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_spec1_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:33:51,058 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:33:51,063 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:33:51,081 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:33:51,081 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:33:51,084 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:33:51,086 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:33:51,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:33:51,100 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:33:51,101 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:33:51,102 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:33:51,104 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:33:51,104 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:33:51,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:33:51,111 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:33:51,113 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:33:51,114 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:33:51,117 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:33:51,118 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:33:51,123 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:33:51,128 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:33:51,131 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:33:51,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:33:51,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:33:51,139 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:33:51,139 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:33:51,140 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:33:51,141 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:33:51,143 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:33:51,144 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:33:51,144 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:33:51,145 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:33:51,146 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:33:51,146 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:33:51,148 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:33:51,148 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:33:51,149 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:33:51,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:33:51,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:33:51,150 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:33:51,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:33:51,152 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 23:33:51,171 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:33:51,171 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:33:51,172 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:33:51,173 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:33:51,173 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:33:51,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:33:51,173 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:33:51,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:33:51,174 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:33:51,174 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:33:51,174 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:33:51,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:33:51,174 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:33:51,175 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:33:51,175 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:33:51,175 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:33:51,175 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:33:51,176 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:33:51,176 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:33:51,176 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:33:51,176 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:33:51,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:33:51,177 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:33:51,177 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:33:51,177 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:33:51,177 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:33:51,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:33:51,178 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:33:51,178 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:33:51,450 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:33:51,468 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:33:51,472 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:33:51,473 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:33:51,473 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:33:51,474 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product58.cil.c [2019-10-14 23:33:51,543 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2d5ec3fe/c95476ca98e74c179933de0deedffb8d/FLAG5655f9c88 [2019-10-14 23:33:52,099 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:33:52,100 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product58.cil.c [2019-10-14 23:33:52,116 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2d5ec3fe/c95476ca98e74c179933de0deedffb8d/FLAG5655f9c88 [2019-10-14 23:33:52,417 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2d5ec3fe/c95476ca98e74c179933de0deedffb8d [2019-10-14 23:33:52,428 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:33:52,430 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:33:52,431 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:33:52,431 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:33:52,435 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:33:52,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:33:52" (1/1) ... [2019-10-14 23:33:52,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@286ff162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:33:52, skipping insertion in model container [2019-10-14 23:33:52,439 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:33:52" (1/1) ... [2019-10-14 23:33:52,445 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:33:52,501 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:33:52,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:33:52,962 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:33:53,073 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:33:53,114 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:33:53,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:33:53 WrapperNode [2019-10-14 23:33:53,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:33:53,116 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:33:53,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:33:53,116 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:33:53,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:33:53" (1/1) ... [2019-10-14 23:33:53,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:33:53" (1/1) ... [2019-10-14 23:33:53,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:33:53" (1/1) ... [2019-10-14 23:33:53,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:33:53" (1/1) ... [2019-10-14 23:33:53,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:33:53" (1/1) ... [2019-10-14 23:33:53,196 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:33:53" (1/1) ... [2019-10-14 23:33:53,202 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:33:53" (1/1) ... [2019-10-14 23:33:53,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:33:53,211 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:33:53,211 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:33:53,211 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:33:53,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:33:53" (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 23:33:53,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:33:53,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:33:53,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-14 23:33:53,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-14 23:33:53,268 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-14 23:33:53,268 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-14 23:33:53,268 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-14 23:33:53,268 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-14 23:33:53,269 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-14 