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_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:41:11,338 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:41:11,341 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:41:11,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:41:11,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:41:11,355 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:41:11,357 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:41:11,358 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:41:11,360 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:41:11,361 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:41:11,362 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:41:11,363 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:41:11,363 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:41:11,364 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:41:11,365 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:41:11,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:41:11,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:41:11,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:41:11,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:41:11,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:41:11,377 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:41:11,378 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:41:11,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:41:11,382 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:41:11,386 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:41:11,387 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:41:11,387 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:41:11,388 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:41:11,389 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:41:11,392 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:41:11,392 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:41:11,393 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:41:11,395 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:41:11,396 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:41:11,397 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:41:11,397 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:41:11,398 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:41:11,398 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:41:11,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:41:11,401 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:41:11,402 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:41:11,406 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 23:41:11,419 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:41:11,420 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:41:11,421 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:41:11,421 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:41:11,422 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:41:11,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:41:11,422 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:41:11,422 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:41:11,422 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:41:11,423 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:41:11,423 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:41:11,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:41:11,423 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:41:11,423 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:41:11,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:41:11,424 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:41:11,424 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:41:11,424 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:41:11,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:41:11,425 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:41:11,425 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:41:11,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:41:11,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:41:11,426 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:41:11,426 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:41:11,426 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:41:11,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:41:11,427 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:41:11,427 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:41:11,753 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:41:11,771 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:41:11,774 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:41:11,775 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:41:11,776 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:41:11,776 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product55.cil.c [2019-10-14 23:41:11,848 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6848d6ab9/5025be3254aa47939765bd532456922d/FLAG4365e59f9 [2019-10-14 23:41:12,362 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:41:12,362 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product55.cil.c [2019-10-14 23:41:12,382 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6848d6ab9/5025be3254aa47939765bd532456922d/FLAG4365e59f9 [2019-10-14 23:41:12,668 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6848d6ab9/5025be3254aa47939765bd532456922d [2019-10-14 23:41:12,677 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:41:12,678 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:41:12,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:41:12,680 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:41:12,683 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:41:12,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:41:12" (1/1) ... [2019-10-14 23:41:12,687 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e60383f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:12, skipping insertion in model container [2019-10-14 23:41:12,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:41:12" (1/1) ... [2019-10-14 23:41:12,694 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:41:12,756 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:41:13,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:41:13,177 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:41:13,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:41:13,313 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:41:13,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:13 WrapperNode [2019-10-14 23:41:13,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:41:13,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:41:13,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:41:13,315 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:41:13,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:13" (1/1) ... [2019-10-14 23:41:13,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:13" (1/1) ... [2019-10-14 23:41:13,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:13" (1/1) ... [2019-10-14 23:41:13,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:13" (1/1) ... [2019-10-14 23:41:13,407 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:13" (1/1) ... [2019-10-14 23:41:13,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:13" (1/1) ... [2019-10-14 23:41:13,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:13" (1/1) ... [2019-10-14 23:41:13,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:41:13,454 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:41:13,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:41:13,454 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:41:13,458 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:41:13,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:41:13,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:41:13,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-14 23:41:13,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-14 23:41:13,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-14 23:41:13,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-14 23:41:13,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-14 23:41:13,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-14 23:41:13,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-14 23:41:13,515 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-14 23:41:13,515 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-14 23:41:13,516 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-14 23:41:13,516 