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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:57:45,423 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:57:45,426 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:57:45,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:57:45,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:57:45,449 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:57:45,451 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:57:45,464 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:57:45,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:57:45,466 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:57:45,467 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:57:45,468 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:57:45,469 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:57:45,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:57:45,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:57:45,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:57:45,473 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:57:45,474 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:57:45,475 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:57:45,477 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:57:45,479 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:57:45,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:57:45,481 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:57:45,482 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:57:45,485 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:57:45,486 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:57:45,486 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:57:45,487 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:57:45,487 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:57:45,490 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:57:45,491 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:57:45,492 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:57:45,493 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:57:45,493 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:57:45,498 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:57:45,499 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:57:45,499 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:57:45,500 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:57:45,500 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:57:45,502 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:57:45,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:57:45,507 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-03 02:57:45,529 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:57:45,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:57:45,530 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:57:45,530 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:57:45,531 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:57:45,531 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:57:45,531 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:57:45,531 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:57:45,531 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:57:45,532 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:57:45,532 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:57:45,533 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:57:45,533 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:57:45,533 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:57:45,533 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:57:45,534 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:57:45,534 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:57:45,534 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:57:45,534 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:57:45,534 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:57:45,535 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:57:45,535 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:57:45,535 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:57:45,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:57:45,536 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:57:45,536 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:57:45,536 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:57:45,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:57:45,536 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:57:45,537 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:57:45,565 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:57:45,579 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:57:45,582 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:57:45,584 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:57:45,584 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:57:45,585 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product56.cil.c [2019-10-03 02:57:45,651 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ca72e46a/cbf5db947d53496287dcab49f393a567/FLAG5c1df675a [2019-10-03 02:57:46,173 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:57:46,174 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product56.cil.c [2019-10-03 02:57:46,190 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ca72e46a/cbf5db947d53496287dcab49f393a567/FLAG5c1df675a [2019-10-03 02:57:46,465 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ca72e46a/cbf5db947d53496287dcab49f393a567 [2019-10-03 02:57:46,474 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:57:46,475 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:57:46,476 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:57:46,476 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:57:46,480 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:57:46,481 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:57:46" (1/1) ... [2019-10-03 02:57:46,484 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9515a38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:46, skipping insertion in model container [2019-10-03 02:57:46,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:57:46" (1/1) ... [2019-10-03 02:57:46,490 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:57:46,551 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:57:46,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:57:47,010 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:57:47,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:57:47,185 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:57:47,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:47 WrapperNode [2019-10-03 02:57:47,186 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:57:47,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:57:47,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:57:47,187 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:57:47,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:47" (1/1) ... [2019-10-03 02:57:47,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:47" (1/1) ... [2019-10-03 02:57:47,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:47" (1/1) ... [2019-10-03 02:57:47,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:47" (1/1) ... [2019-10-03 02:57:47,277 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:47" (1/1) ... [2019-10-03 02:57:47,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:47" (1/1) ... [2019-10-03 02:57:47,293 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:47" (1/1) ... [2019-10-03 02:57:47,309 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:57:47,311 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:57:47,311 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:57:47,312 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:57:47,313 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:47" (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 [2019-10-03 