23:33:53,269 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-14 23:33:53,269 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-14 23:33:53,269 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-14 23:33:53,269 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-14 23:33:53,270 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-14 23:33:53,270 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-14 23:33:53,270 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-14 23:33:53,270 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:33:53,270 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-14 23:33:53,270 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-14 23:33:53,271 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-14 23:33:53,271 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-14 23:33:53,271 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-14 23:33:53,271 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-14 23:33:53,271 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-14 23:33:53,272 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-14 23:33:53,272 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-14 23:33:53,272 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-14 23:33:53,272 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-14 23:33:53,272 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-14 23:33:53,272 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-14 23:33:53,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-14 23:33:53,273 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-14 23:33:53,273 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-14 23:33:53,273 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-14 23:33:53,273 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-14 23:33:53,273 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-14 23:33:53,273 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-14 23:33:53,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-14 23:33:53,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-14 23:33:53,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-14 23:33:53,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-14 23:33:53,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-14 23:33:53,275 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:33:53,275 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:33:53,275 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-14 23:33:53,275 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-14 23:33:53,275 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-14 23:33:53,275 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-14 23:33:53,276 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-14 23:33:53,276 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-14 23:33:53,276 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-14 23:33:53,276 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-14 23:33:53,276 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-14 23:33:53,276 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-14 23:33:53,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:33:53,277 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-14 23:33:53,277 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-14 23:33:53,277 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-14 23:33:53,277 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-14 23:33:53,277 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-14 23:33:53,277 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-14 23:33:53,278 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-14 23:33:53,278 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-14 23:33:53,278 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-14 23:33:53,278 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-14 23:33:53,278 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:33:53,278 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-14 23:33:53,278 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-14 23:33:53,279 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-14 23:33:53,279 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-14 23:33:53,279 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-14 23:33:53,279 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-14 23:33:53,279 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-14 23:33:53,279 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-14 23:33:53,280 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-14 23:33:53,280 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-14 23:33:53,280 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-14 23:33:53,280 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-14 23:33:53,280 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-14 23:33:53,280 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-14 23:33:53,280 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:33:53,281 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:33:53,281 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-14 23:33:53,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:33:53,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:33:53,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:33:53,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:33:53,281 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-14 23:33:53,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:33:53,282 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-14 23:33:53,282 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-14 23:33:53,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:33:53,282 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-14 23:33:53,282 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-14 23:33:53,283 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-14 23:33:53,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:33:53,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:33:53,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:33:54,406 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:33:54,407 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-14 23:33:54,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:33:54 BoogieIcfgContainer [2019-10-14 23:33:54,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:33:54,410 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:33:54,411 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:33:54,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:33:54,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:33:52" (1/3) ... [2019-10-14 23:33:54,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61557bf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:33:54, skipping insertion in model container [2019-10-14 23:33:54,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:33:53" (2/3) ... [2019-10-14 23:33:54,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61557bf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:33:54, skipping insertion in model container [2019-10-14 23:33:54,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:33:54" (3/3) ... [2019-10-14 23:33:54,419 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product58.cil.c [2019-10-14 23:33:54,429 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:33:54,440 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:33:54,451 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:33:54,478 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:33:54,478 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:33:54,478 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:33:54,478 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:33:54,478 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:33:54,479 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:33:54,479 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:33:54,479 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:33:54,501 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states. [2019-10-14 23:33:54,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-14 23:33:54,511 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:33:54,512 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] [2019-10-14 23:33:54,514 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:33:54,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:33:54,520 INFO L82 PathProgramCache]: Analyzing trace with hash 252979836, now seen corresponding path program 1 times [2019-10-14 