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_product60.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:42:20,917 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:42:20,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:42:20,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:42:20,939 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:42:20,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:42:20,943 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:42:20,952 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:42:20,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:42:20,960 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:42:20,963 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:42:20,965 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:42:20,965 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:42:20,967 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:42:20,970 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:42:20,971 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:42:20,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:42:20,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:42:20,976 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:42:20,981 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:42:20,986 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:42:20,989 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:42:20,992 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:42:20,993 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:42:20,994 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:42:20,995 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:42:20,995 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:42:20,996 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:42:20,996 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:42:20,997 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:42:20,997 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:42:20,998 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:42:20,999 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:42:20,999 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:42:21,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:42:21,000 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:42:21,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:42:21,001 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:42:21,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:42:21,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:42:21,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:42:21,004 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 19:42:21,018 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:42:21,018 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:42:21,019 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:42:21,019 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:42:21,020 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:42:21,020 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:42:21,020 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:42:21,020 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:42:21,020 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:42:21,021 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:42:21,021 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:42:21,021 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:42:21,021 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:42:21,021 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:42:21,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:42:21,022 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:42:21,022 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:42:21,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:42:21,022 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:42:21,023 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:42:21,023 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:42:21,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:42:21,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:42:21,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:42:21,024 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:42:21,024 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:42:21,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:42:21,024 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:42:21,024 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:42:21,313 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:42:21,334 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:42:21,339 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:42:21,340 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:42:21,341 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:42:21,341 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product60.cil.c [2019-10-13 19:42:21,414 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ff61bea4/d49ada17ce4d41749f80aa04810dc9bc/FLAG9f00e8f14 [2019-10-13 19:42:21,898 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:42:21,899 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product60.cil.c [2019-10-13 19:42:21,913 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ff61bea4/d49ada17ce4d41749f80aa04810dc9bc/FLAG9f00e8f14 [2019-10-13 19:42:22,203 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ff61bea4/d49ada17ce4d41749f80aa04810dc9bc [2019-10-13 19:42:22,212 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:42:22,214 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:42:22,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:42:22,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:42:22,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:42:22,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:42:22" (1/1) ... [2019-10-13 19:42:22,224 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62a266f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:22, skipping insertion in model container [2019-10-13 19:42:22,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:42:22" (1/1) ... [2019-10-13 19:42:22,230 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:42:22,296 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:42:22,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:42:22,773 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:42:22,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:42:22,905 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:42:22,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:22 WrapperNode [2019-10-13 19:42:22,906 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:42:22,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:42:22,907 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:42:22,907 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:42:22,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:22" (1/1) ... [2019-10-13 19:42:22,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:22" (1/1) ... [2019-10-13 19:42:22,942 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:22" (1/1) ... [2019-10-13 19:42:22,943 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:22" (1/1) ... [2019-10-13 19:42:22,993 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:22" (1/1) ... [2019-10-13 19:42:23,013 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:22" (1/1) ... [2019-10-13 19:42:23,024 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:22" (1/1) ... [2019-10-13 19:42:23,035 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:42:23,036 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:42:23,036 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:42:23,036 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:42:23,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:42:23,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:42:23,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:42:23,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 19:42:23,108 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 19:42:23,108 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 19:42:23,108 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 19:42:23,108 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 19:42:23,108 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 19:42:23,109 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 19:42:23,109 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 19:42:23,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 19:42:23,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 19:42:23,109 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 19:42:23,110 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 19:42:23,110 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 19:42:23,110 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-13 19:42:23,110 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-13 19:42:23,110 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 19:42:23,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-13 19:42:23,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-13 19:42:23,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-13 19:42:23,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 19:42:23,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 19:42:23,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 19:42:23,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 19:42:23,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 19:42:23,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 19:42:23,112 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 19:42:23,112 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 19:42:23,112 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 19:42:23,112 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 19:42:23,113 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:42:23,113 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 19:42:23,113 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 19:42:23,113 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 19:42:23,113 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 19:42:23,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 19:42:23,113 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 19:42:23,114 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 19:42:23,114 