/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 22:09:09,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 22:09:09,972 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 22:09:09,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 22:09:09,993 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 22:09:09,995 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 22:09:09,997 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 22:09:10,006 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 22:09:10,010 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 22:09:10,013 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 22:09:10,015 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 22:09:10,017 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 22:09:10,017 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 22:09:10,019 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 22:09:10,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 22:09:10,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 22:09:10,024 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 22:09:10,025 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 22:09:10,026 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 22:09:10,032 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 22:09:10,035 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 22:09:10,036 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 22:09:10,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 22:09:10,038 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 22:09:10,040 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 22:09:10,040 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 22:09:10,040 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 22:09:10,041 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 22:09:10,041 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 22:09:10,044 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 22:09:10,044 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 22:09:10,046 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 22:09:10,046 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 22:09:10,047 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 22:09:10,049 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 22:09:10,049 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 22:09:10,050 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 22:09:10,050 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 22:09:10,050 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 22:09:10,053 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 22:09:10,054 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 22:09:10,055 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-06 22:09:10,090 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 22:09:10,090 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 22:09:10,091 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 22:09:10,092 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 22:09:10,092 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 22:09:10,092 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 22:09:10,092 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 22:09:10,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 22:09:10,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 22:09:10,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 22:09:10,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 22:09:10,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 22:09:10,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 22:09:10,098 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 22:09:10,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 22:09:10,098 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 22:09:10,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 22:09:10,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 22:09:10,099 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 22:09:10,099 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 22:09:10,099 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 22:09:10,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:09:10,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 22:09:10,100 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 22:09:10,100 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 22:09:10,100 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 22:09:10,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 22:09:10,100 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 22:09:10,101 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 22:09:10,398 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 22:09:10,415 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 22:09:10,419 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 22:09:10,420 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 22:09:10,420 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 22:09:10,421 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_productSimulator.cil.c [2019-11-06 22:09:10,491 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b701fb9b/ea9c79dfb22c47619eabc875cc04f13c/FLAGc35cb076c [2019-11-06 22:09:11,003 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 22:09:11,004 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_productSimulator.cil.c [2019-11-06 22:09:11,023 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b701fb9b/ea9c79dfb22c47619eabc875cc04f13c/FLAGc35cb076c [2019-11-06 22:09:11,318 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b701fb9b/ea9c79dfb22c47619eabc875cc04f13c [2019-11-06 22:09:11,326 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 22:09:11,328 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 22:09:11,329 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 22:09:11,329 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 22:09:11,332 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 22:09:11,333 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:09:11" (1/1) ... [2019-11-06 22:09:11,336 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29be64f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:11, skipping insertion in model container [2019-11-06 22:09:11,336 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:09:11" (1/1) ... [2019-11-06 22:09:11,344 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 22:09:11,404 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 22:09:11,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:09:11,916 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 22:09:12,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:09:12,060 INFO L192 MainTranslator]: Completed translation [2019-11-06 22:09:12,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:12 WrapperNode [2019-11-06 22:09:12,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 22:09:12,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 22:09:12,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 22:09:12,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 22:09:12,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:12" (1/1) ... [2019-11-06 22:09:12,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:12" (1/1) ... [2019-11-06 22:09:12,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:12" (1/1) ... [2019-11-06 22:09:12,104 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:12" (1/1) ... [2019-11-06 22:09:12,146 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:12" (1/1) ... [2019-11-06 22:09:12,162 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:12" (1/1) ... [2019-11-06 22:09:12,169 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:12" (1/1) ... [2019-11-06 22:09:12,184 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 22:09:12,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 22:09:12,188 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 22:09:12,188 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 22:09:12,189 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:09:12,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 22:09:12,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 22:09:12,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-06 22:09:12,273 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-11-06 22:09:12,274 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-11-06 22:09:12,275 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-11-06 22:09:12,275 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-11-06 22:09:12,275 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-11-06 22:09:12,276 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-11-06 22:09:12,276 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-11-06 22:09:12,276 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-11-06 22:09:12,276 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-06 22:09:12,277 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-06 22:09:12,277 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-06 22:09:12,278 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-06 22:09:12,278 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 22:09:12,280 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-06 22:09:12,281 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-06 