23:33:54,530 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:33:54,530 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859700315] [2019-10-14 23:33:54,531 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:33:54,531 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:33:54,531 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:33:54,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:55,245 WARN L191 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:33:55,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:55,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:55,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:55,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:55,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:55,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:55,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:55,363 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 23:33:55,372 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859700315] [2019-10-14 23:33:55,373 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:33:55,373 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:33:55,374 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634373046] [2019-10-14 23:33:55,380 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:33:55,381 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:33:55,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:33:55,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:33:55,399 INFO L87 Difference]: Start difference. First operand 187 states. Second operand 3 states. [2019-10-14 23:33:56,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:33:56,663 INFO L93 Difference]: Finished difference Result 332 states and 428 transitions. [2019-10-14 23:33:56,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:33:56,665 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2019-10-14 23:33:56,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:33:56,680 INFO L225 Difference]: With dead ends: 332 [2019-10-14 23:33:56,681 INFO L226 Difference]: Without dead ends: 179 [2019-10-14 23:33:56,685 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:33:56,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2019-10-14 23:33:56,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 144. [2019-10-14 23:33:56,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-10-14 23:33:56,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 168 transitions. [2019-10-14 23:33:56,780 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 168 transitions. Word has length 46 [2019-10-14 23:33:56,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:33:56,781 INFO L462 AbstractCegarLoop]: Abstraction has 144 states and 168 transitions. [2019-10-14 23:33:56,781 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:33:56,781 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 168 transitions. [2019-10-14 23:33:56,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-14 23:33:56,785 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:33:56,785 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] [2019-10-14 23:33:56,785 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:33:56,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:33:56,786 INFO L82 PathProgramCache]: Analyzing trace with hash -810106616, now seen corresponding path program 1 times [2019-10-14 23:33:56,786 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:33:56,786 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579227184] [2019-10-14 23:33:56,786 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:33:56,787 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:33:56,787 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:33:56,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:57,164 WARN L191 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:33:57,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:57,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:57,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:57,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:57,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:57,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:57,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:57,197 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 23:33:57,197 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579227184] [2019-10-14 23:33:57,197 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:33:57,198 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 23:33:57,198 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132457810] [2019-10-14 23:33:57,199 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:33:57,200 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:33:57,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:33:57,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:33:57,200 INFO L87 Difference]: Start difference. First operand 144 states and 168 transitions. Second operand 4 states. [2019-10-14 23:33:57,687 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:33:58,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:33:58,652 INFO L93 Difference]: Finished difference Result 261 states and 315 transitions. [2019-10-14 23:33:58,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-14 23:33:58,653 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2019-10-14 23:33:58,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:33:58,656 INFO L225 Difference]: With dead ends: 261 [2019-10-14 23:33:58,657 INFO L226 Difference]: Without dead ends: 163 [2019-10-14 23:33:58,658 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:33:58,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2019-10-14 23:33:58,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 135. [2019-10-14 23:33:58,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2019-10-14 23:33:58,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 156 transitions. [2019-10-14 23:33:58,698 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 156 transitions. Word has length 47 [2019-10-14 23:33:58,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:33:58,699 INFO L462 AbstractCegarLoop]: Abstraction has 135 states and 156 transitions. [2019-10-14 23:33:58,699 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:33:58,699 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 156 transitions. [2019-10-14 23:33:58,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-14 23:33:58,701 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:33:58,701 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 23:33:58,701 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:33:58,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:33:58,702 INFO L82 PathProgramCache]: Analyzing trace with hash 2111665897, now seen corresponding path program 1 times [2019-10-14 23:33:58,702 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:33:58,702 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561664888] [2019-10-14 23:33:58,703 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:33:58,703 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:33:58,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:33:58,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:59,041 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:33:59,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:59,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:59,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:59,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:59,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:59,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:59,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:33:59,135 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 23:33:59,135 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561664888] [2019-10-14 23:33:59,136 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:33:59,136 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 23:33:59,136 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899183256] [2019-10-14 23:33:59,137 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:33:59,137 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:33:59,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:33:59,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:33:59,137 INFO L87 Difference]: Start difference. First operand 135 states and 156 transitions. Second operand 8 states. [2019-10-14 23:33:59,679 