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 19:42:23,114 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 19:42:23,114 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 19:42:23,114 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 19:42:23,114 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 19:42:23,115 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 19:42:23,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:42:23,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:42:23,115 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 19:42:23,115 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 19:42:23,115 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 19:42:23,116 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 19:42:23,116 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 19:42:23,116 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 19:42:23,116 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 19:42:23,116 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 19:42:23,116 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 19:42:23,116 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 19:42:23,117 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 19:42:23,117 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-13 19:42:23,117 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-13 19:42:23,117 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-13 19:42:23,117 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-13 19:42:23,117 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 19:42:23,118 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 19:42:23,118 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 19:42:23,118 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 19:42:23,118 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 19:42:23,118 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 19:42:23,118 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 19:42:23,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:42:23,119 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 19:42:23,119 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 19:42:23,119 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 19:42:23,119 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 19:42:23,119 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 19:42:23,120 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 19:42:23,120 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-13 19:42:23,120 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 19:42:23,120 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 19:42:23,120 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 19:42:23,120 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 19:42:23,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 19:42:23,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 19:42:23,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:42:23,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 19:42:23,121 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 19:42:23,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:42:23,121 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 19:42:23,122 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 19:42:23,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:42:23,122 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 19:42:23,123 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 19:42:23,123 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 19:42:23,123 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 19:42:23,124 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 19:42:23,124 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 19:42:23,124 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 19:42:23,124 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 19:42:23,124 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 19:42:23,124 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:42:23,125 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 19:42:23,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:42:23,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:42:23,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:42:24,338 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:42:24,339 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 19:42:24,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:42:24 BoogieIcfgContainer [2019-10-13 19:42:24,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:42:24,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:42:24,342 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:42:24,345 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:42:24,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:42:22" (1/3) ... [2019-10-13 19:42:24,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b33f6cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:42:24, skipping insertion in model container [2019-10-13 19:42:24,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:22" (2/3) ... [2019-10-13 19:42:24,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b33f6cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:42:24, skipping insertion in model container [2019-10-13 19:42:24,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:42:24" (3/3) ... [2019-10-13 19:42:24,348 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product60.cil.c [2019-10-13 19:42:24,358 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:42:24,367 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:42:24,378 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:42:24,404 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:42:24,405 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:42:24,405 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:42:24,405 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:42:24,405 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:42:24,405 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:42:24,405 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:42:24,406 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:42:24,432 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states. [2019-10-13 19:42:24,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-13 19:42:24,448 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:42:24,449 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:42:24,454 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:42:24,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:42:24,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1771327782, now seen corresponding path program 1 times [2019-10-13 19:42:24,469 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:42:24,470 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688059813] [2019-10-13 19:42:24,471 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:24,471 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:24,472 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:42:24,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:25,148 WARN L191 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:42:25,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:25,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:25,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:25,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:25,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:25,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:25,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:25,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:25,244 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:42:25,244 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688059813] [2019-10-13 19:42:25,245 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:42:25,246 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 19:42:25,246 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743212989] [2019-10-13 19:42:25,251 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:42:25,252 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:42:25,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:42:25,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:42:25,269 INFO L87 Difference]: Start difference. First operand 206 states. Second operand 4 states. [2019-10-13 19:42:26,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:42:26,399 INFO L93 Difference]: Finished difference Result 360 states and 456 transitions. [2019-10-13 19:42:26,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 19:42:26,401 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2019-10-13 19:42:26,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:42:26,429 INFO L225 Difference]: With dead ends: 360 [2019-10-13 19:42:26,430 INFO L226 Difference]: Without dead ends: 198 [2019-10-13 19:42:26,442 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:42:26,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2019-10-13 19:42:26,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 163. [2019-10-13 19:42:26,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2019-10-13 19:42:26,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 190 transitions. [2019-10-13 19:42:26,576 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 190 transitions. Word has length 59 [2019-10-13 19:42:26,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:42:26,577 INFO L462 AbstractCegarLoop]: Abstraction has 163 states and 190 transitions. [2019-10-13 19:42:26,577 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:42:26,577 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 190 transitions. [2019-10-13 19:42:26,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-13 19:42:26,589 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:42:26,589 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:42:26,589 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:42:26,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:42:26,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1467126020, now seen corresponding path program 1 times [2019-10-13 19:42:26,590 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:42:26,590 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689076914] [2019-10-13 19:42:26,591 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:26,591 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:26,591 