22:09:12,281 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-06 22:09:12,281 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-06 22:09:12,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-06 22:09:12,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-06 22:09:12,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-06 22:09:12,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-06 22:09:12,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-06 22:09:12,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-06 22:09:12,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-06 22:09:12,283 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-06 22:09:12,283 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-06 22:09:12,283 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__highWaterSensor [2019-11-06 22:09:12,283 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__highWaterSensor [2019-11-06 22:09:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__lowWaterSensor [2019-11-06 22:09:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__lowWaterSensor [2019-11-06 22:09:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__methaneAlarm [2019-11-06 22:09:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__methaneAlarm [2019-11-06 22:09:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-11-06 22:09:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__before__methaneQuery [2019-11-06 22:09:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__role__methaneQuery [2019-11-06 22:09:12,285 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-11-06 22:09:12,285 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-11-06 22:09:12,285 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-11-06 22:09:12,285 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-11-06 22:09:12,286 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-11-06 22:09:12,286 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-11-06 22:09:12,286 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-11-06 22:09:12,286 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-11-06 22:09:12,286 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-11-06 22:09:12,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-11-06 22:09:12,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-11-06 22:09:12,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-11-06 22:09:12,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 22:09:12,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 22:09:12,287 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-06 22:09:12,287 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-11-06 22:09:12,287 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-11-06 22:09:12,287 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-11-06 22:09:12,288 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-11-06 22:09:12,288 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-11-06 22:09:12,288 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-11-06 22:09:12,288 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-11-06 22:09:12,288 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-11-06 22:09:12,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 22:09:12,288 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-06 22:09:12,289 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-06 22:09:12,289 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-11-06 22:09:12,289 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-06 22:09:12,289 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-06 22:09:12,289 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-11-06 22:09:12,289 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-06 22:09:12,290 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-06 22:09:12,290 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-06 22:09:12,290 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-06 22:09:12,290 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-06 22:09:12,291 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 22:09:12,291 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-06 22:09:12,292 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-06 22:09:12,292 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-06 22:09:12,292 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 22:09:12,292 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 22:09:12,292 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-06 22:09:12,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 22:09:12,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 22:09:12,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 22:09:12,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 22:09:12,294 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-06 22:09:12,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 22:09:12,294 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-06 22:09:12,295 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-06 22:09:12,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 22:09:12,296 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-06 22:09:12,296 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-06 22:09:12,296 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-06 22:09:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-11-06 22:09:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-11-06 22:09:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-11-06 22:09:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-11-06 22:09:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-11-06 22:09:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-11-06 22:09:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-11-06 22:09:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-11-06 22:09:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__highWaterSensor [2019-11-06 22:09:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-11-06 22:09:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__highWaterSensor [2019-11-06 22:09:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__lowWaterSensor [2019-11-06 22:09:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-11-06 22:09:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__lowWaterSensor [2019-11-06 22:09:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__methaneAlarm [2019-11-06 22:09:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-11-06 22:09:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__methaneAlarm [2019-11-06 22:09:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__before__methaneQuery [2019-11-06 22:09:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__role__methaneQuery [2019-11-06 22:09:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 22:09:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-06 22:09:12,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 22:09:13,508 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 22:09:13,509 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-06 22:09:13,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:09:13 BoogieIcfgContainer [2019-11-06 22:09:13,512 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 22:09:13,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 22:09:13,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 22:09:13,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 22:09:13,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:09:11" (1/3) ... [2019-11-06 22:09:13,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1303691a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:09:13, skipping insertion in model container [2019-11-06 22:09:13,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:12" (2/3) ... [2019-11-06 22:09:13,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1303691a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:09:13, skipping insertion in model container [2019-11-06 22:09:13,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:09:13" (3/3) ... [2019-11-06 22:09:13,523 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_productSimulator.cil.c [2019-11-06 22:09:13,533 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 22:09:13,543 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 22:09:13,554 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 22:09:13,592 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 22:09:13,592 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 22:09:13,592 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 22:09:13,592 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 22:09:13,593 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 22:09:13,593 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 22:09:13,593 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 22:09:13,593 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 22:09:13,616 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2019-11-06 22:09:13,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-11-06 22:09:13,629 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:09:13,631 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 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] [2019-11-06 22:09:13,632 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:09:13,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:09:13,637 