java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product61.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:37:15,959 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:37:15,962 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:37:15,981 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:37:15,982 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:37:15,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:37:15,986 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:37:15,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:37:15,999 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:37:16,002 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:37:16,004 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:37:16,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:37:16,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:37:16,007 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:37:16,010 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:37:16,011 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:37:16,012 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:37:16,013 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:37:16,015 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:37:16,016 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:37:16,018 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:37:16,019 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:37:16,020 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:37:16,020 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:37:16,022 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:37:16,022 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:37:16,023 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:37:16,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:37:16,024 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:37:16,025 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:37:16,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:37:16,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:37:16,026 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:37:16,027 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:37:16,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:37:16,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:37:16,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:37:16,029 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:37:16,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:37:16,030 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:37:16,031 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:37:16,032 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 19:37:16,045 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:37:16,046 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:37:16,047 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:37:16,047 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:37:16,047 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:37:16,047 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:37:16,048 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:37:16,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:37:16,048 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:37:16,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:37:16,048 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:37:16,048 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:37:16,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:37:16,049 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:37:16,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:37:16,049 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:37:16,049 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:37:16,050 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:37:16,050 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:37:16,050 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:37:16,050 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:37:16,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:37:16,051 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:37:16,051 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:37:16,051 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:37:16,051 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:37:16,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:37:16,052 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:37:16,052 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:37:16,335 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:37:16,357 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:37:16,362 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:37:16,363 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:37:16,364 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:37:16,364 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product61.cil.c [2019-10-13 19:37:16,440 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a86ecfa79/5442cdff925a4084923c4d00253bbd2a/FLAGc8a0f4402 [2019-10-13 19:37:17,010 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:37:17,011 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product61.cil.c [2019-10-13 19:37:17,025 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a86ecfa79/5442cdff925a4084923c4d00253bbd2a/FLAGc8a0f4402 [2019-10-13 19:37:17,299 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a86ecfa79/5442cdff925a4084923c4d00253bbd2a [2019-10-13 19:37:17,307 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:37:17,308 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:37:17,309 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:37:17,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:37:17,312 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:37:17,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:37:17" (1/1) ... [2019-10-13 19:37:17,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25a9dc7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:17, skipping insertion in model container [2019-10-13 19:37:17,317 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:37:17" (1/1) ... [2019-10-13 19:37:17,324 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:37:17,398 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:37:17,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:37:17,911 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:37:18,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:37:18,086 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:37:18,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:18 WrapperNode [2019-10-13 19:37:18,087 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:37:18,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:37:18,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:37:18,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:37:18,098 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:18" (1/1) ... [2019-10-13 19:37:18,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:18" (1/1) ... [2019-10-13 19:37:18,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:18" (1/1) ... [2019-10-13 19:37:18,118 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:18" (1/1) ... [2019-10-13 19:37:18,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:18" (1/1) ... [2019-10-13 19:37:18,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:18" (1/1) ... [2019-10-13 19:37:18,181 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:18" (1/1) ... [2019-10-13 19:37:18,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:37:18,200 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:37:18,200 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:37:18,201 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:37:18,202 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:37:18,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:37:18,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:37:18,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 19:37:18,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-13 19:37:18,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-13 19:37:18,275 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 19:37:18,275 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 19:37:18,276 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 19:37:18,277 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 19:37:18,277 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:37:18,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 19:37:18,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 19:37:18,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 19:37:18,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 19:37:18,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 19:37:18,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 