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-14 23:41:13,516 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:41:13,516 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-14 23:41:13,516 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-14 23:41:13,516 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-14 23:41:13,517 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-14 23:41:13,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-14 23:41:13,517 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-14 23:41:13,517 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-14 23:41:13,517 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-14 23:41:13,518 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-14 23:41:13,518 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-14 23:41:13,518 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-14 23:41:13,518 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-14 23:41:13,518 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-14 23:41:13,518 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-14 23:41:13,519 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-14 23:41:13,519 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-14 23:41:13,519 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-14 23:41:13,519 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-14 23:41:13,519 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-14 23:41:13,519 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-14 23:41:13,520 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-14 23:41:13,520 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-14 23:41:13,520 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-14 23:41:13,520 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-14 23:41:13,520 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-14 23:41:13,520 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-14 23:41:13,521 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-14 23:41:13,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-14 23:41:13,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-14 23:41:13,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-14 23:41:13,521 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:41:13,521 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:41:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-14 23:41:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-14 23:41:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:41:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:41:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-14 23:41:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:41:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:41:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:41:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:41:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-14 23:41:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:41:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-14 23:41:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-14 23:41:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:41:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-14 23:41:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-14 23:41:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:41:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-14 23:41:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-14 23:41:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-14 23:41:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-14 23:41:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-14 23:41:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-14 23:41:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-14 23:41:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-14 23:41:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-14 23:41:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-14 23:41:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-14 23:41:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-14 23:41:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-14 23:41:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-14 23:41:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:41:13,527 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-14 23:41:13,527 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-14 23:41:13,527 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-14 23:41:13,527 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-14 23:41:13,527 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-14 23:41:13,527 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-14 23:41:13,528 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-14 23:41:13,528 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-14 23:41:13,528 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-14 23:41:13,528 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-14 23:41:13,528 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-14 23:41:13,528 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-14 23:41:13,529 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-14 23:41:13,529 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-14 23:41:13,529 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-14 23:41:13,529 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-14 23:41:13,529 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-14 23:41:13,529 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-14 23:41:13,529 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-14 23:41:13,530 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-14 23:41:13,530 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-14 23:41:13,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:41:13,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:41:13,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:41:14,695 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:41:14,696 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-14 23:41:14,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:41:14 BoogieIcfgContainer [2019-10-14 23:41:14,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:41:14,700 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:41:14,700 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:41:14,704 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:41:14,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:41:12" (1/3) ... [2019-10-14 23:41:14,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2faaa26f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:41:14, skipping insertion in model container [2019-10-14 23:41:14,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:13" (2/3) ... [2019-10-14 23:41:14,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2faaa26f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:41:14, skipping insertion in model container [2019-10-14 23:41:14,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:41:14" (3/3) ... [2019-10-14 23:41:14,710 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product55.cil.c [2019-10-14 23:41:14,721 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:41:14,734 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:41:14,746 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:41:14,788 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:41:14,788 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:41:14,788 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:41:14,789 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:41:14,789 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:41:14,789 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:41:14,789 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:41:14,790 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:41:14,816 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states. [2019-10-14 23:41:14,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-14 23:41:14,832 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:41:14,834 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:41:14,836 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:41:14,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:41:14,842 INFO L82 PathProgramCache]: Analyzing trace with hash -1039510468, now seen corresponding path program 1 times [2019-10-14 23:41:14,849 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:41:14,849 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074051202] [2019-10-14 23:41:14,850 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:14,850 