02:57:47,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:57:47,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:57:47,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:57:47,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:57:47,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:57:47,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:57:47,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:57:47,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:57:47,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:57:47,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:57:47,410 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-03 02:57:47,410 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-03 02:57:47,410 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-03 02:57:47,411 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-03 02:57:47,411 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-03 02:57:47,412 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-03 02:57:47,413 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-03 02:57:47,413 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-03 02:57:47,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-03 02:57:47,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-03 02:57:47,413 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:57:47,413 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-03 02:57:47,414 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-03 02:57:47,414 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-03 02:57:47,414 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-03 02:57:47,415 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-03 02:57:47,415 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-03 02:57:47,415 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-03 02:57:47,415 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-03 02:57:47,415 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-03 02:57:47,416 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-03 02:57:47,416 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-03 02:57:47,416 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-03 02:57:47,416 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-03 02:57:47,416 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:57:47,417 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:57:47,417 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:57:47,417 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:57:47,417 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:57:47,417 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:57:47,418 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:57:47,418 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:57:47,418 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:57:47,418 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:57:47,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:57:47,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:57:47,419 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:57:47,420 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:57:47,420 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:57:47,420 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:57:47,420 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:57:47,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:57:47,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:57:47,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:57:47,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:57:47,421 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:57:47,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:57:47,422 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:57:47,422 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:57:47,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:57:47,422 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:57:47,422 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:57:47,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:57:47,423 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:57:47,423 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:57:47,423 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-03 02:57:47,423 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-03 02:57:47,423 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-03 02:57:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-03 02:57:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-03 02:57:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-03 02:57:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-03 02:57:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-03 02:57:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-03 02:57:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-03 02:57:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-03 02:57:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:57:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-03 02:57:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-03 02:57:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-03 02:57:47,427 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-03 02:57:47,427 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-03 02:57:47,427 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-03 02:57:47,427 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-03 02:57:47,427 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-03 02:57:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-03 02:57:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-03 02:57:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-03 02:57:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-03 02:57:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:57:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:57:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:57:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:57:47,431 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:57:47,431 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:57:47,431 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:57:47,431 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:57:47,432 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:57:47,432 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:57:47,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:57:47,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:57:47,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:57:48,834 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:57:48,839 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:57:48,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:57:48 BoogieIcfgContainer [2019-10-03 02:57:48,841 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:57:48,842 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:57:48,842 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:57:48,846 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:57:48,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:57:46" (1/3) ... [2019-10-03 02:57:48,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66cab8e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:57:48, skipping insertion in model container [2019-10-03 02:57:48,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:47" (2/3) ... [2019-10-03 02:57:48,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66cab8e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:57:48, skipping insertion in model container [2019-10-03 02:57:48,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:57:48" (3/3) ... [2019-10-03 02:57:48,853 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product56.cil.c [2019-10-03 02:57:48,863 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:57:48,874 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:57:48,892 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:57:48,918 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:57:48,919 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:57:48,919 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:57:48,919 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:57:48,919 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:57:48,920 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:57:48,920 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:57:48,920 