19:37:18,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 19:37:18,283 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 19:37:18,283 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 19:37:18,283 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 19:37:18,283 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 19:37:18,283 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 19:37:18,284 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 19:37:18,284 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 19:37:18,284 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 19:37:18,284 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 19:37:18,284 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 19:37:18,285 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 19:37:18,285 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 19:37:18,285 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 19:37:18,285 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 19:37:18,286 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 19:37:18,286 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 19:37:18,286 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 19:37:18,286 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 19:37:18,287 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 19:37:18,287 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 19:37:18,287 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 19:37:18,287 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 19:37:18,287 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 19:37:18,288 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 19:37:18,288 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 19:37:18,288 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 19:37:18,289 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:37:18,289 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:37:18,289 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 19:37:18,289 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 19:37:18,290 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 19:37:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 19:37:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-13 19:37:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-13 19:37:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 19:37:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 19:37:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 19:37:18,291 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 19:37:18,292 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 19:37:18,292 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 19:37:18,292 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 19:37:18,292 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 19:37:18,292 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 19:37:18,292 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 19:37:18,292 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 19:37:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 19:37:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:37:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 19:37:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 19:37:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 19:37:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 19:37:18,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 19:37:18,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 19:37:18,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:37:18,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 19:37:18,295 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 19:37:18,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:37:18,296 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 19:37:18,296 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 19:37:18,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:37:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 19:37:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 19:37:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:37:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 19:37:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 19:37:18,298 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 19:37:18,298 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 19:37:18,298 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 19:37:18,298 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 19:37:18,299 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 19:37:18,300 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 19:37:18,300 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 19:37:18,300 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 19:37:18,301 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 19:37:18,301 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 19:37:18,301 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 19:37:18,301 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 19:37:18,301 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 19:37:18,302 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 19:37:18,302 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 19:37:18,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:37:18,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:37:18,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:37:19,578 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:37:19,579 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 19:37:19,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:37:19 BoogieIcfgContainer [2019-10-13 19:37:19,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:37:19,585 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:37:19,585 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:37:19,588 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:37:19,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:37:17" (1/3) ... [2019-10-13 19:37:19,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d82d0af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:37:19, skipping insertion in model container [2019-10-13 19:37:19,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:18" (2/3) ... [2019-10-13 19:37:19,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d82d0af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:37:19, skipping insertion in model container [2019-10-13 19:37:19,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:37:19" (3/3) ... [2019-10-13 19:37:19,593 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product61.cil.c [2019-10-13 19:37:19,604 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:37:19,614 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:37:19,627 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:37:19,662 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:37:19,662 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:37:19,662 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:37:19,663 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:37:19,663 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:37:19,663 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:37:19,663 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:37:19,664 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:37:19,692 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2019-10-13 19:37:19,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-13 19:37:19,709 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:19,710 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:37:19,714 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:19,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:19,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1299073538, now seen corresponding path program 1 times [2019-10-13 19:37:19,732 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:19,732 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379498404] [2019-10-13 19:37:19,733 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:19,733 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:19,733 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:19,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:20,459 WARN L191 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:20,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:20,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:20,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:20,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:20,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:20,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:20,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:20,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:20,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:37:20,549 