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:34:00,023 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:34:00,299 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:34:00,594 WARN L191 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:34:01,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:34:01,988 INFO L93 Difference]: Finished difference Result 274 states and 333 transitions. [2019-10-14 23:34:01,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-14 23:34:01,989 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2019-10-14 23:34:01,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:34:01,992 INFO L225 Difference]: With dead ends: 274 [2019-10-14 23:34:01,992 INFO L226 Difference]: Without dead ends: 163 [2019-10-14 23:34:01,993 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:34:01,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2019-10-14 23:34:02,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 135. [2019-10-14 23:34:02,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2019-10-14 23:34:02,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 155 transitions. [2019-10-14 23:34:02,032 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 155 transitions. Word has length 52 [2019-10-14 23:34:02,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:34:02,032 INFO L462 AbstractCegarLoop]: Abstraction has 135 states and 155 transitions. [2019-10-14 23:34:02,032 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:34:02,033 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 155 transitions. [2019-10-14 23:34:02,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-14 23:34:02,035 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:34:02,035 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] [2019-10-14 23:34:02,036 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:34:02,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:34:02,036 INFO L82 PathProgramCache]: Analyzing trace with hash -2095161910, now seen corresponding path program 1 times [2019-10-14 23:34:02,036 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:34:02,036 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388362678] [2019-10-14 23:34:02,037 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:02,037 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:02,037 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:34:02,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:02,367 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:34:02,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:02,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:02,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:02,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:02,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:02,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:02,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:02,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:02,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:02,444 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 23:34:02,445 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388362678] [2019-10-14 23:34:02,445 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:34:02,445 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-14 23:34:02,445 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366379994] [2019-10-14 23:34:02,447 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-14 23:34:02,447 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:34:02,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-14 23:34:02,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-14 23:34:02,449 INFO L87 Difference]: Start difference. First operand 135 states and 155 transitions. Second operand 6 states. [2019-10-14 23:34:02,872 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:34:04,215 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:34:05,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:34:05,067 INFO L93 Difference]: Finished difference Result 371 states and 455 transitions. [2019-10-14 23:34:05,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-14 23:34:05,067 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2019-10-14 23:34:05,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:34:05,071 INFO L225 Difference]: With dead ends: 371 [2019-10-14 23:34:05,072 INFO L226 Difference]: Without dead ends: 260 [2019-10-14 23:34:05,073 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:34:05,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2019-10-14 23:34:05,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 217. [2019-10-14 23:34:05,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2019-10-14 23:34:05,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 246 transitions. [2019-10-14 23:34:05,121 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 246 transitions. Word has length 65 [2019-10-14 23:34:05,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:34:05,122 INFO L462 AbstractCegarLoop]: Abstraction has 217 states and 246 transitions. [2019-10-14 23:34:05,122 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-14 23:34:05,122 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 246 transitions. [2019-10-14 23:34:05,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-10-14 23:34:05,127 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:34:05,127 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] [2019-10-14 23:34:05,128 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:34:05,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:34:05,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1983258682, now seen corresponding path program 1 times [2019-10-14 23:34:05,128 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:34:05,129 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039767688] [2019-10-14 23:34:05,129 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:05,129 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:05,129 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:34:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:05,465 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:34:05,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:05,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:05,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:05,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:05,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:05,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:05,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:05,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:05,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:05,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:05,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:05,545 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 23:34:05,546 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039767688] [2019-10-14 23:34:05,546 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:34:05,546 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 23:34:05,546 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915458080] [2019-10-14 23:34:05,547 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:34:05,547 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:34:05,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:34:05,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:34:05,548 INFO L87 Difference]: Start difference. First operand 217 states and 246 transitions. Second operand 8 states. [2019-10-14 23:34:06,077 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:34:07,190 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:34:07,519 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:34:08,077 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:34:08,363 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:34:08,643 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:34:09,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:34:09,725 INFO L93 Difference]: Finished difference Result 649 states and 794 transitions. [2019-10-14 23:34:09,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-14 23:34:09,725 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2019-10-14 23:34:09,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:34:09,730 INFO L225 Difference]: With dead ends: 649 [2019-10-14 23:34:09,731 INFO L226 Difference]: Without dead ends: 456 [2019-10-14 23:34:09,732 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2019-10-14 