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:57:48,941 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states. [2019-10-03 02:57:48,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-03 02:57:48,955 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:48,956 INFO L411 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] [2019-10-03 02:57:48,958 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:48,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:48,964 INFO L82 PathProgramCache]: Analyzing trace with hash -453171886, now seen corresponding path program 1 times [2019-10-03 02:57:48,967 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:49,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:49,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:49,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:49,025 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:49,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:49,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:49,355 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:49,355 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:57:49,356 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:49,372 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:57:49,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:57:49,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:57:49,392 INFO L87 Difference]: Start difference. First operand 201 states. Second operand 2 states. [2019-10-03 02:57:49,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:49,426 INFO L93 Difference]: Finished difference Result 169 states and 200 transitions. [2019-10-03 02:57:49,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:57:49,428 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-10-03 02:57:49,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:49,443 INFO L225 Difference]: With dead ends: 169 [2019-10-03 02:57:49,444 INFO L226 Difference]: Without dead ends: 158 [2019-10-03 02:57:49,446 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:57:49,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2019-10-03 02:57:49,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2019-10-03 02:57:49,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-10-03 02:57:49,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 188 transitions. [2019-10-03 02:57:49,510 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 188 transitions. Word has length 51 [2019-10-03 02:57:49,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:49,511 INFO L475 AbstractCegarLoop]: Abstraction has 158 states and 188 transitions. [2019-10-03 02:57:49,511 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:57:49,511 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 188 transitions. [2019-10-03 02:57:49,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-03 02:57:49,522 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:49,522 INFO L411 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] [2019-10-03 02:57:49,522 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:49,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:49,523 INFO L82 PathProgramCache]: Analyzing trace with hash 23130160, now seen corresponding path program 1 times [2019-10-03 02:57:49,523 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:49,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:49,527 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:49,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:49,528 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:49,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:49,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:49,716 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:49,717 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:57:49,717 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:49,718 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:57:49,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:57:49,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:57:49,721 INFO L87 Difference]: Start difference. First operand 158 states and 188 transitions. Second operand 3 states. [2019-10-03 02:57:49,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:49,743 INFO L93 Difference]: Finished difference Result 149 states and 176 transitions. [2019-10-03 02:57:49,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:57:49,744 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-10-03 02:57:49,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:49,747 INFO L225 Difference]: With dead ends: 149 [2019-10-03 02:57:49,747 INFO L226 Difference]: Without dead ends: 149 [2019-10-03 02:57:49,748 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:57:49,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2019-10-03 02:57:49,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2019-10-03 02:57:49,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2019-10-03 02:57:49,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 176 transitions. [2019-10-03 02:57:49,764 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 176 transitions. Word has length 52 [2019-10-03 02:57:49,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:49,764 INFO L475 AbstractCegarLoop]: Abstraction has 149 states and 176 transitions. [2019-10-03 02:57:49,765 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:57:49,765 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 176 transitions. [2019-10-03 02:57:49,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-03 02:57:49,767 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:49,767 INFO L411 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] [2019-10-03 02:57:49,768 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:49,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:49,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1418292754, now seen corresponding path program 1 times [2019-10-03 02:57:49,768 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:49,771 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:49,771 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:49,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:49,772 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:49,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:49,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:49,912 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:49,912 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:57:49,912 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:49,914 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:57:49,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:57:49,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:57:49,915 INFO L87 Difference]: Start difference. First operand 149 states and 176 transitions. Second operand 7 states. [2019-10-03 02:57:50,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:50,530 INFO L93 Difference]: Finished difference Result 321 states and 390 transitions. [2019-10-03 02:57:50,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:57:50,531 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-10-03 02:57:50,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:50,542 INFO L225 Difference]: With dead ends: 321 [2019-10-03 02:57:50,542 INFO L226 Difference]: Without dead ends: 321 [2019-10-03 02:57:50,545 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-03 02:57:50,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2019-10-03 02:57:50,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 309. [2019-10-03 02:57:50,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2019-10-03 02:57:50,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 378 transitions. [2019-10-03 02:57:50,596 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 378 transitions. Word has length 57 [2019-10-03 02:57:50,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:50,597 INFO L475 AbstractCegarLoop]: Abstraction has 309 states and 378 transitions. [2019-10-03 02:57:50,597 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:57:50,597 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 378 transitions. [2019-10-03 