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:42:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:26,965 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:42:26,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:26,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:26,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:26,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:26,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:27,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:27,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:27,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:27,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:27,015 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:42:27,016 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689076914] [2019-10-13 19:42:27,016 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:42:27,016 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 19:42:27,016 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558435019] [2019-10-13 19:42:27,022 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 19:42:27,022 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:42:27,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 19:42:27,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:42:27,023 INFO L87 Difference]: Start difference. First operand 163 states and 190 transitions. Second operand 5 states. [2019-10-13 19:42:27,565 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:42:28,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:42:28,650 INFO L93 Difference]: Finished difference Result 295 states and 356 transitions. [2019-10-13 19:42:28,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 19:42:28,651 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2019-10-13 19:42:28,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:42:28,655 INFO L225 Difference]: With dead ends: 295 [2019-10-13 19:42:28,655 INFO L226 Difference]: Without dead ends: 188 [2019-10-13 19:42:28,658 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:42:28,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2019-10-13 19:42:28,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 154. [2019-10-13 19:42:28,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-10-13 19:42:28,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 178 transitions. [2019-10-13 19:42:28,727 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 178 transitions. Word has length 60 [2019-10-13 19:42:28,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:42:28,727 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 178 transitions. [2019-10-13 19:42:28,728 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 19:42:28,728 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 178 transitions. [2019-10-13 19:42:28,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-13 19:42:28,730 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:42:28,730 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:42:28,731 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:42:28,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:42:28,731 INFO L82 PathProgramCache]: Analyzing trace with hash 2049486337, now seen corresponding path program 1 times [2019-10-13 19:42:28,731 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:42:28,732 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021322249] [2019-10-13 19:42:28,732 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:28,732 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:28,732 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:42:28,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:29,147 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:42:29,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:29,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:29,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:29,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:29,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:29,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:29,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:29,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:29,251 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:42:29,252 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021322249] [2019-10-13 19:42:29,252 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:42:29,252 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:42:29,252 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323113492] [2019-10-13 19:42:29,253 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:42:29,253 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:42:29,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:42:29,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:42:29,254 INFO L87 Difference]: Start difference. First operand 154 states and 178 transitions. Second operand 9 states. [2019-10-13 19:42:29,771 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:42:30,146 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:42:30,421 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:42:30,687 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:42:31,678 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:42:33,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:42:33,955 INFO L93 Difference]: Finished difference Result 515 states and 629 transitions. [2019-10-13 19:42:33,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 19:42:33,955 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2019-10-13 19:42:33,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:42:33,961 INFO L225 Difference]: With dead ends: 515 [2019-10-13 19:42:33,961 INFO L226 Difference]: Without dead ends: 389 [2019-10-13 19:42:33,963 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2019-10-13 19:42:33,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2019-10-13 19:42:34,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 324. [2019-10-13 19:42:34,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2019-10-13 19:42:34,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 388 transitions. [2019-10-13 19:42:34,039 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 388 transitions. Word has length 65 [2019-10-13 19:42:34,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:42:34,039 INFO L462 AbstractCegarLoop]: Abstraction has 324 states and 388 transitions. [2019-10-13 19:42:34,039 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:42:34,040 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 388 transitions. [2019-10-13 19:42:34,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-10-13 19:42:34,041 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:42:34,042 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:42:34,042 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:42:34,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:42:34,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1476281748, now seen corresponding path program 1 times [2019-10-13 19:42:34,042 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:42:34,043 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115141360] [2019-10-13 19:42:34,043 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:34,043 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:34,043 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:42:34,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:34,398 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:42:34,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:34,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:34,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:34,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:34,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:34,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:34,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:34,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:34,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:34,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:34,497 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 19:42:34,498 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115141360] [2019-10-13 19:42:34,498 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:42:34,498 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:42:34,498 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712686260] [2019-10-13 19:42:34,499 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:42:34,499 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:42:34,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:42:34,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:42:34,500 INFO L87 Difference]: Start difference. First operand 324 states and 388 transitions. Second operand 9 states. [2019-10-13 19:42:35,061 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:42:35,893 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:42:37,001 WARN L191 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:42:37,288 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:42:37,619 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:42:37,923 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:42:38,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:42:38,869 INFO L93 Difference]: Finished difference Result 819 states and 1054 transitions. [2019-10-13 19:42:38,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 19:42:38,869 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2019-10-13 19:42:38,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:42:38,874 INFO L225 Difference]: With dead ends: 819 [2019-10-13 19:42:38,874 INFO L226 Difference]: Without dead ends: 523 [2019-10-13 19:42:38,877 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2019-10-13 19:42:38,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2019-10-13 19:42:38,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 455. [2019-10-13 19:42:38,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2019-10-13 19:42:38,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 543 transitions. [2019-10-13 19:42:38,971 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 543 transitions. Word has length 70 [2019-10-13 19:42:38,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:42:38,972 INFO L462 AbstractCegarLoop]: Abstraction has 455 states and 543 transitions. [2019-10-13 19:42:38,972 