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:14,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:41:15,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:15,531 WARN L191 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:41:15,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:15,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:15,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:15,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:15,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:15,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:15,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:15,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:15,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:15,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:15,658 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:41:15,659 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074051202] [2019-10-14 23:41:15,660 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:41:15,660 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 23:41:15,660 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553276971] [2019-10-14 23:41:15,665 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:41:15,666 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:41:15,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:41:15,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:41:15,683 INFO L87 Difference]: Start difference. First operand 205 states. Second operand 4 states. [2019-10-14 23:41:16,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:41:16,908 INFO L93 Difference]: Finished difference Result 356 states and 457 transitions. [2019-10-14 23:41:16,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:41:16,911 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2019-10-14 23:41:16,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:41:16,927 INFO L225 Difference]: With dead ends: 356 [2019-10-14 23:41:16,927 INFO L226 Difference]: Without dead ends: 195 [2019-10-14 23:41:16,933 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:41:16,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2019-10-14 23:41:17,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 162. [2019-10-14 23:41:17,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2019-10-14 23:41:17,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 192 transitions. [2019-10-14 23:41:17,040 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 192 transitions. Word has length 59 [2019-10-14 23:41:17,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:41:17,041 INFO L462 AbstractCegarLoop]: Abstraction has 162 states and 192 transitions. [2019-10-14 23:41:17,041 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:41:17,041 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 192 transitions. [2019-10-14 23:41:17,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-14 23:41:17,045 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:41:17,045 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:41:17,046 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:41:17,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:41:17,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1700142027, now seen corresponding path program 1 times [2019-10-14 23:41:17,046 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:41:17,047 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026210613] [2019-10-14 23:41:17,047 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:17,047 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:17,047 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:41:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:17,430 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:41:17,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:17,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:17,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:17,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:17,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:17,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:17,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:17,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:17,485 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:41:17,486 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026210613] [2019-10-14 23:41:17,486 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:41:17,486 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 23:41:17,486 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569254097] [2019-10-14 23:41:17,498 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 23:41:17,499 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:41:17,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 23:41:17,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:41:17,499 INFO L87 Difference]: Start difference. First operand 162 states and 192 transitions. Second operand 5 states. [2019-10-14 23:41:18,067 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:41:19,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:41:19,145 INFO L93 Difference]: Finished difference Result 295 states and 361 transitions. [2019-10-14 23:41:19,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 23:41:19,146 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2019-10-14 23:41:19,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:41:19,149 INFO L225 Difference]: With dead ends: 295 [2019-10-14 23:41:19,149 INFO L226 Difference]: Without dead ends: 185 [2019-10-14 23:41:19,151 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:41:19,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2019-10-14 23:41:19,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 153. [2019-10-14 23:41:19,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-10-14 23:41:19,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 180 transitions. [2019-10-14 23:41:19,195 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 180 transitions. Word has length 60 [2019-10-14 23:41:19,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:41:19,196 INFO L462 AbstractCegarLoop]: Abstraction has 153 states and 180 transitions. [2019-10-14 23:41:19,196 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 23:41:19,196 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 180 transitions. [2019-10-14 23:41:19,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-10-14 23:41:19,198 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:41:19,198 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] [2019-10-14 23:41:19,199 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:41:19,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:41:19,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1740397712, now seen corresponding path program 1 times [2019-10-14 23:41:19,200 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:41:19,200 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685690720] [2019-10-14 23:41:19,200 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:19,200 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:19,200 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:41:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:19,550 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:41:19,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:19,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:19,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:19,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:19,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:19,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:19,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:19,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:19,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:19,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:19,679 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:41:19,679 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685690720] [2019-10-14 23:41:19,680 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:41:19,680 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:41:19,680 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641291442] [2019-10-14 23:41:19,681 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:41:19,681 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:41:19,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:41:19,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:41:19,683 INFO L87 Difference]: Start difference. First operand 153 states and 180 transitions. Second operand 9 states. [2019-10-14 23:41:20,118 