02:57:50,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-10-03 02:57:50,601 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:50,601 INFO L411 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] [2019-10-03 02:57:50,601 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:50,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:50,602 INFO L82 PathProgramCache]: Analyzing trace with hash -335998659, now seen corresponding path program 1 times [2019-10-03 02:57:50,602 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:50,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:50,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:50,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:50,606 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:50,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:50,761 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:50,761 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:57:50,761 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:50,762 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:57:50,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:57:50,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:57:50,762 INFO L87 Difference]: Start difference. First operand 309 states and 378 transitions. Second operand 6 states. [2019-10-03 02:57:51,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:51,023 INFO L93 Difference]: Finished difference Result 572 states and 702 transitions. [2019-10-03 02:57:51,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:57:51,024 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2019-10-03 02:57:51,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:51,029 INFO L225 Difference]: With dead ends: 572 [2019-10-03 02:57:51,030 INFO L226 Difference]: Without dead ends: 572 [2019-10-03 02:57:51,030 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-03 02:57:51,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2019-10-03 02:57:51,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 566. [2019-10-03 02:57:51,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2019-10-03 02:57:51,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 696 transitions. [2019-10-03 02:57:51,079 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 696 transitions. Word has length 62 [2019-10-03 02:57:51,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:51,079 INFO L475 AbstractCegarLoop]: Abstraction has 566 states and 696 transitions. [2019-10-03 02:57:51,079 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:57:51,079 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 696 transitions. [2019-10-03 02:57:51,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-10-03 02:57:51,084 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:51,084 INFO L411 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] [2019-10-03 02:57:51,085 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:51,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:51,085 INFO L82 PathProgramCache]: Analyzing trace with hash 563759321, now seen corresponding path program 1 times [2019-10-03 02:57:51,085 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:51,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:51,091 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:51,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:51,095 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:51,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:51,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:51,244 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:51,244 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:57:51,244 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:51,246 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:57:51,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:57:51,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:57:51,249 INFO L87 Difference]: Start difference. First operand 566 states and 696 transitions. Second operand 7 states. [2019-10-03 02:57:52,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:52,103 INFO L93 Difference]: Finished difference Result 925 states and 1174 transitions. [2019-10-03 02:57:52,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-03 02:57:52,103 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 66 [2019-10-03 02:57:52,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:52,111 INFO L225 Difference]: With dead ends: 925 [2019-10-03 02:57:52,112 INFO L226 Difference]: Without dead ends: 925 [2019-10-03 02:57:52,112 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-03 02:57:52,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2019-10-03 02:57:52,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 827. [2019-10-03 02:57:52,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 827 states. [2019-10-03 02:57:52,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1007 transitions. [2019-10-03 02:57:52,166 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1007 transitions. Word has length 66 [2019-10-03 02:57:52,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:52,166 INFO L475 AbstractCegarLoop]: Abstraction has 827 states and 1007 transitions. [2019-10-03 02:57:52,167 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:57:52,167 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1007 transitions. [2019-10-03 02:57:52,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-03 02:57:52,170 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:52,171 INFO L411 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, 1, 1] [2019-10-03 02:57:52,171 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:52,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:52,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1340944239, now seen corresponding path program 1 times [2019-10-03 02:57:52,172 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:52,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:52,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:52,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:52,175 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:52,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:52,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:52,272 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:52,272 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:57:52,272 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:52,273 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:57:52,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:57:52,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:57:52,274 INFO L87 Difference]: Start difference. First operand 827 states and 1007 transitions. Second operand 6 states. [2019-10-03 02:57:52,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:52,312 INFO L93 Difference]: Finished difference Result 847 states and 1027 transitions. [2019-10-03 02:57:52,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:57:52,313 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 94 [2019-10-03 02:57:52,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:52,320 INFO L225 Difference]: With dead ends: 847 [2019-10-03 02:57:52,320 INFO L226 Difference]: Without dead ends: 847 [2019-10-03 02:57:52,320 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:57:52,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2019-10-03 02:57:52,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 847. [2019-10-03 02:57:52,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 847 states. [2019-10-03 02:57:52,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1027 transitions. [2019-10-03 02:57:52,361 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1027 transitions. Word has length 94 [2019-10-03 02:57:52,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:52,362 INFO L475 AbstractCegarLoop]: Abstraction has 847 states and 1027 transitions. [2019-10-03 02:57:52,362 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:57:52,362 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1027 transitions. [2019-10-03 02:57:52,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-03 02:57:52,365 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:52,366 