14 23:35:35,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-10-14 23:35:35,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 143 transitions. [2019-10-14 23:35:35,650 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 143 transitions. Word has length 52 [2019-10-14 23:35:35,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:35:35,650 INFO L462 AbstractCegarLoop]: Abstraction has 123 states and 143 transitions. [2019-10-14 23:35:35,650 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 23:35:35,650 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 143 transitions. [2019-10-14 23:35:35,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-14 23:35:35,652 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:35:35,652 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:35:35,653 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:35:35,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:35:35,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1051645430, now seen corresponding path program 1 times [2019-10-14 23:35:35,653 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:35:35,654 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209024764] [2019-10-14 23:35:35,654 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:35:35,654 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:35:35,654 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:35:35,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:36,025 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:35:36,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:36,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:36,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:36,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:36,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:36,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:36,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:36,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:36,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:35:36,149 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209024764] [2019-10-14 23:35:36,150 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:35:36,150 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:35:36,150 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679394262] [2019-10-14 23:35:36,151 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:35:36,151 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:35:36,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:35:36,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:35:36,152 INFO L87 Difference]: Start difference. First operand 123 states and 143 transitions. Second operand 9 states. [2019-10-14 23:35:36,656 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:35:37,090 WARN L191 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-14 23:35:37,392 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:35:37,683 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:35:39,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:35:39,180 INFO L93 Difference]: Finished difference Result 250 states and 313 transitions. [2019-10-14 23:35:39,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-14 23:35:39,180 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 57 [2019-10-14 23:35:39,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:35:39,183 INFO L225 Difference]: With dead ends: 250 [2019-10-14 23:35:39,183 INFO L226 Difference]: Without dead ends: 155 [2019-10-14 23:35:39,184 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2019-10-14 23:35:39,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2019-10-14 23:35:39,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 123. [2019-10-14 23:35:39,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-10-14 23:35:39,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 142 transitions. [2019-10-14 23:35:39,223 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 142 transitions. Word has length 57 [2019-10-14 23:35:39,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:35:39,224 INFO L462 AbstractCegarLoop]: Abstraction has 123 states and 142 transitions. [2019-10-14 23:35:39,224 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:35:39,224 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 142 transitions. [2019-10-14 23:35:39,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-10-14 23:35:39,226 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:35:39,226 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:35:39,226 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:35:39,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:35:39,227 INFO L82 PathProgramCache]: Analyzing trace with hash 23828646, now seen corresponding path program 1 times [2019-10-14 23:35:39,227 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:35:39,228 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284436475] [2019-10-14 23:35:39,228 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:35:39,228 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:35:39,228 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:35:39,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:39,585 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:35:39,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:39,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:39,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:39,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:39,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:39,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:39,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:39,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:39,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:39,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:39,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:39,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:35:39,678 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284436475] [2019-10-14 23:35:39,678 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:35:39,679 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-14 23:35:39,679 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829617867] [2019-10-14 23:35:39,679 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-14 23:35:39,680 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:35:39,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-14 23:35:39,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:35:39,680 INFO L87 Difference]: Start difference. First operand 123 states and 142 transitions. Second operand 7 states. [2019-10-14 23:35:40,073 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:35:41,481 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:35:42,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:35:42,224 INFO L93 Difference]: Finished difference Result 349 states and 441 transitions. [2019-10-14 23:35:42,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-14 23:35:42,225 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 70 [2019-10-14 23:35:42,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:35:42,228 INFO L225 Difference]: With dead ends: 349 [2019-10-14 23:35:42,229 INFO L226 Difference]: Without dead ends: 254 [2019-10-14 23:35:42,230 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2019-10-14 23:35:42,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2019-10-14 23:35:42,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 205. [2019-10-14 23:35:42,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2019-10-14 23:35:42,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 235 transitions. [2019-10-14 23:35:42,287 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 235 transitions. Word has length 70 [2019-10-14 23:35:42,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:35:42,288 INFO L462 AbstractCegarLoop]: Abstraction has 205 states and 235 transitions. [2019-10-14 23:35:42,288 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-14 23:35:42,288 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 235 transitions. [2019-10-14 23:35:42,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-10-14 23:35:42,290 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:35:42,290 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:35:42,290 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:35:42,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:35:42,291 INFO L82 PathProgramCache]: Analyzing trace with hash 765865706, now seen corresponding path program 1 times [2019-10-14 23:35:42,291 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:35:42,291 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482567825] [2019-10-14 23:35:42,291 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:35:42,292 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:35:42,292 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:35:42,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:42,638 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:35:42,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:42,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:42,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:42,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:42,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:42,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:42,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:42,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:42,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:42,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:42,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:42,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:42,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:42,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:35:42,733 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482567825] [2019-10-14 23:35:42,734 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:35:42,734 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:35:42,734 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420244762] [2019-10-14 23:35:42,735 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:35:42,735 