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:41:20,507 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-14 23:41:20,778 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:41:21,031 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:41:22,011 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:41:24,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:41:24,237 INFO L93 Difference]: Finished difference Result 508 states and 630 transitions. [2019-10-14 23:41:24,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-14 23:41:24,243 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2019-10-14 23:41:24,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:41:24,247 INFO L225 Difference]: With dead ends: 508 [2019-10-14 23:41:24,247 INFO L226 Difference]: Without dead ends: 383 [2019-10-14 23:41:24,249 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2019-10-14 23:41:24,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2019-10-14 23:41:24,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 326. [2019-10-14 23:41:24,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2019-10-14 23:41:24,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 396 transitions. [2019-10-14 23:41:24,343 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 396 transitions. Word has length 64 [2019-10-14 23:41:24,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:41:24,343 INFO L462 AbstractCegarLoop]: Abstraction has 326 states and 396 transitions. [2019-10-14 23:41:24,343 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:41:24,343 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 396 transitions. [2019-10-14 23:41:24,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-10-14 23:41:24,346 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:41:24,346 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:41:24,346 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:41:24,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:41:24,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1889366184, now seen corresponding path program 1 times [2019-10-14 23:41:24,347 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:41:24,347 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661964189] [2019-10-14 23:41:24,347 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:24,347 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:24,348 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:41:24,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:24,682 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:41:24,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:24,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:24,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:24,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:24,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:24,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:24,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:24,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:24,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:24,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:24,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:24,786 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-14 23:41:24,786 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661964189] [2019-10-14 23:41:24,786 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:41:24,787 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:41:24,787 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628005109] [2019-10-14 23:41:24,788 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:41:24,788 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:41:24,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:41:24,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:41:24,789 INFO L87 Difference]: Start difference. First operand 326 states and 396 transitions. Second operand 9 states. [2019-10-14 23:41:25,280 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:41:26,036 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:41:27,082 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:41:27,461 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:41:27,779 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:41:28,055 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:41:29,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:41:29,083 INFO L93 Difference]: Finished difference Result 827 states and 1076 transitions. [2019-10-14 23:41:29,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-14 23:41:29,084 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2019-10-14 23:41:29,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:41:29,089 INFO L225 Difference]: With dead ends: 827 [2019-10-14 23:41:29,089 INFO L226 Difference]: Without dead ends: 529 [2019-10-14 23:41:29,090 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2019-10-14 23:41:29,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2019-10-14 23:41:29,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 465. [2019-10-14 23:41:29,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 465 states. [2019-10-14 23:41:29,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 561 transitions. [2019-10-14 23:41:29,184 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 561 transitions. Word has length 70 [2019-10-14 23:41:29,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:41:29,184 INFO L462 AbstractCegarLoop]: Abstraction has 465 states and 561 transitions. [2019-10-14 23:41:29,185 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:41:29,185 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 561 transitions. [2019-10-14 23:41:29,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-14 23:41:29,187 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:41:29,187 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] [2019-10-14 23:41:29,187 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:41:29,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:41:29,188 INFO L82 PathProgramCache]: Analyzing trace with hash 1315837753, now seen corresponding path program 1 times [2019-10-14 23:41:29,188 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:41:29,188 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082617712] [2019-10-14 23:41:29,189 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:29,189 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:29,189 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:41:29,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:29,485 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:41:29,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:29,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:29,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:29,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:29,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:29,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:29,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:29,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:29,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:29,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:29,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:29,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:29,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:29,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:29,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:29,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:29,652 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:41:29,653 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082617712] [2019-10-14 23:41:29,653 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:41:29,653 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:41:29,654 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846266278] [2019-10-14 23:41:29,655 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:41:29,656 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:41:29,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:41:29,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:41:29,657 INFO L87 Difference]: Start difference. First operand 465 states and 561 transitions. Second operand 9 states. [2019-10-14 23:41:30,981 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:41:31,249 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-10-14 23:41:31,521 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:41:31,783 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:41:32,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:41:32,740 INFO L93 Difference]: Finished difference Result 988 states and 1255 transitions. [2019-10-14 23:41:32,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-14 23:41:32,741 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2019-10-14 23:41:32,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:41:32,745 INFO L225 Difference]: With dead ends: 988 [2019-10-14 23:41:32,745 INFO L226 Difference]: Without dead ends: 551 [2019-10-14 23:41:32,747 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2019-10-14 23:41:32,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2019-10-14 23:41:32,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 478. [2019-10-14 23:41:32,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2019-10-14 23:41:32,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 575 transitions. [2019-10-14 23:41:32,858 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 575 transitions. Word has length 97 [2019-10-14 23:41:32,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:41:32,862 INFO L462 AbstractCegarLoop]: Abstraction has 478 states and 575 transitions. [2019-10-14 23:41:32,864 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:41:32,864 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 575 transitions. [2019-10-14 23:41:32,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-14 23:41:32,876 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:41:32,877 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] [2019-10-14 23:41:32,877 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:41:32,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:41:32,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1243451195, now seen corresponding path program 1 times [2019-10-14 23:41:32,878 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:41:32,878 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993279552] [2019-10-14 23:41:32,878 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:32,879 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:32,879 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:41:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:33,194 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:41:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:33,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:33,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:33,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:33,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:33,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:33,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:33,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:33,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:33,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:33,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:33,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:33,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:33,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:33,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:33,332 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:41:33,332 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993279552] [2019-10-14 23:41:33,333 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:41:33,333 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-14 23:41:33,333 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613522810] [2019-10-14 23:41:33,333 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-14 23:41:33,334 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:41:33,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-14 23:41:33,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:41:33,334 INFO L87 Difference]: Start difference. First operand 478 states and 575 transitions. Second operand 11 states. [2019-10-14 23:41:33,861 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:41:34,124 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:41:34,391 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:41:35,381 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:41:35,674 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:41:35,969 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:41:37,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:41:37,172 INFO L93 Difference]: Finished difference Result 1015 states and 1308 transitions. [2019-10-14 23:41:37,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-14 23:41:37,173 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 97 [2019-10-14 23:41:37,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:41:37,178 INFO L225 Difference]: With dead ends: 1015 [2019-10-14 23:41:37,178 INFO L226 Difference]: Without dead ends: 565 [2019-10-14 23:41:37,180 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2019-10-14 23:41:37,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2019-10-14 23:41:37,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 486. [2019-10-14 23:41:37,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 486 states. [2019-10-14 23:41:37,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 583 transitions. [2019-10-14 23:41:37,273 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 583 transitions. Word has length 97 [2019-10-14 23:41:37,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:41:37,274 INFO L462 AbstractCegarLoop]: Abstraction has 486 states and 583 transitions. [2019-10-14 23:41:37,274 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-14 23:41:37,274 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 583 transitions. [2019-10-14 23:41:37,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-14 23:41:37,276 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:41:37,276 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] [2019-10-14 23:41:37,277 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:41:37,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:41:37,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1573216956, now seen corresponding path program 1 times [2019-10-14 23:41:37,277 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:41:37,278 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934702804] [2019-10-14 23:41:37,278 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:37,278 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:37,278 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:41:37,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:37,558 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:41:37,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:37,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:37,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:37,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:37,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:37,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:37,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:37,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:37,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:37,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:37,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:37,705 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:41:37,706 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934702804] [2019-10-14 23:41:37,706 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:41:37,707 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-14 23:41:37,707 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146394469] [2019-10-14 23:41:37,708 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-14 23:41:37,708 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:41:37,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-14 23:41:37,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:41:37,709 INFO L87 Difference]: Start difference. First operand 486 states and 583 transitions. Second operand 7 states. [2019-10-14 23:41:38,103 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:41:38,711 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:41:41,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:41:41,136 INFO L93 Difference]: Finished difference Result 1503 states and 1948 transitions. [2019-10-14 23:41:41,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-14 23:41:41,136 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 97 [2019-10-14 23:41:41,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:41:41,143 INFO L225 Difference]: With dead ends: 1503 [2019-10-14 23:41:41,144 INFO L226 Difference]: Without dead ends: 1045 [2019-10-14 23:41:41,147 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 39 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2019-10-14 