INFO L82 PathProgramCache]: Analyzing trace with hash -1762673243, now seen corresponding path program 1 times [2019-11-06 22:09:13,647 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:09:13,647 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591169419] [2019-11-06 22:09:13,648 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:09:13,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:14,429 WARN L191 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2019-11-06 22:09:14,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:14,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:14,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:14,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:14,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:14,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:14,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:14,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:14,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:14,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:14,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:14,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:14,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:14,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:14,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:14,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:14,590 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-11-06 22:09:14,590 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591169419] [2019-11-06 22:09:14,591 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:09:14,591 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-06 22:09:14,592 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73821551] [2019-11-06 22:09:14,597 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-06 22:09:14,598 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:09:14,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-06 22:09:14,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-06 22:09:14,614 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 6 states. [2019-11-06 22:09:16,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:09:16,979 INFO L93 Difference]: Finished difference Result 455 states and 593 transitions. [2019-11-06 22:09:16,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-06 22:09:16,981 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 91 [2019-11-06 22:09:16,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:09:17,006 INFO L225 Difference]: With dead ends: 455 [2019-11-06 22:09:17,006 INFO L226 Difference]: Without dead ends: 261 [2019-11-06 22:09:17,014 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2019-11-06 22:09:17,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2019-11-06 22:09:17,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 212. [2019-11-06 22:09:17,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2019-11-06 22:09:17,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 259 transitions. [2019-11-06 22:09:17,184 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 259 transitions. Word has length 91 [2019-11-06 22:09:17,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:09:17,187 INFO L462 AbstractCegarLoop]: Abstraction has 212 states and 259 transitions. [2019-11-06 22:09:17,188 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-06 22:09:17,188 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 259 transitions. [2019-11-06 22:09:17,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-11-06 22:09:17,204 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:09:17,205 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 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] [2019-11-06 22:09:17,205 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:09:17,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:09:17,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1489086657, now seen corresponding path program 1 times [2019-11-06 22:09:17,206 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:09:17,206 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382772619] [2019-11-06 22:09:17,207 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:09:17,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,719 WARN L191 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2019-11-06 22:09:17,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:17,877 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-11-06 22:09:17,878 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382772619] [2019-11-06 22:09:17,878 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:09:17,878 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-06 22:09:17,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224329884] [2019-11-06 22:09:17,891 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-06 22:09:17,897 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:09:17,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-06 22:09:17,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-06 22:09:17,898 INFO L87 Difference]: Start difference. First operand 212 states and 259 transitions. Second operand 7 states. [2019-11-06 22:09:18,667 WARN L191 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2019-11-06 22:09:20,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:09:20,709 INFO L93 Difference]: Finished difference Result 388 states and 489 transitions. [2019-11-06 22:09:20,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-06 22:09:20,712 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 92 [2019-11-06 22:09:20,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:09:20,715 INFO L225 Difference]: With dead ends: 388 [2019-11-06 22:09:20,716 INFO L226 Difference]: Without dead ends: 251 [2019-11-06 22:09:20,718 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182 [2019-11-06 22:09:20,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2019-11-06 22:09:20,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 203. [2019-11-06 22:09:20,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2019-11-06 22:09:20,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 247 transitions. [2019-11-06 22:09:20,769 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 247 transitions. Word has length 92 [2019-11-06 22:09:20,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:09:20,770 INFO L462 AbstractCegarLoop]: Abstraction has 203 states and 247 transitions. [2019-11-06 22:09:20,770 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-06 22:09:20,770 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 247 transitions. [2019-11-06 22:09:20,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-11-06 22:09:20,772 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:09:20,772 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 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] [2019-11-06 22:09:20,773 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:09:20,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:09:20,773 INFO L82 PathProgramCache]: Analyzing trace with hash -2081754782, now seen corresponding path program 1 times [2019-11-06 22:09:20,773 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:09:20,773 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729659914] [2019-11-06 22:09:20,774 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:09:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:21,230 WARN L191 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2019-11-06 22:09:21,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:21,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:21,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:21,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:21,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:21,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:21,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:21,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:21,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:21,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:21,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:21,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:21,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:21,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:21,432 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-11-06 22:09:21,432 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729659914] [2019-11-06 22:09:21,433 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:09:21,433 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-11-06 22:09:21,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018505251] [2019-11-06 22:09:21,434 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-06 22:09:21,434 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:09:21,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-06 22:09:21,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2019-11-06 22:09:21,435 INFO L87 Difference]: Start difference. First operand 203 states and 247 transitions. Second operand 13 states. [2019-11-06 22:09:21,988 WARN L191 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2019-11-06 22:09:22,762 WARN L191 SmtUtils]: Spent 638.