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379498404] [2019-10-13 19:37:20,551 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:20,551 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 19:37:20,553 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373543874] [2019-10-13 19:37:20,561 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:37:20,561 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:20,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:37:20,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:37:20,577 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 4 states. [2019-10-13 19:37:21,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:21,876 INFO L93 Difference]: Finished difference Result 344 states and 448 transitions. [2019-10-13 19:37:21,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 19:37:21,878 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2019-10-13 19:37:21,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:21,893 INFO L225 Difference]: With dead ends: 344 [2019-10-13 19:37:21,893 INFO L226 Difference]: Without dead ends: 190 [2019-10-13 19:37:21,898 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:37:21,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2019-10-13 19:37:21,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 155. [2019-10-13 19:37:21,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2019-10-13 19:37:21,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 185 transitions. [2019-10-13 19:37:21,997 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 185 transitions. Word has length 51 [2019-10-13 19:37:21,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:21,997 INFO L462 AbstractCegarLoop]: Abstraction has 155 states and 185 transitions. [2019-10-13 19:37:21,998 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:37:21,998 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 185 transitions. [2019-10-13 19:37:22,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-13 19:37:22,002 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:22,002 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] [2019-10-13 19:37:22,002 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:22,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:22,003 INFO L82 PathProgramCache]: Analyzing trace with hash -155172335, now seen corresponding path program 1 times [2019-10-13 19:37:22,003 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:22,003 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593001248] [2019-10-13 19:37:22,003 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:22,004 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:22,004 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:22,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:22,428 WARN L191 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:22,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:22,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:22,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:22,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:22,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:22,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:22,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:22,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:22,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:37:22,477 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593001248] [2019-10-13 19:37:22,477 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:22,477 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 19:37:22,477 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832287020] [2019-10-13 19:37:22,479 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 19:37:22,479 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:22,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 19:37:22,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:37:22,480 INFO L87 Difference]: Start difference. First operand 155 states and 185 transitions. Second operand 5 states. [2019-10-13 19:37:22,991 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:37:24,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:24,088 INFO L93 Difference]: Finished difference Result 289 states and 359 transitions. [2019-10-13 19:37:24,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 19:37:24,091 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2019-10-13 19:37:24,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:24,094 INFO L225 Difference]: With dead ends: 289 [2019-10-13 19:37:24,094 INFO L226 Difference]: Without dead ends: 180 [2019-10-13 19:37:24,096 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:37:24,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2019-10-13 19:37:24,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 146. [2019-10-13 19:37:24,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2019-10-13 19:37:24,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 173 transitions. [2019-10-13 19:37:24,136 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 173 transitions. Word has length 52 [2019-10-13 19:37:24,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:24,137 INFO L462 AbstractCegarLoop]: Abstraction has 146 states and 173 transitions. [2019-10-13 19:37:24,137 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 19:37:24,137 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 173 transitions. [2019-10-13 19:37:24,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-13 19:37:24,139 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:24,139 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] [2019-10-13 19:37:24,140 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:24,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:24,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1504957008, now seen corresponding path program 1 times [2019-10-13 19:37:24,140 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:24,141 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028812190] [2019-10-13 19:37:24,141 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:24,141 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:24,141 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:24,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:24,488 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:24,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:24,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:24,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:24,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:24,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:24,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:24,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:24,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:37:24,630 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028812190] [2019-10-13 19:37:24,630 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:24,631 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:37:24,631 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633224352] [2019-10-13 19:37:24,632 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:37:24,632 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:24,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:37:24,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:37:24,633 INFO L87 Difference]: Start difference. First operand 146 states and 173 transitions. Second operand 9 states. [2019-10-13 19:37:25,152 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:37:25,542 WARN L191 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-13 19:37:25,818 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:37:26,090 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:37:27,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:27,732 INFO L93 Difference]: Finished difference Result 298 states and 374 transitions. [2019-10-13 19:37:27,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 19:37:27,733 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 56 [2019-10-13 19:37:27,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:27,736 INFO L225 Difference]: With dead ends: 298 [2019-10-13 19:37:27,736 INFO L226 Difference]: Without dead ends: 180 [2019-10-13 19:37:27,738 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2019-10-13 19:37:27,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2019-10-13 19:37:27,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 146. [2019-10-13 19:37:27,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2019-10-13 19:37:27,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 172 transitions. [2019-10-13 19:37:27,788 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 172 transitions. Word has