23:41:41,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2019-10-14 23:41:41,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 971. [2019-10-14 23:41:41,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 971 states. [2019-10-14 23:41:41,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 971 states to 971 states and 1183 transitions. [2019-10-14 23:41:41,289 INFO L78 Accepts]: Start accepts. Automaton has 971 states and 1183 transitions. Word has length 97 [2019-10-14 23:41:41,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:41:41,290 INFO L462 AbstractCegarLoop]: Abstraction has 971 states and 1183 transitions. [2019-10-14 23:41:41,290 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-14 23:41:41,290 INFO L276 IsEmpty]: Start isEmpty. Operand 971 states and 1183 transitions. [2019-10-14 23:41:41,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-10-14 23:41:41,292 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:41:41,292 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] [2019-10-14 23:41:41,293 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:41:41,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:41:41,293 INFO L82 PathProgramCache]: Analyzing trace with hash 164101122, now seen corresponding path program 1 times [2019-10-14 23:41:41,293 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:41:41,293 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596312639] [2019-10-14 23:41:41,294 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:41,294 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:41,294 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:41:41,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,679 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:41:41,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,870 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:41:41,874 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596312639] [2019-10-14 23:41:41,875 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:41:41,875 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-14 23:41:41,875 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931035020] [2019-10-14 23:41:41,876 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-14 23:41:41,876 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:41:41,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-14 23:41:41,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:41:41,876 INFO L87 Difference]: Start difference. First operand 971 states and 1183 transitions. Second operand 12 states. [2019-10-14 23:41:42,620 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:41:43,379 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:41:44,212 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:41:44,592 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:41:44,877 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-10-14 23:41:45,195 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:41:45,512 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:41:47,850 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:41:48,222 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:41:49,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:41:49,001 INFO L93 Difference]: Finished difference Result 2749 states and 3568 transitions. [2019-10-14 23:41:49,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-10-14 23:41:49,002 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 101 [2019-10-14 23:41:49,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:41:49,015 INFO L225 Difference]: With dead ends: 2749 [2019-10-14 23:41:49,015 INFO L226 Difference]: Without dead ends: 2004 [2019-10-14 23:41:49,019 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2019-10-14 23:41:49,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2004 states. [2019-10-14 23:41:49,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2004 to 1704. [2019-10-14 23:41:49,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1704 states. [2019-10-14 23:41:49,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1704 states to 1704 states and 2058 transitions. [2019-10-14 23:41:49,377 INFO L78 Accepts]: Start accepts. Automaton has 1704 states and 2058 transitions. Word has length 101 [2019-10-14 23:41:49,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:41:49,380 INFO L462 AbstractCegarLoop]: Abstraction has 1704 states and 2058 transitions. [2019-10-14 23:41:49,380 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-14 23:41:49,380 INFO L276 IsEmpty]: Start isEmpty. Operand 1704 states and 2058 transitions. [2019-10-14 23:41:49,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-10-14 23:41:49,393 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:41:49,394 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-14 23:41:49,395 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:41:49,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:41:49,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1947078735, now seen corresponding path program 1 times [2019-10-14 23:41:49,396 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:41:49,396 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199998825] [2019-10-14 23:41:49,397 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:49,397 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:49,397 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:41:49,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:49,765 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:41:49,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:49,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:49,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:49,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:49,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:49,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:49,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:49,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:49,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:49,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:49,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:49,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:49,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:49,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:49,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:49,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:49,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:49,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:49,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:50,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:50,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:50,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:50,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:50,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:50,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:50,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:50,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:50,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:50,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:50,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:50,097 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 21 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-14 23:41:50,097 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199998825] [2019-10-14 23:41:50,097 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028718606] [2019-10-14 23:41:50,097 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:41:50,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:50,341 INFO L256 TraceCheckSpWp]: Trace formula consists of 976 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-14 23:41:50,356 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:41:50,581 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 29 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:41:50,581 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 23:41:50,581 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 7] total 20 [2019-10-14 23:41:50,582 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384444050] [2019-10-14 23:41:50,583 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-14 23:41:50,583 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:41:50,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-14 23:41:50,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2019-10-14 23:41:50,584 INFO L87 Difference]: Start difference. First operand 1704 states and 2058 transitions. Second operand 20 states.