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:35:42,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:35:42,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:35:42,736 INFO L87 Difference]: Start difference. First operand 205 states and 235 transitions. Second operand 9 states. [2019-10-14 23:35:43,434 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:35:44,850 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:35:45,180 WARN L191 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:35:45,459 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:35:45,734 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:35:46,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:35:46,984 INFO L93 Difference]: Finished difference Result 611 states and 771 transitions. [2019-10-14 23:35:46,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-14 23:35:46,985 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 84 [2019-10-14 23:35:46,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:35:46,990 INFO L225 Difference]: With dead ends: 611 [2019-10-14 23:35:46,990 INFO L226 Difference]: Without dead ends: 434 [2019-10-14 23:35:46,992 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2019-10-14 23:35:46,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2019-10-14 23:35:47,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 358. [2019-10-14 23:35:47,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2019-10-14 23:35:47,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 410 transitions. [2019-10-14 23:35:47,083 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 410 transitions. Word has length 84 [2019-10-14 23:35:47,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:35:47,084 INFO L462 AbstractCegarLoop]: Abstraction has 358 states and 410 transitions. [2019-10-14 23:35:47,084 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:35:47,084 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 410 transitions. [2019-10-14 23:35:47,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-14 23:35:47,086 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:35:47,086 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:35:47,086 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:35:47,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:35:47,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1305842374, now seen corresponding path program 1 times [2019-10-14 23:35:47,087 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:35:47,087 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613405733] [2019-10-14 23:35:47,087 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:35:47,087 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:35:47,088 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:35:47,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:47,454 WARN L191 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:35:47,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:47,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:47,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:47,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:47,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:47,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:47,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:47,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:47,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:47,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:47,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:47,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:47,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:47,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:35:47,588 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613405733] [2019-10-14 23:35:47,589 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:35:47,589 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-14 23:35:47,589 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190942227] [2019-10-14 23:35:47,590 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-14 23:35:47,590 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:35:47,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-14 23:35:47,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:35:47,590 INFO L87 Difference]: Start difference. First operand 358 states and 410 transitions. Second operand 10 states. [2019-10-14 23:35:48,070 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:35:49,318 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:35:49,601 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:35:49,876 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:35:50,173 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:35:51,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:35:51,370 INFO L93 Difference]: Finished difference Result 802 states and 995 transitions. [2019-10-14 23:35:51,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-14 23:35:51,371 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 88 [2019-10-14 23:35:51,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:35:51,377 INFO L225 Difference]: With dead ends: 802 [2019-10-14 23:35:51,377 INFO L226 Difference]: Without dead ends: 472 [2019-10-14 23:35:51,378 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=194, Invalid=508, Unknown=0, NotChecked=0, Total=702 [2019-10-14 23:35:51,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2019-10-14 23:35:51,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 357. [2019-10-14 23:35:51,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 357 states. [2019-10-14 23:35:51,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 407 transitions. [2019-10-14 23:35:51,449 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 407 transitions. Word has length 88 [2019-10-14 23:35:51,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:35:51,450 INFO L462 AbstractCegarLoop]: Abstraction has 357 states and 407 transitions. [2019-10-14 23:35:51,450 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-14 23:35:51,450 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 407 transitions. [2019-10-14 23:35:51,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-10-14 23:35:51,452 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:35:51,452 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:35:51,452 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:35:51,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:35:51,453 INFO L82 PathProgramCache]: Analyzing trace with hash -638509814, now seen corresponding path program 1 times [2019-10-14 23:35:51,453 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:35:51,453 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292517448] [2019-10-14 23:35:51,453 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:35:51,454 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:35:51,454 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:35:51,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:51,751 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:35:51,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:51,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:51,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:51,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:51,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:51,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:51,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:51,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:51,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:51,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:51,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:51,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:51,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:35:51,915 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292517448] [2019-10-14 23:35:51,915 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:35:51,915 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-14 23:35:51,916 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794631018] [2019-10-14 23:35:51,916 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-14 23:35:51,916 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:35:51,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-14 23:35:51,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:35:51,917 INFO L87 Difference]: Start difference. First operand 357 states and 407 transitions. Second operand 10 states. [2019-10-14 23:35:53,143 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:35:53,414 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2019-10-14 23:35:53,740 WARN L191 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:35:54,003 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:35:54,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:35:54,928 INFO L93 Difference]: Finished difference Result 805 states and 1004 transitions. [2019-10-14 23:35:54,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-14 23:35:54,929 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 89 [2019-10-14 23:35:54,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:35:54,932 INFO L225 Difference]: With dead ends: 805 [2019-10-14 23:35:54,933 INFO L226 Difference]: Without dead ends: 476 [2019-10-14 23:35:54,934 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2019-10-14 23:35:54,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2019-10-14 23:35:55,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 367. [2019-10-14 23:35:55,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 367 states. [2019-10-14 23:35:55,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 417 transitions. [2019-10-14 23:35:55,010 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 417 transitions. Word has length 89 [2019-10-14 23:35:55,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:35:55,011 INFO L462 AbstractCegarLoop]: Abstraction has 367 states and 417 transitions. [2019-10-14 23:35:55,011 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-14 23:35:55,011 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 417 transitions. [2019-10-14 23:35:55,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-10-14 23:35:55,013 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:35:55,013 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:35:55,013 