length 56 [2019-10-13 19:37:27,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:27,789 INFO L462 AbstractCegarLoop]: Abstraction has 146 states and 172 transitions. [2019-10-13 19:37:27,789 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:37:27,789 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 172 transitions. [2019-10-13 19:37:27,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-10-13 19:37:27,792 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:27,792 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] [2019-10-13 19:37:27,793 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:27,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:27,793 INFO L82 PathProgramCache]: Analyzing trace with hash -775636071, now seen corresponding path program 1 times [2019-10-13 19:37:27,793 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:27,794 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811959668] [2019-10-13 19:37:27,794 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:27,794 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:27,794 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:27,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:28,104 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:28,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:28,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:28,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:28,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:28,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:28,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:28,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:28,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:28,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:28,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:28,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:28,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:37:28,204 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811959668] [2019-10-13 19:37:28,204 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:28,205 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 19:37:28,205 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924383505] [2019-10-13 19:37:28,205 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 19:37:28,206 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:28,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 19:37:28,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:37:28,206 INFO L87 Difference]: Start difference. First operand 146 states and 172 transitions. Second operand 7 states. [2019-10-13 19:37:28,600 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:37:29,935 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:37:30,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:30,986 INFO L93 Difference]: Finished difference Result 403 states and 508 transitions. [2019-10-13 19:37:30,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 19:37:30,987 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2019-10-13 19:37:30,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:30,991 INFO L225 Difference]: With dead ends: 403 [2019-10-13 19:37:30,991 INFO L226 Difference]: Without dead ends: 285 [2019-10-13 19:37:30,992 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2019-10-13 19:37:30,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2019-10-13 19:37:31,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 239. [2019-10-13 19:37:31,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2019-10-13 19:37:31,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 274 transitions. [2019-10-13 19:37:31,049 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 274 transitions. Word has length 74 [2019-10-13 19:37:31,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:31,050 INFO L462 AbstractCegarLoop]: Abstraction has 239 states and 274 transitions. [2019-10-13 19:37:31,050 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 19:37:31,050 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 274 transitions. [2019-10-13 19:37:31,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-13 19:37:31,053 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:31,053 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:37:31,054 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:31,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:31,054 INFO L82 PathProgramCache]: Analyzing trace with hash 2094752105, now seen corresponding path program 1 times [2019-10-13 19:37:31,054 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:31,055 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301506891] [2019-10-13 19:37:31,055 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:31,055 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:31,055 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:31,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:31,376 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:31,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:31,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:31,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:31,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:31,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:31,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:31,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:31,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:31,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:31,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:31,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:31,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:37:31,510 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301506891] [2019-10-13 19:37:31,510 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:31,511 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:37:31,511 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457567131] [2019-10-13 19:37:31,511 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:37:31,512 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:31,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:37:31,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:37:31,512 INFO L87 Difference]: Start difference. First operand 239 states and 274 transitions. Second operand 9 states. [2019-10-13 19:37:32,105 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:37:33,275 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:37:33,672 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:37:34,452 WARN L191 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:37:34,763 WARN L191 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:37:36,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:36,306 INFO L93 Difference]: Finished difference Result 708 states and 878 transitions. [2019-10-13 19:37:36,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-13 19:37:36,307 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2019-10-13 19:37:36,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:36,312 INFO L225 Difference]: With dead ends: 708 [2019-10-13 19:37:36,312 INFO L226 Difference]: Without dead ends: 497 [2019-10-13 19:37:36,314 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2019-10-13 19:37:36,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2019-10-13 19:37:36,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 426. [2019-10-13 19:37:36,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2019-10-13 19:37:36,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 488 transitions. [2019-10-13 19:37:36,399 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 488 transitions. Word has length 88 [2019-10-13 19:37:36,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:36,400 INFO L462 AbstractCegarLoop]: Abstraction has 426 states and 488 transitions. [2019-10-13 19:37:36,400 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:37:36,400 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 488 transitions. [2019-10-13 19:37:36,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-10-13 19:37:36,401 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:36,402 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:37:36,402 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:36,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:36,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1169136517, now seen corresponding path program 1 times [2019-10-13 19:37:36,403 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:36,403 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834085754] [2019-10-13 19:37:36,403 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:36,403 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:36,403 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:36,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:36,729 