23:34:09,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2019-10-14 23:34:09,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 389. [2019-10-14 23:34:09,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2019-10-14 23:34:09,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 442 transitions. [2019-10-14 23:34:09,822 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 442 transitions. Word has length 79 [2019-10-14 23:34:09,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:34:09,823 INFO L462 AbstractCegarLoop]: Abstraction has 389 states and 442 transitions. [2019-10-14 23:34:09,823 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:34:09,823 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 442 transitions. [2019-10-14 23:34:09,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-10-14 23:34:09,825 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:34:09,825 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] [2019-10-14 23:34:09,825 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:34:09,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:34:09,826 INFO L82 PathProgramCache]: Analyzing trace with hash -2086163970, now seen corresponding path program 1 times [2019-10-14 23:34:09,826 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:34:09,826 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504567995] [2019-10-14 23:34:09,826 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:09,827 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:09,827 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:34:09,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:10,140 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:34:10,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:10,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:10,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:10,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:10,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:10,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:10,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:10,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:10,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:10,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:10,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:10,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:10,234 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 23:34:10,235 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504567995] [2019-10-14 23:34:10,235 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:34:10,235 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:34:10,236 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84690840] [2019-10-14 23:34:10,236 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:34:10,236 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:34:10,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:34:10,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:34:10,237 INFO L87 Difference]: Start difference. First operand 389 states and 442 transitions. Second operand 9 states. [2019-10-14 23:34:10,736 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:34:11,967 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:34:12,283 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:34:13,564 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:34:13,862 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:34:14,167 WARN L191 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:34:14,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:34:14,451 INFO L93 Difference]: Finished difference Result 498 states and 622 transitions. [2019-10-14 23:34:14,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-14 23:34:14,451 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2019-10-14 23:34:14,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:34:14,456 INFO L225 Difference]: With dead ends: 498 [2019-10-14 23:34:14,456 INFO L226 Difference]: Without dead ends: 495 [2019-10-14 23:34:14,457 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2019-10-14 23:34:14,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2019-10-14 23:34:14,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 389. [2019-10-14 23:34:14,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2019-10-14 23:34:14,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 441 transitions. [2019-10-14 23:34:14,532 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 441 transitions. Word has length 83 [2019-10-14 23:34:14,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:34:14,533 INFO L462 AbstractCegarLoop]: Abstraction has 389 states and 441 transitions. [2019-10-14 23:34:14,533 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:34:14,533 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 441 transitions. [2019-10-14 23:34:14,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-10-14 23:34:14,535 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:34:14,535 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] [2019-10-14 23:34:14,536 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:34:14,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:34:14,536 INFO L82 PathProgramCache]: Analyzing trace with hash -1672866455, now seen corresponding path program 1 times [2019-10-14 23:34:14,536 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:34:14,537 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172912792] [2019-10-14 23:34:14,537 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:14,537 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:14,537 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:34:14,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:14,863 WARN L191 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:34:14,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:14,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:14,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:14,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:14,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:14,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:14,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:14,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:14,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:14,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:14,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:14,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:14,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:14,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:15,006 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:34:15,006 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172912792] [2019-10-14 23:34:15,006 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:34:15,006 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:34:15,007 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043215232] [2019-10-14 23:34:15,007 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:34:15,008 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:34:15,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:34:15,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:34:15,009 INFO L87 Difference]: Start difference. First operand 389 states and 441 transitions. Second operand 9 states. [2019-10-14 23:34:16,138 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:34:16,441 WARN L191 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:34:16,720 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:34:16,987 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:34:18,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:34:18,291 INFO L93 Difference]: Finished difference Result 868 states and 1072 transitions. [2019-10-14 23:34:18,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-14 23:34:18,292 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 99 [2019-10-14 23:34:18,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:34:18,298 INFO L225 Difference]: With dead ends: 868 [2019-10-14 23:34:18,299 INFO L226 Difference]: Without dead ends: 503 [2019-10-14 23:34:18,301 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2019-10-14 23:34:18,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2019-10-14 23:34:18,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 399. [2019-10-14 23:34:18,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2019-10-14 23:34:18,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 451 transitions. [2019-10-14 23:34:18,458 