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:42:38,972 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 543 transitions. [2019-10-13 19:42:38,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-13 19:42:38,975 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:42:38,975 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:42:38,975 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:42:38,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:42:38,976 INFO L82 PathProgramCache]: Analyzing trace with hash 340334758, now seen corresponding path program 1 times [2019-10-13 19:42:38,976 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:42:38,976 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186016377] [2019-10-13 19:42:38,976 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:38,976 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:38,976 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:42:39,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:39,276 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:42:39,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:39,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:39,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:39,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:39,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:39,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:39,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:39,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:39,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:39,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:39,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:39,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:39,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:39,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:39,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:39,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:39,443 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:42:39,444 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186016377] [2019-10-13 19:42:39,444 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:42:39,444 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:42:39,445 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498040655] [2019-10-13 19:42:39,445 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:42:39,445 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:42:39,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:42:39,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:42:39,446 INFO L87 Difference]: Start difference. First operand 455 states and 543 transitions. Second operand 9 states. [2019-10-13 19:42:40,976 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:42:41,297 WARN L191 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2019-10-13 19:42:41,598 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:42:41,872 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:42:43,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:42:43,005 INFO L93 Difference]: Finished difference Result 975 states and 1246 transitions. [2019-10-13 19:42:43,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 19:42:43,006 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 108 [2019-10-13 19:42:43,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:42:43,012 INFO L225 Difference]: With dead ends: 975 [2019-10-13 19:42:43,012 INFO L226 Difference]: Without dead ends: 548 [2019-10-13 19:42:43,014 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2019-10-13 19:42:43,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2019-10-13 19:42:43,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 468. [2019-10-13 19:42:43,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2019-10-13 19:42:43,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 557 transitions. [2019-10-13 19:42:43,125 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 557 transitions. Word has length 108 [2019-10-13 19:42:43,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:42:43,126 INFO L462 AbstractCegarLoop]: Abstraction has 468 states and 557 transitions. [2019-10-13 19:42:43,126 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:42:43,126 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 557 transitions. [2019-10-13 19:42:43,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-13 19:42:43,128 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:42:43,128 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:42:43,129 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:42:43,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:42:43,129 INFO L82 PathProgramCache]: Analyzing trace with hash -2026359836, now seen corresponding path program 1 times [2019-10-13 19:42:43,129 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:42:43,129 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348266594] [2019-10-13 19:42:43,130 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:43,130 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:43,130 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:42:43,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:43,423 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:42:43,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:43,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:43,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:43,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:43,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:43,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:43,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:43,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:43,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:43,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:43,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:43,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:43,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:43,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:43,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:43,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:43,595 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:42:43,596 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348266594] [2019-10-13 19:42:43,597 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:42:43,597 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 19:42:43,597 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594282884] [2019-10-13 19:42:43,598 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 19:42:43,599 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:42:43,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 19:42:43,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-10-13 19:42:43,600 INFO L87 Difference]: Start difference. First operand 468 states and 557 transitions. Second operand 11 states. [2019-10-13 19:42:44,221 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:42:44,524 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:42:44,809 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:42:45,801 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:42:46,125 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:42:46,435 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:42:47,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:42:47,655 INFO L93 Difference]: Finished difference Result 998 states and 1270 transitions. [2019-10-13 19:42:47,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 19:42:47,656 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 108 [2019-10-13 19:42:47,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:42:47,660 INFO L225 Difference]: With dead ends: 998 [2019-10-13 19:42:47,660 INFO L226 Difference]: Without dead ends: 558 [2019-10-13 19:42:47,662 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2019-10-13 19:42:47,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2019-10-13 19:42:47,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 476. [2019-10-13 19:42:47,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 476 states. [2019-10-13 19:42:47,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 565 transitions. [2019-10-13 19:42:47,740 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 565 transitions. Word has length 108 [2019-10-13 19:42:47,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:42:47,741 INFO L462 AbstractCegarLoop]: Abstraction has 476 states and 565 transitions. [2019-10-13 19:42:47,741 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 19:42:47,741 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 565 transitions. [2019-10-13 19:42:47,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-13 19:42:47,743 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:42:47,743 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:42:47,743 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:42:47,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:42:47,744 INFO L82 PathProgramCache]: Analyzing trace with hash 2028067331, now seen corresponding path program 1 times [2019-10-13 19:42:47,744 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:42:47,744 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260643727] [2019-10-13 19:42:47,744 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:47,745 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:47,745 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:42:47,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:48,043 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:42:48,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:48,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:48,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:48,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:48,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:48,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:48,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:48,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:48,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:48,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:48,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:48,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:48,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:48,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:48,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:48,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:48,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:48,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:48,198 