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_spec5_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:51:06,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:51:06,416 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:51:06,428 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:51:06,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:51:06,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:51:06,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:51:06,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:51:06,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:51:06,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:51:06,437 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:51:06,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:51:06,438 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:51:06,439 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:51:06,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:51:06,441 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:51:06,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:51:06,443 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:51:06,445 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:51:06,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:51:06,448 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:51:06,450 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:51:06,451 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:51:06,451 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:51:06,453 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:51:06,454 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:51:06,454 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:51:06,455 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:51:06,455 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:51:06,456 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:51:06,456 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:51:06,457 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:51:06,458 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:51:06,458 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:51:06,459 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:51:06,460 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:51:06,460 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:51:06,461 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:51:06,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:51:06,463 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:51:06,464 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:51:06,465 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 [2019-09-10 02:51:06,489 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:51:06,490 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:51:06,490 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:51:06,490 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:51:06,491 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:51:06,491 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:51:06,491 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:51:06,492 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:51:06,492 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:51:06,492 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:51:06,493 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:51:06,493 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:51:06,493 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:51:06,493 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:51:06,493 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:51:06,494 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:51:06,494 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:51:06,494 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:51:06,494 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:51:06,494 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:51:06,495 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:51:06,495 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:51:06,495 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:51:06,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:51:06,495 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:51:06,496 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:51:06,496 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:51:06,496 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:51:06,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:51:06,496 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:51:06,537 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:51:06,549 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:51:06,553 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:51:06,554 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:51:06,555 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:51:06,555 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product49.cil.c [2019-09-10 02:51:06,620 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3b0e3e37/a796a9352220493faf988eb483fd9f51/FLAGb1a6514c2 [2019-09-10 02:51:07,181 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:51:07,183 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product49.cil.c [2019-09-10 02:51:07,202 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3b0e3e37/a796a9352220493faf988eb483fd9f51/FLAGb1a6514c2 [2019-09-10 02:51:07,399 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3b0e3e37/a796a9352220493faf988eb483fd9f51 [2019-09-10 02:51:07,409 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:51:07,410 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:51:07,411 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:51:07,411 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:51:07,415 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:51:07,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:51:07" (1/1) ... [2019-09-10 02:51:07,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48d46afb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:51:07, skipping insertion in model container [2019-09-10 02:51:07,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:51:07" (1/1) ... [2019-09-10 02:51:07,426 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:51:07,487 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:51:07,944 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:51:07,968 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:51:08,114 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:51:08,158 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:51:08,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:51:08 WrapperNode [2019-09-10 02:51:08,159 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:51:08,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:51:08,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:51:08,160 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:51:08,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:51:08" (1/1) ... [2019-09-10 02:51:08,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:51:08" (1/1) ... [2019-09-10 02:51:08,194 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:51:08" (1/1) ... [2019-09-10 02:51:08,194 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:51:08" (1/1) ... [2019-09-10 02:51:08,222 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:51:08" (1/1) ... [2019-09-10 02:51:08,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:51:08" (1/1) ... [2019-09-10 02:51:08,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:51:08" (1/1) ... [2019-09-10 02:51:08,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:51:08,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:51:08,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:51:08,249 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:51:08,250 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:51:08" (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 [2019-09-10 02:51:08,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:51:08,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:51:08,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:51:08,305 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:51:08,305 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-10 02:51:08,305 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-10 02:51:08,305 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:51:08,305 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:51:08,306 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:51:08,306 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:51:08,306 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:51:08,306 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:51:08,307 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-10 02:51:08,308 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-10 02:51:08,308 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:51:08,309 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:51:08,309 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:51:08,309 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:51:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:51:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:51:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:51:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-10 02:51:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-10 02:51:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:51:08,311 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:51:08,311 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:51:08,311 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:51:08,312 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:51:08,312 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:51:08,312 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:51:08,313 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:51:08,313 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:51:08,313 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:51:08,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:51:08,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:51:08,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:51:08,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:51:08,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:51:08,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:51:08,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-09-10 02:51:08,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-09-10 02:51:08,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-09-10 02:51:08,314 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:51:08,315 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:51:08,315 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:51:08,315 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:51:08,316 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:51:08,316 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:51:08,316 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-10 02:51:08,316 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-10 02:51:08,316 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:51:08,316 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:51:08,316 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:51:08,317 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:51:08,317 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:51:08,317 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-09-10 02:51:08,317 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-09-10 02:51:08,317 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:51:08,317 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-10 02:51:08,318 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-10 02:51:08,318 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-10 02:51:08,318 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-10 02:51:08,318 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:51:08,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:51:08,318 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:51:08,319 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:51:08,319 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:51:08,319 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:51:08,319 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:51:08,319 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:51:08,319 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:51:08,320 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:51:08,320 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-09-10 02:51:08,321 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:51:08,321 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:51:08,321 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:51:08,321 