INFO L411 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, 1, 1] [2019-10-03 02:57:52,366 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:52,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:52,367 INFO L82 PathProgramCache]: Analyzing trace with hash -1413330797, now seen corresponding path program 1 times [2019-10-03 02:57:52,367 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:52,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:52,371 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:52,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:52,372 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:52,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:52,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:52,511 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:52,511 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-03 02:57:52,511 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:52,512 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-03 02:57:52,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-03 02:57:52,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:57:52,513 INFO L87 Difference]: Start difference. First operand 847 states and 1027 transitions. Second operand 8 states. [2019-10-03 02:57:52,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:52,554 INFO L93 Difference]: Finished difference Result 875 states and 1055 transitions. [2019-10-03 02:57:52,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:57:52,555 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 94 [2019-10-03 02:57:52,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:52,562 INFO L225 Difference]: With dead ends: 875 [2019-10-03 02:57:52,562 INFO L226 Difference]: Without dead ends: 875 [2019-10-03 02:57:52,562 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:57:52,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2019-10-03 02:57:52,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 863. [2019-10-03 02:57:52,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 863 states. [2019-10-03 02:57:52,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1043 transitions. [2019-10-03 02:57:52,600 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1043 transitions. Word has length 94 [2019-10-03 02:57:52,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:52,600 INFO L475 AbstractCegarLoop]: Abstraction has 863 states and 1043 transitions. [2019-10-03 02:57:52,600 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-03 02:57:52,600 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1043 transitions. [2019-10-03 02:57:52,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-03 02:57:52,609 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:52,609 INFO L411 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, 1, 1] [2019-10-03 02:57:52,609 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:52,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:52,610 INFO L82 PathProgramCache]: Analyzing trace with hash -1083565036, now seen corresponding path program 1 times [2019-10-03 02:57:52,610 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:52,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:52,612 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:52,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:52,614 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:52,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:52,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:52,748 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:52,749 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-03 02:57:52,749 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:52,750 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-03 02:57:52,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-03 02:57:52,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:57:52,750 INFO L87 Difference]: Start difference. First operand 863 states and 1043 transitions. Second operand 4 states. [2019-10-03 02:57:53,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:53,036 INFO L93 Difference]: Finished difference Result 1954 states and 2455 transitions. [2019-10-03 02:57:53,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-03 02:57:53,037 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 94 [2019-10-03 02:57:53,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:53,052 INFO L225 Difference]: With dead ends: 1954 [2019-10-03 02:57:53,052 INFO L226 Difference]: Without dead ends: 1954 [2019-10-03 02:57:53,052 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:57:53,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states. [2019-10-03 02:57:53,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1923. [2019-10-03 02:57:53,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1923 states. [2019-10-03 02:57:53,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1923 states to 1923 states and 2383 transitions. [2019-10-03 02:57:53,141 INFO L78 Accepts]: Start accepts. Automaton has 1923 states and 2383 transitions. Word has length 94 [2019-10-03 02:57:53,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:53,141 INFO L475 AbstractCegarLoop]: Abstraction has 1923 states and 2383 transitions. [2019-10-03 02:57:53,142 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-03 02:57:53,142 INFO L276 IsEmpty]: Start isEmpty. Operand 1923 states and 2383 transitions. [2019-10-03 02:57:53,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-03 02:57:53,145 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:53,146 INFO L411 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, 1, 1, 1, 1, 1, 1] [2019-10-03 02:57:53,146 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:53,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:53,146 INFO L82 PathProgramCache]: Analyzing trace with hash -452793586, now seen corresponding path program 1 times [2019-10-03 02:57:53,147 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:53,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:53,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:53,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:53,150 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:53,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:53,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:53,216 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:53,216 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:57:53,217 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:53,217 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:57:53,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:57:53,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:57:53,218 INFO L87 Difference]: Start difference. First operand 1923 states and 2383 transitions. Second operand 3 states. [2019-10-03 02:57:53,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:53,280 INFO L93 Difference]: Finished difference Result 3111 states and 3967 transitions. [2019-10-03 02:57:53,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:57:53,280 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 98 [2019-10-03 02:57:53,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:53,310 INFO L225 Difference]: With dead ends: 3111 [2019-10-03 02:57:53,311 INFO L226 Difference]: Without dead ends: 3111 [2019-10-03 02:57:53,312 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:57:53,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3111 states. [2019-10-03 02:57:53,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3111 to 2951. [2019-10-03 02:57:53,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2951 states. [2019-10-03 02:57:53,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2951 states to 2951 states and 3777 transitions. [2019-10-03 02:57:53,520 INFO L78 Accepts]: Start accepts. Automaton has 2951 states and 3777 transitions. Word has length 98 [2019-10-03 02:57:53,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:53,521 INFO L475 AbstractCegarLoop]: Abstraction has 2951 states and 3777 transitions. [2019-10-03 02:57:53,522 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:57:53,522 INFO L276 IsEmpty]: Start isEmpty. Operand 2951 