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 214 [2019-11-06 22:09:23,627 WARN L191 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 216 [2019-11-06 22:09:24,881 WARN L191 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2019-11-06 22:09:25,688 WARN L191 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2019-11-06 22:09:30,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:09:30,032 INFO L93 Difference]: Finished difference Result 654 states and 830 transitions. [2019-11-06 22:09:30,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-11-06 22:09:30,032 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 97 [2019-11-06 22:09:30,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:09:30,038 INFO L225 Difference]: With dead ends: 654 [2019-11-06 22:09:30,038 INFO L226 Difference]: Without dead ends: 496 [2019-11-06 22:09:30,040 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=200, Invalid=612, Unknown=0, NotChecked=0, Total=812 [2019-11-06 22:09:30,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2019-11-06 22:09:30,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 407. [2019-11-06 22:09:30,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 407 states. [2019-11-06 22:09:30,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 508 transitions. [2019-11-06 22:09:30,137 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 508 transitions. Word has length 97 [2019-11-06 22:09:30,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:09:30,138 INFO L462 AbstractCegarLoop]: Abstraction has 407 states and 508 transitions. [2019-11-06 22:09:30,138 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-06 22:09:30,138 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 508 transitions. [2019-11-06 22:09:30,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-11-06 22:09:30,140 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:09:30,140 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 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] [2019-11-06 22:09:30,141 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:09:30,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:09:30,141 INFO L82 PathProgramCache]: Analyzing trace with hash -995246095, now seen corresponding path program 1 times [2019-11-06 22:09:30,141 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:09:30,142 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111740703] [2019-11-06 22:09:30,142 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:09:30,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:30,536 WARN L191 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2019-11-06 22:09:30,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:30,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:30,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:30,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:30,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:30,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:30,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:30,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:30,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:30,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:30,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:30,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:30,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:30,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:30,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:30,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:30,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:30,784 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-11-06 22:09:30,785 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111740703] [2019-11-06 22:09:30,785 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:09:30,786 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-06 22:09:30,786 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536572064] [2019-11-06 22:09:30,787 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-06 22:09:30,787 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:09:30,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-06 22:09:30,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-11-06 22:09:30,789 INFO L87 Difference]: Start difference. First operand 407 states and 508 transitions. Second operand 11 states. [2019-11-06 22:09:31,481 WARN L191 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2019-11-06 22:09:32,786 WARN L191 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2019-11-06 22:09:34,191 WARN L191 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2019-11-06 22:09:34,519 WARN L191 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2019-11-06 22:09:35,105 WARN L191 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2019-11-06 22:09:35,499 WARN L191 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2019-11-06 22:09:37,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:09:37,293 INFO L93 Difference]: Finished difference Result 1064 states and 1438 transitions. [2019-11-06 22:09:37,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-11-06 22:09:37,294 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 103 [2019-11-06 22:09:37,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:09:37,300 INFO L225 Difference]: With dead ends: 1064 [2019-11-06 22:09:37,300 INFO L226 Difference]: Without dead ends: 702 [2019-11-06 22:09:37,302 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=220, Invalid=536, Unknown=0, NotChecked=0, Total=756 [2019-11-06 22:09:37,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2019-11-06 22:09:37,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 628. [2019-11-06 22:09:37,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2019-11-06 22:09:37,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 795 transitions. [2019-11-06 22:09:37,430 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 795 transitions. Word has length 103 [2019-11-06 22:09:37,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:09:37,431 INFO L462 AbstractCegarLoop]: Abstraction has 628 states and 795 transitions. [2019-11-06 22:09:37,431 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-06 22:09:37,431 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 795 transitions. [2019-11-06 22:09:37,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-11-06 22:09:37,434 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:09:37,434 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:09:37,435 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:09:37,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:09:37,435 INFO L82 PathProgramCache]: Analyzing trace with hash -2077668553, now seen corresponding path program 1 times [2019-11-06 22:09:37,436 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:09:37,436 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582549177] [2019-11-06 22:09:37,436 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:09:37,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:37,780 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2019-11-06 22:09:37,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:37,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:37,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:37,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:37,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:37,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:37,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:37,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:37,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:37,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:37,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:37,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:37,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:37,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:37,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:37,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:37,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:37,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:37,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:37,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:37,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:37,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:38,054 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-11-06 22:09:38,055 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582549177] [2019-11-06 22:09:38,055 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:09:38,055 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-11-06 22:09:38,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761548826] [2019-11-06 22:09:38,057 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-06 22:09:38,057 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:09:38,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-06 22:09:38,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2019-11-06 22:09:38,058 INFO L87 Difference]: Start difference. First operand 628 states and 795 transitions. Second operand 14 states. [2019-11-06 22:09:38,858 WARN L191 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2019-11-06 22:09:39,447 WARN L191 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2019-11-06 