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:36,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:36,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:36,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:36,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:36,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:36,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:36,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:36,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:36,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:36,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:36,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:36,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:36,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:36,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:36,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:37:36,856 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834085754] [2019-10-13 19:37:36,856 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:36,856 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 19:37:36,856 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487768402] [2019-10-13 19:37:36,857 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 19:37:36,857 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:36,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 19:37:36,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:37:36,858 INFO L87 Difference]: Start difference. First operand 426 states and 488 transitions. Second operand 10 states. [2019-10-13 19:37:37,446 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:37:38,863 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:37:40,125 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:37:40,410 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:37:40,691 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:37:41,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:41,078 INFO L93 Difference]: Finished difference Result 930 states and 1135 transitions. [2019-10-13 19:37:41,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-13 19:37:41,078 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 92 [2019-10-13 19:37:41,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:41,083 INFO L225 Difference]: With dead ends: 930 [2019-10-13 19:37:41,083 INFO L226 Difference]: Without dead ends: 532 [2019-10-13 19:37:41,085 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=194, Invalid=508, Unknown=0, NotChecked=0, Total=702 [2019-10-13 19:37:41,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2019-10-13 19:37:41,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 425. [2019-10-13 19:37:41,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 425 states. [2019-10-13 19:37:41,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 485 transitions. [2019-10-13 19:37:41,170 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 485 transitions. Word has length 92 [2019-10-13 19:37:41,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:41,171 INFO L462 AbstractCegarLoop]: Abstraction has 425 states and 485 transitions. [2019-10-13 19:37:41,171 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 19:37:41,171 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 485 transitions. [2019-10-13 19:37:41,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-13 19:37:41,173 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:41,173 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:37:41,174 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:41,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:41,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1253770304, now seen corresponding path program 1 times [2019-10-13 19:37:41,174 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:41,175 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384842239] [2019-10-13 19:37:41,175 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:41,175 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:41,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:41,440 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:41,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:41,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:41,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:41,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:41,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:41,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:41,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:41,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:41,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:41,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:41,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:41,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:41,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:41,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:41,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:41,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:41,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:41,608 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:37:41,609 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384842239] [2019-10-13 19:37:41,609 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:41,609 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 19:37:41,609 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372727201] [2019-10-13 19:37:41,610 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 19:37:41,610 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:41,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 19:37:41,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:37:41,611 INFO L87 Difference]: Start difference. First operand 425 states and 485 transitions. Second operand 10 states. [2019-10-13 19:37:42,811 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:37:43,103 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2019-10-13 19:37:43,375 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:37:43,639 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:37:45,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:45,078 INFO L93 Difference]: Finished difference Result 937 states and 1168 transitions. [2019-10-13 19:37:45,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 19:37:45,078 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 108 [2019-10-13 19:37:45,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:45,082 INFO L225 Difference]: With dead ends: 937 [2019-10-13 19:37:45,082 INFO L226 Difference]: Without dead ends: 540 [2019-10-13 19:37:45,084 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2019-10-13 19:37:45,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2019-10-13 19:37:45,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 435. [2019-10-13 19:37:45,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 435 states. [2019-10-13 19:37:45,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 495 transitions. [2019-10-13 19:37:45,182 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 495 transitions. Word has length 108 [2019-10-13 19:37:45,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:45,183 INFO L462 AbstractCegarLoop]: Abstraction has 435 states and 495 transitions. [2019-10-13 19:37:45,183 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 19:37:45,183 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 495 transitions. [2019-10-13 19:37:45,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-13 19:37:45,188 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:45,188 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:37:45,188 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:45,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:45,189 INFO L82 PathProgramCache]: Analyzing trace with hash 685391742, now seen corresponding path program 1 times [2019-10-13 19:37:45,189 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:45,189 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954275401] [2019-10-13 19:37:45,189 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:45,190 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:45,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:45,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:45,482 