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:42:48,199 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260643727] [2019-10-13 19:42:48,199 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:42:48,199 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 19:42:48,199 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596897115] [2019-10-13 19:42:48,200 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 19:42:48,201 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:42:48,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 19:42:48,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:42:48,202 INFO L87 Difference]: Start difference. First operand 476 states and 565 transitions. Second operand 7 states. [2019-10-13 19:42:48,690 WARN L191 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:42:49,250 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:42:51,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:42:51,495 INFO L93 Difference]: Finished difference Result 1479 states and 1900 transitions. [2019-10-13 19:42:51,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 19:42:51,495 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 108 [2019-10-13 19:42:51,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:42:51,503 INFO L225 Difference]: With dead ends: 1479 [2019-10-13 19:42:51,503 INFO L226 Difference]: Without dead ends: 1031 [2019-10-13 19:42:51,506 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2019-10-13 19:42:51,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2019-10-13 19:42:51,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 953. [2019-10-13 19:42:51,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 953 states. [2019-10-13 19:42:51,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 1151 transitions. [2019-10-13 19:42:51,638 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 1151 transitions. Word has length 108 [2019-10-13 19:42:51,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:42:51,639 INFO L462 AbstractCegarLoop]: Abstraction has 953 states and 1151 transitions. [2019-10-13 19:42:51,639 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 19:42:51,639 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 1151 transitions. [2019-10-13 19:42:51,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-13 19:42:51,641 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:42:51,642 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:42:51,642 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:42:51,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:42:51,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1144962269, now seen corresponding path program 1 times [2019-10-13 19:42:51,643 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:42:51,643 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520014724] [2019-10-13 19:42:51,643 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:51,643 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:51,643 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:42:51,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:51,958 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:42:51,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:51,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:51,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:51,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:51,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:51,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:52,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:52,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:52,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:52,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:52,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:52,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:52,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:52,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:52,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:52,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:52,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:52,130 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:42:52,130 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520014724] [2019-10-13 19:42:52,130 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:42:52,130 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 19:42:52,131 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423768128] [2019-10-13 19:42:52,131 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 19:42:52,131 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:42:52,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 19:42:52,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:42:52,132 INFO L87 Difference]: Start difference. First operand 953 states and 1151 transitions. Second operand 12 states. [2019-10-13 19:42:53,017 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:42:53,799 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:42:54,565 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:42:54,937 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:42:55,241 WARN L191 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-10-13 19:42:55,568 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:42:55,881 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:42:58,150 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:42:58,491 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:42:59,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:42:59,122 INFO L93 Difference]: Finished difference Result 2713 states and 3488 transitions. [2019-10-13 19:42:59,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-10-13 19:42:59,123 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 112 [2019-10-13 19:42:59,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:42:59,135 INFO L225 Difference]: With dead ends: 2713 [2019-10-13 19:42:59,135 INFO L226 Difference]: Without dead ends: 1980 [2019-10-13 19:42:59,139 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2019-10-13 19:42:59,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1980 states. [2019-10-13 19:42:59,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1980 to 1674. [2019-10-13 19:42:59,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1674 states. [2019-10-13 19:42:59,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1674 states to 1674 states and 2008 transitions. [2019-10-13 19:42:59,466 INFO L78 Accepts]: Start accepts. Automaton has 1674 states and 2008 transitions. Word has length 112 [2019-10-13 19:42:59,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:42:59,467 INFO L462 AbstractCegarLoop]: Abstraction has 1674 states and 2008 transitions. [2019-10-13 19:42:59,467 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 19:42:59,468 INFO L276 IsEmpty]: Start isEmpty. Operand 1674 states and 2008 transitions. [2019-10-13 19:42:59,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-13 19:42:59,476 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:42:59,477 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:42:59,478 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:42:59,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:42:59,478 INFO L82 PathProgramCache]: Analyzing trace with hash 164237146, now seen corresponding path program 1 times [2019-10-13 19:42:59,479 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:42:59,479 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254134437] [2019-10-13 19:42:59,479 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:59,480 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:59,480 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:42:59,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,865 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:42:59,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:59,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:00,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:00,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:00,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:00,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:00,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:00,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:00,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:00,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:00,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:00,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:00,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:00,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:00,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:00,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:00,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:00,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:00,190 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-13 19:43:00,192 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254134437] [2019-10-13 19:43:00,193 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556789626] [2019-10-13 19:43:00,193 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:43:00,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:00,414 INFO L256 TraceCheckSpWp]: Trace formula consists of 979 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 19:43:00,431 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:43:00,621 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 28 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:43:00,621 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-13 19:43:00,622 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 7] total 20 [2019-10-13 19:43:00,622 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953140789] [2019-10-13 19:43:00,623 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-13 19:43:00,624 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:43:00,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-13 19:43:00,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2019-10-13 19:43:00,624 INFO L87 Difference]: Start difference. First operand 1674 states and 2008 transitions. Second operand 20 states.