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 451 transitions. Word has length 99 [2019-10-14 23:34:18,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:34:18,459 INFO L462 AbstractCegarLoop]: Abstraction has 399 states and 451 transitions. [2019-10-14 23:34:18,459 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:34:18,459 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 451 transitions. [2019-10-14 23:34:18,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-10-14 23:34:18,465 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:34:18,465 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] [2019-10-14 23:34:18,466 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:34:18,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:34:18,466 INFO L82 PathProgramCache]: Analyzing trace with hash -779380117, now seen corresponding path program 1 times [2019-10-14 23:34:18,467 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:34:18,467 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946980422] [2019-10-14 23:34:18,467 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:18,467 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:18,467 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:34:18,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:18,779 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:34:18,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:18,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:18,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:18,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:18,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:18,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:18,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:18,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:18,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:18,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:18,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:18,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:18,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:18,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:18,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:18,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:18,940 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:34:18,941 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946980422] [2019-10-14 23:34:18,941 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:34:18,941 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-14 23:34:18,941 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380726816] [2019-10-14 23:34:18,942 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-14 23:34:18,942 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:34:18,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-14 23:34:18,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:34:18,943 INFO L87 Difference]: Start difference. First operand 399 states and 451 transitions. Second operand 11 states. [2019-10-14 23:34:19,706 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:34:19,969 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:34:20,219 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:34:20,965 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:34:21,238 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:34:21,512 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:34:22,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:34:22,912 INFO L93 Difference]: Finished difference Result 888 states and 1094 transitions. [2019-10-14 23:34:22,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-14 23:34:22,912 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 99 [2019-10-14 23:34:22,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:34:22,919 INFO L225 Difference]: With dead ends: 888 [2019-10-14 23:34:22,919 INFO L226 Difference]: Without dead ends: 513 [2019-10-14 23:34:22,921 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2019-10-14 23:34:22,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2019-10-14 23:34:23,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 407. [2019-10-14 23:34:23,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 407 states. [2019-10-14 23:34:23,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 459 transitions. [2019-10-14 23:34:23,008 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 459 transitions. Word has length 99 [2019-10-14 23:34:23,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:34:23,009 INFO L462 AbstractCegarLoop]: Abstraction has 407 states and 459 transitions. [2019-10-14 23:34:23,009 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-14 23:34:23,009 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 459 transitions. [2019-10-14 23:34:23,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-10-14 23:34:23,012 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:34:23,012 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] [2019-10-14 23:34:23,013 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:34:23,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:34:23,013 INFO L82 PathProgramCache]: Analyzing trace with hash -787139476, now seen corresponding path program 1 times [2019-10-14 23:34:23,013 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:34:23,013 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968070786] [2019-10-14 23:34:23,014 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:23,014 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:23,014 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:34:23,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:23,339 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:34:23,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:23,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:23,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:23,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:23,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:23,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:23,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:23,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:23,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:23,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:23,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:23,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:23,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:23,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:23,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:23,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:23,479 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:34:23,479 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968070786] [2019-10-14 23:34:23,479 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:34:23,480 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-14 23:34:23,480 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837025293] [2019-10-14 23:34:23,480 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-14 23:34:23,481 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:34:23,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-14 23:34:23,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:34:23,481 INFO L87 Difference]: Start difference. First operand 407 states and 459 transitions. Second operand 7 states. [2019-10-14 23:34:24,265 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:34:24,792 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:34:27,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:34:27,212 INFO L93 Difference]: Finished difference Result 1230 states and 1568 transitions. [2019-10-14 23:34:27,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-14 23:34:27,213 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 99 [2019-10-14 23:34:27,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:34:27,219 INFO L225 Difference]: With dead ends: 1230 [2019-10-14 23:34:27,220 INFO L226 Difference]: Without dead ends: 847 [2019-10-14 23:34:27,222 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 39 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2019-10-14 23:34:27,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2019-10-14 23:34:27,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 727. [2019-10-14 23:34:27,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 727 states. [2019-10-14 23:34:27,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 853 transitions. [2019-10-14 23:34:27,394 