22:09:41,035 WARN L191 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2019-11-06 22:09:41,452 WARN L191 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2019-11-06 22:09:41,831 WARN L191 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2019-11-06 22:09:43,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:09:43,818 INFO L93 Difference]: Finished difference Result 1314 states and 1796 transitions. [2019-11-06 22:09:43,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-06 22:09:43,824 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 136 [2019-11-06 22:09:43,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:09:43,832 INFO L225 Difference]: With dead ends: 1314 [2019-11-06 22:09:43,833 INFO L226 Difference]: Without dead ends: 731 [2019-11-06 22:09:43,835 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=176, Invalid=580, Unknown=0, NotChecked=0, Total=756 [2019-11-06 22:09:43,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2019-11-06 22:09:43,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 639. [2019-11-06 22:09:43,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 639 states. [2019-11-06 22:09:43,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 807 transitions. [2019-11-06 22:09:43,965 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 807 transitions. Word has length 136 [2019-11-06 22:09:43,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:09:43,966 INFO L462 AbstractCegarLoop]: Abstraction has 639 states and 807 transitions. [2019-11-06 22:09:43,966 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-06 22:09:43,966 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 807 transitions. [2019-11-06 22:09:43,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-11-06 22:09:43,969 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:09:43,969 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:09:43,969 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:09:43,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:09:43,969 INFO L82 PathProgramCache]: Analyzing trace with hash -232301387, now seen corresponding path program 1 times [2019-11-06 22:09:43,970 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:09:43,970 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470560409] [2019-11-06 22:09:43,970 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:09:43,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:44,308 WARN L191 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2019-11-06 22:09:44,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:44,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:44,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:44,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:44,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:44,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:44,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:44,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:44,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:44,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:44,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:44,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:44,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:44,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:44,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:44,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:44,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:44,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:44,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:44,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:44,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:44,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:44,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:44,526 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-11-06 22:09:44,526 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470560409] [2019-11-06 22:09:44,527 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:09:44,527 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-06 22:09:44,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223301449] [2019-11-06 22:09:44,528 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-06 22:09:44,528 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:09:44,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-06 22:09:44,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-11-06 22:09:44,529 INFO L87 Difference]: Start difference. First operand 639 states and 807 transitions. Second operand 11 states. [2019-11-06 22:09:46,545 WARN L191 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2019-11-06 22:09:46,879 WARN L191 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2019-11-06 22:09:47,221 WARN L191 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2019-11-06 22:09:47,534 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2019-11-06 22:09:49,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:09:49,176 INFO L93 Difference]: Finished difference Result 1333 states and 1816 transitions. [2019-11-06 22:09:49,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-06 22:09:49,177 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 136 [2019-11-06 22:09:49,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:09:49,185 INFO L225 Difference]: With dead ends: 1333 [2019-11-06 22:09:49,186 INFO L226 Difference]: Without dead ends: 739 [2019-11-06 22:09:49,189 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2019-11-06 22:09:49,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2019-11-06 22:09:49,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 649. [2019-11-06 22:09:49,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 649 states. [2019-11-06 22:09:49,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 817 transitions. [2019-11-06 22:09:49,359 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 817 transitions. Word has length 136 [2019-11-06 22:09:49,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:09:49,362 INFO L462 AbstractCegarLoop]: Abstraction has 649 states and 817 transitions. [2019-11-06 22:09:49,362 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-06 22:09:49,362 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 817 transitions. [2019-11-06 22:09:49,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-11-06 22:09:49,367 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:09:49,367 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:09:49,367 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:09:49,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:09:49,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1768602104, now seen corresponding path program 1 times [2019-11-06 22:09:49,368 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:09:49,369 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031898038] [2019-11-06 22:09:49,369 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:09:49,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:49,736 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2019-11-06 22:09:49,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:49,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:49,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:49,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:49,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:49,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:49,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:49,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:49,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:49,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:49,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:49,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:49,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:49,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:49,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:49,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:49,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:49,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:49,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:49,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:49,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:49,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:49,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:49,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:09:49,980 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-11-06 22:09:49,980 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031898038] [2019-11-06 22:09:49,981 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:09:49,981 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 22:09:49,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147909104] [2019-11-06 22:09:49,982 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 22:09:49,982 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:09:49,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 22:09:49,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:09:49,983 INFO L87 Difference]: Start difference. First operand 649 states and 817 transitions. Second operand 9 states. [2019-11-06 22:09:50,464 WARN L191 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 213