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:35:55,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:35:55,013 INFO L82 PathProgramCache]: Analyzing trace with hash 63090060, now seen corresponding path program 1 times [2019-10-14 23:35:55,014 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:35:55,014 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202967379] [2019-10-14 23:35:55,014 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:35:55,014 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:35:55,014 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:35:55,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:55,285 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:35:55,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:55,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:55,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:55,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:55,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:55,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:55,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:55,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:55,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:55,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:55,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:55,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:55,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:55,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:35:55,447 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202967379] [2019-10-14 23:35:55,447 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:35:55,448 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-14 23:35:55,449 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790506671] [2019-10-14 23:35:55,450 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-14 23:35:55,454 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:35:55,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-14 23:35:55,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:35:55,455 INFO L87 Difference]: Start difference. First operand 367 states and 417 transitions. Second operand 12 states. [2019-10-14 23:35:56,120 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:35:56,383 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:35:56,646 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:35:57,408 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:35:57,692 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:35:57,980 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:35:59,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:35:59,082 INFO L93 Difference]: Finished difference Result 829 states and 1046 transitions. [2019-10-14 23:35:59,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-14 23:35:59,082 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 89 [2019-10-14 23:35:59,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:35:59,087 INFO L225 Difference]: With dead ends: 829 [2019-10-14 23:35:59,088 INFO L226 Difference]: Without dead ends: 490 [2019-10-14 23:35:59,090 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2019-10-14 23:35:59,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2019-10-14 23:35:59,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 375. [2019-10-14 23:35:59,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2019-10-14 23:35:59,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 425 transitions. [2019-10-14 23:35:59,181 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 425 transitions. Word has length 89 [2019-10-14 23:35:59,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:35:59,183 INFO L462 AbstractCegarLoop]: Abstraction has 375 states and 425 transitions. [2019-10-14 23:35:59,183 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-14 23:35:59,183 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 425 transitions. [2019-10-14 23:35:59,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-10-14 23:35:59,186 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:35:59,186 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:35:59,186 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:35:59,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:35:59,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1788570957, now seen corresponding path program 1 times [2019-10-14 23:35:59,187 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:35:59,187 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672372244] [2019-10-14 23:35:59,187 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:35:59,187 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:35:59,188 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:35:59,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:59,470 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:35:59,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:59,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:59,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:59,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:59,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:59,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:59,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:59,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:59,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:59,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:59,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:35:59,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:35:59,662 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672372244] [2019-10-14 23:35:59,662 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:35:59,662 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 23:35:59,663 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54174437] [2019-10-14 23:35:59,663 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:35:59,664 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:35:59,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:35:59,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:35:59,664 INFO L87 Difference]: Start difference. First operand 375 states and 425 transitions. Second operand 8 states. [2019-10-14 23:36:00,097 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:36:00,709 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:36:03,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:03,284 INFO L93 Difference]: Finished difference Result 1177 states and 1533 transitions. [2019-10-14 23:36:03,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-14 23:36:03,285 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 89 [2019-10-14 23:36:03,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:03,293 INFO L225 Difference]: With dead ends: 1177 [2019-10-14 23:36:03,293 INFO L226 Difference]: Without dead ends: 830 [2019-10-14 23:36:03,295 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 36 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2019-10-14 23:36:03,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2019-10-14 23:36:03,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 685. [2019-10-14 23:36:03,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 685 states. [2019-10-14 23:36:03,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 803 transitions. [2019-10-14 23:36:03,421 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 803 transitions. Word has length 89 [2019-10-14 23:36:03,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:03,421 INFO L462 AbstractCegarLoop]: Abstraction has 685 states and 803 transitions. [2019-10-14 23:36:03,421 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:36:03,422 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 803 transitions. [2019-10-14 23:36:03,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-10-14 23:36:03,423 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:03,424 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:36:03,424 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:03,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:03,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1370895219, now seen corresponding path program 1 times [2019-10-14 23:36:03,425 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:03,425 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544898988] [2019-10-14 23:36:03,425 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:03,425 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:03,425 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:03,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:03,757 WARN L191 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:03,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:03,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:03,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:03,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:03,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:03,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:03,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:03,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:03,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:03,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:03,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:03,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:03,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:03,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:03,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:36:03,848 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544898988] [2019-10-14 23:36:03,848 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:03,848 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 23:36:03,848 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012046914] [2019-10-14 23:36:03,849 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:36:03,849 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:03,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:36:03,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:36:03,850 INFO L87 Difference]: Start difference. First operand 685 states and 803 transitions. Second operand 8 states. [2019-10-14 23:36:04,434 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 189