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 853 transitions. Word has length 99 [2019-10-14 23:34:27,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:34:27,396 INFO L462 AbstractCegarLoop]: Abstraction has 727 states and 853 transitions. [2019-10-14 23:34:27,396 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-14 23:34:27,396 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 853 transitions. [2019-10-14 23:34:27,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-10-14 23:34:27,398 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:34:27,398 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] [2019-10-14 23:34:27,399 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:34:27,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:34:27,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1176915630, now seen corresponding path program 1 times [2019-10-14 23:34:27,399 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:34:27,399 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099334145] [2019-10-14 23:34:27,400 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:27,400 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:27,400 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:34:27,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:27,725 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:34:27,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:27,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:27,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:27,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:27,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:27,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:27,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:27,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:27,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:27,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:27,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:27,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:27,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:27,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:27,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:27,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:28,000 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-14 23:34:28,001 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099334145] [2019-10-14 23:34:28,001 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991184046] [2019-10-14 23:34:28,001 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 [2019-10-14 23:34:28,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:28,221 INFO L256 TraceCheckSpWp]: Trace formula consists of 781 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-14 23:34:28,243 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:34:28,478 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:34:28,478 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:34:28,478 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17] total 22 [2019-10-14 23:34:28,479 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966117606] [2019-10-14 23:34:28,479 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:34:28,479 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:34:28,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:34:28,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2019-10-14 23:34:28,480 INFO L87 Difference]: Start difference. First operand 727 states and 853 transitions. Second operand 8 states. [2019-10-14 23:34:29,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:34:29,021 INFO L93 Difference]: Finished difference Result 1396 states and 1648 transitions. [2019-10-14 23:34:29,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-14 23:34:29,022 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 103 [2019-10-14 23:34:29,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:34:29,026 INFO L225 Difference]: With dead ends: 1396 [2019-10-14 23:34:29,027 INFO L226 Difference]: Without dead ends: 693 [2019-10-14 23:34:29,029 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 128 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2019-10-14 23:34:29,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2019-10-14 23:34:29,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 693. [2019-10-14 23:34:29,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2019-10-14 23:34:29,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 799 transitions. [2019-10-14 23:34:29,222 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 799 transitions. Word has length 103 [2019-10-14 23:34:29,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:34:29,223 INFO L462 AbstractCegarLoop]: Abstraction has 693 states and 799 transitions. [2019-10-14 23:34:29,223 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:34:29,223 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 799 transitions. [2019-10-14 23:34:29,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-14 23:34:29,227 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:34:29,227 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:34:29,435 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:34:29,435 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:34:29,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:34:29,436 INFO L82 PathProgramCache]: Analyzing trace with hash 2006054760, now seen corresponding path program 1 times [2019-10-14 23:34:29,436 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:34:29,436 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876732671] [2019-10-14 23:34:29,437 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:29,437 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:34:29,437 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:34:29,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:29,785 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:34:29,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:29,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:29,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:29,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:29,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:29,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:29,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:29,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:29,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:29,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:29,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:29,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:29,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:29,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:29,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:29,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:29,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:29,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:29,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:30,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:30,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:30,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:30,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:30,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:30,109 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-14 23:34:30,110 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876732671] [2019-10-14 23:34:30,110 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347856359] [2019-10-14 23:34:30,110 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:34:30,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:34:30,311 INFO L256 TraceCheckSpWp]: Trace formula consists of 908 conjuncts, 15 conjunts are in the unsatisfiable core [2019-10-14 23:34:30,318 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:34:30,491 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:34:30,492 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:34:30,492 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14] total 19 [2019-10-14 23:34:30,492 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018509666] [2019-10-14 23:34:30,494 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:34:30,494 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:34:30,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:34:30,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2019-10-14 23:34:30,495 INFO L87 Difference]: Start difference. First operand 693 states and 799 transitions. Second operand 9 states.