states and 3777 transitions. [2019-10-03 02:57:53,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-03 02:57:53,541 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:53,541 INFO L411 BasicCegarLoop]: trace histogram [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, 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] [2019-10-03 02:57:53,542 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:53,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:53,542 INFO L82 PathProgramCache]: Analyzing trace with hash 1115432797, now seen corresponding path program 1 times [2019-10-03 02:57:53,542 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:53,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:53,546 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:53,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:53,546 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:53,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:53,681 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-03 02:57:53,681 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:57:53,682 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:57:53,683 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 163 with the following transitions: [2019-10-03 02:57:53,685 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [103], [119], [123], [124], [125], [140], [143], [145], [154], [158], [162], [165], [168], [170], [173], [176], [178], [184], [190], [200], [202], [205], [207], [210], [213], [216], [224], [234], [235], [236], [237], [240], [242], [247], [249], [250], [251], [252], [258], [262], [268], [304], [307], [309], [312], [322], [325], [329], [330], [333], [348], [351], [352], [353], [354], [448], [449], [456], [458], [459], [467], [468], [469], [470], [471], [472], [473], [474], [475], [517], [518], [519], [520], [521], [522], [527], [528], [531], [532], [533], [534], [535], [537], [538], [541], [542], [543], [544], [549], [550], [551], [552], [563], [564], [567], [568], [569], [577], [578], [579] [2019-10-03 02:57:53,816 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:57:53,816 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:57:53,926 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:57:53,928 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 69 root evaluator evaluations with a maximum evaluation depth of 0. Performed 69 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 128 variables. [2019-10-03 02:57:53,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:53,934 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:57:54,028 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:57:54,028 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:57:54,037 INFO L420 sIntCurrentIteration]: We unified 161 AI predicates to 161 [2019-10-03 02:57:54,038 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:57:54,039 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:57:54,039 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-10-03 02:57:54,039 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:54,040 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:57:54,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:57:54,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:57:54,040 INFO L87 Difference]: Start difference. First operand 2951 states and 3777 transitions. Second operand 2 states. [2019-10-03 02:57:54,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:54,041 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:57:54,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:57:54,041 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 162 [2019-10-03 02:57:54,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:54,042 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:57:54,042 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:57:54,043 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:57:54,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:57:54,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:57:54,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:57:54,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:57:54,044 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 162 [2019-10-03 02:57:54,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:54,045 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:57:54,045 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:57:54,045 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:57:54,045 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:57:54,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:57:54 BoogieIcfgContainer [2019-10-03 02:57:54,050 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:57:54,053 INFO L168 Benchmark]: Toolchain (without parser) took 7576.75 ms. Allocated memory was 132.6 MB in the beginning and 327.2 MB in the end (delta: 194.5 MB). Free memory was 86.3 MB in the beginning and 269.8 MB in the end (delta: -183.4 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:54,054 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 132.6 MB. Free memory was 105.7 MB in the beginning and 105.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:57:54,056 INFO L168 Benchmark]: CACSL2BoogieTranslator took 710.19 ms. Allocated memory was 132.6 MB in the beginning and 200.8 MB in the end (delta: 68.2 MB). Free memory was 86.1 MB in the beginning and 164.5 MB in the end (delta: -78.4 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:54,058 INFO L168 Benchmark]: Boogie Preprocessor took 123.04 ms. Allocated memory is still 200.8 MB. Free memory was 164.5 MB in the beginning and 160.0 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:54,065 INFO L168 Benchmark]: RCFGBuilder took 1529.98 ms. Allocated memory was 200.8 MB in the beginning and 224.4 MB in the end (delta: 23.6 MB). Free memory was 160.0 MB in the beginning and 186.5 MB in the end (delta: -26.5 MB). Peak memory consumption was 89.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:54,066 INFO L168 Benchmark]: TraceAbstraction took 5208.17 ms. Allocated memory was 224.4 MB in the beginning and 327.2 MB in the end (delta: 102.8 MB). Free memory was 186.5 MB in the beginning and 269.8 MB in the end (delta: -83.2 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:54,079 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 132.6 MB. Free memory was 105.7 MB in the beginning and 105.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 710.19 ms. Allocated memory was 132.6 MB in the beginning and 200.8 MB in the end (delta: 68.2 MB). Free memory was 86.1 MB in the beginning and 164.5 MB in the end (delta: -78.4 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.04 ms. Allocated memory is still 200.8 MB. Free memory was 164.5 MB in the beginning and 160.0 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1529.98 ms. Allocated memory was 200.8 MB in the beginning and 224.4 MB in the end (delta: 23.6 MB). Free memory was 160.0 MB in the beginning and 186.5 MB in the end (delta: -26.5 MB). Peak memory consumption was 89.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5208.17 ms. Allocated memory was 224.4 MB in the beginning and 327.2 MB in the end (delta: 102.8 MB). Free memory was 186.5 MB in the beginning and 269.8 MB in the end (delta: -83.2 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 410]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 44 procedures, 260 locations, 1 error locations. SAFE Result, 5.1s OverallTime, 10 OverallIterations, 2 TraceHistogramMax, 2.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1813 SDtfs, 1013 SDslu, 3990 SDs, 0 SdLazy, 1068 SolverSat, 141 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 241 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2951occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.8322981366459627 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 319 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 830 NumberOfCodeBlocks, 830 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 820 ConstructedInterpolants, 0 QuantifiedInterpolants, 119025 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 52/60 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...