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:45,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:45,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:45,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:45,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:45,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:45,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:45,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:45,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:45,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:45,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:45,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:45,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:45,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:45,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:45,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:45,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:45,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:45,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:45,675 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:37:45,676 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954275401] [2019-10-13 19:37:45,676 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:45,676 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 19:37:45,677 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062176361] [2019-10-13 19:37:45,679 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 19:37:45,683 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:45,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 19:37:45,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:37:45,684 INFO L87 Difference]: Start difference. First operand 435 states and 495 transitions. Second operand 12 states. [2019-10-13 19:37:46,417 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:37:46,697 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:37:46,983 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:37:47,724 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:37:48,011 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:37:48,287 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:37:49,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:49,965 INFO L93 Difference]: Finished difference Result 957 states and 1190 transitions. [2019-10-13 19:37:49,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 19:37:49,965 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 108 [2019-10-13 19:37:49,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:49,971 INFO L225 Difference]: With dead ends: 957 [2019-10-13 19:37:49,971 INFO L226 Difference]: Without dead ends: 550 [2019-10-13 19:37:49,973 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2019-10-13 19:37:49,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2019-10-13 19:37:50,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 443. [2019-10-13 19:37:50,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2019-10-13 19:37:50,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 503 transitions. [2019-10-13 19:37:50,064 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 503 transitions. Word has length 108 [2019-10-13 19:37:50,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:50,065 INFO L462 AbstractCegarLoop]: Abstraction has 443 states and 503 transitions. [2019-10-13 19:37:50,065 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 19:37:50,065 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 503 transitions. [2019-10-13 19:37:50,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-13 19:37:50,068 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:50,068 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:37:50,068 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:50,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:50,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1454561757, now seen corresponding path program 1 times [2019-10-13 19:37:50,069 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:50,069 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073913610] [2019-10-13 19:37:50,069 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:50,069 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:50,070 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:50,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:50,362 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:50,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:50,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:50,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:50,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:50,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:50,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:50,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:50,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:50,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:50,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:50,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:50,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:50,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:50,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:50,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:50,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:50,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:50,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:50,598 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:37:50,599 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073913610] [2019-10-13 19:37:50,599 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:37:50,599 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 19:37:50,600 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533310567] [2019-10-13 19:37:50,600 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 19:37:50,601 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:37:50,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 19:37:50,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:37:50,602 INFO L87 Difference]: Start difference. First operand 443 states and 503 transitions. Second operand 8 states. [2019-10-13 19:37:51,105 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:37:51,688 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:37:54,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:37:54,271 INFO L93 Difference]: Finished difference Result 1296 states and 1667 transitions. [2019-10-13 19:37:54,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-13 19:37:54,271 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 108 [2019-10-13 19:37:54,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:37:54,279 INFO L225 Difference]: With dead ends: 1296 [2019-10-13 19:37:54,280 INFO L226 Difference]: Without dead ends: 881 [2019-10-13 19:37:54,281 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 44 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2019-10-13 19:37:54,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2019-10-13 19:37:54,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 749. [2019-10-13 19:37:54,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 749 states. [2019-10-13 19:37:54,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 881 transitions. [2019-10-13 19:37:54,388 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 881 transitions. Word has length 108 [2019-10-13 19:37:54,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:37:54,388 INFO L462 AbstractCegarLoop]: Abstraction has 749 states and 881 transitions. [2019-10-13 19:37:54,388 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 19:37:54,389 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 881 transitions. [2019-10-13 19:37:54,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-13 19:37:54,390 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:37:54,391 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:37:54,391 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:37:54,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:37:54,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1438503063, now seen corresponding path program 1 times [2019-10-13 19:37:54,392 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:37:54,392 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073210428] [2019-10-13 19:37:54,392 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:54,392 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:37:54,392 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:37:54,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,673 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:37:54,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:54,947 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 19:37:54,948 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073210428] [2019-10-13 19:37:54,948 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111584933] [2019-10-13 19:37:54,948 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:37:55,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:37:55,137 INFO L256 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-13 19:37:55,153 INFO L279 TraceCheckSpWp]: Computing forward predicates...