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:51:08,321 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:51:08,321 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:51:08,322 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:51:08,322 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:51:08,322 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:51:08,322 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:51:08,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:51:08,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:51:08,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:51:08,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:51:08,325 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:51:08,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:51:08,325 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:51:08,325 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:51:08,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:51:08,325 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:51:08,326 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:51:08,326 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:51:08,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:51:08,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:51:08,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:51:09,488 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:51:09,488 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:51:09,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:51:09 BoogieIcfgContainer [2019-09-10 02:51:09,490 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:51:09,492 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:51:09,492 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:51:09,495 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:51:09,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:51:07" (1/3) ... [2019-09-10 02:51:09,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@361c3b45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:51:09, skipping insertion in model container [2019-09-10 02:51:09,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:51:08" (2/3) ... [2019-09-10 02:51:09,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@361c3b45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:51:09, skipping insertion in model container [2019-09-10 02:51:09,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:51:09" (3/3) ... [2019-09-10 02:51:09,500 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product49.cil.c [2019-09-10 02:51:09,511 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:51:09,523 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:51:09,540 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:51:09,575 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:51:09,575 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:51:09,575 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:51:09,575 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:51:09,576 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:51:09,577 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:51:09,577 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:51:09,577 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:51:09,605 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states. [2019-09-10 02:51:09,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-10 02:51:09,627 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:09,628 INFO L399 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] [2019-09-10 02:51:09,632 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:09,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:09,637 INFO L82 PathProgramCache]: Analyzing trace with hash 464701397, now seen corresponding path program 1 times [2019-09-10 02:51:09,640 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:09,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:09,685 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:09,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:09,685 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:09,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:09,947 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:51:09,950 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:51:09,950 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:51:09,951 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:51:09,958 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:51:09,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:51:09,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:51:09,977 INFO L87 Difference]: Start difference. First operand 181 states. Second operand 2 states. [2019-09-10 02:51:10,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:10,014 INFO L93 Difference]: Finished difference Result 149 states and 174 transitions. [2019-09-10 02:51:10,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:51:10,015 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2019-09-10 02:51:10,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:10,027 INFO L225 Difference]: With dead ends: 149 [2019-09-10 02:51:10,027 INFO L226 Difference]: Without dead ends: 138 [2019-09-10 02:51:10,029 INFO L628 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 [2019-09-10 02:51:10,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2019-09-10 02:51:10,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2019-09-10 02:51:10,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2019-09-10 02:51:10,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 162 transitions. [2019-09-10 02:51:10,123 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 162 transitions. Word has length 59 [2019-09-10 02:51:10,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:10,124 INFO L475 AbstractCegarLoop]: Abstraction has 138 states and 162 transitions. [2019-09-10 02:51:10,124 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:51:10,125 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 162 transitions. [2019-09-10 02:51:10,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-10 02:51:10,132 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:10,133 INFO L399 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] [2019-09-10 02:51:10,134 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:10,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:10,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1838047012, now seen corresponding path program 1 times [2019-09-10 02:51:10,136 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:10,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:10,137 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:10,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:10,138 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:10,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:10,315 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:51:10,316 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:51:10,316 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:51:10,316 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:51:10,318 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:51:10,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:51:10,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:51:10,319 INFO L87 Difference]: Start difference. First operand 138 states and 162 transitions. Second operand 3 states. [2019-09-10 02:51:10,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:10,338 INFO L93 Difference]: Finished difference Result 138 states and 161 transitions. [2019-09-10 02:51:10,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:51:10,339 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2019-09-10 02:51:10,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:10,342 INFO L225 Difference]: With dead ends: 138 [2019-09-10 02:51:10,342 INFO L226 Difference]: Without dead ends: 138 [2019-09-10 02:51:10,343 INFO L628 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 [2019-09-10 02:51:10,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2019-09-10 02:51:10,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2019-09-10 02:51:10,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2019-09-10 02:51:10,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 161 transitions. [2019-09-10 02:51:10,356 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 161 transitions. Word has length 64 [2019-09-10 02:51:10,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:10,358 INFO L475 AbstractCegarLoop]: Abstraction has 138 states and 161 transitions. [2019-09-10 02:51:10,358 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:51:10,358 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 161 transitions. [2019-09-10 02:51:10,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-09-10 02:51:10,361 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:10,361 INFO L399 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] [2019-09-10 02:51:10,362 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:10,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:10,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1442070676, now seen corresponding path program 1 times [2019-09-10 02:51:10,362 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:10,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:10,363 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:10,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:10,364 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:10,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:10,438 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:51:10,438 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:51:10,439 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:51:10,439 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:51:10,439 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:51:10,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:51:10,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:51:10,441 INFO L87 Difference]: Start difference. First operand 138 states and 161 transitions. Second operand 3 states. [2019-09-10 02:51:10,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:10,460 INFO L93 Difference]: Finished difference Result 129 states and 149 transitions. [2019-09-10 02:51:10,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:51:10,461 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2019-09-10 02:51:10,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:10,464 INFO L225 Difference]: With dead ends: 129 [2019-09-10 02:51:10,464 INFO L226 Difference]: Without dead ends: 129 [2019-09-10 02:51:10,464 INFO L628 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 [2019-09-10 02:51:10,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-09-10 02:51:10,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2019-09-10 02:51:10,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-09-10 02:51:10,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 149 transitions. [2019-09-10 02:51:10,485 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 149 transitions. Word has length 73 [2019-09-10 02:51:10,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:10,491 INFO L475 AbstractCegarLoop]: Abstraction has 129 states and 149 transitions. [2019-09-10 02:51:10,491 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:51:10,491 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 149 transitions. [2019-09-10 02:51:10,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-09-10 02:51:10,493 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:10,493 INFO L399 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] [2019-09-10 02:51:10,493 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:10,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:10,494 INFO L82 PathProgramCache]: Analyzing trace with hash -745886990, now seen corresponding path program 1 times [2019-09-10 02:51:10,494 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:10,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:10,495 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:10,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:10,500 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:10,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:10,632 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:51:10,633 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:51:10,633 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:51:10,633 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:51:10,634 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:51:10,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:51:10,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:51:10,634 INFO L87 Difference]: Start difference. First operand 129 states and 149 transitions. Second operand 5 states. [2019-09-10 02:51:11,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:11,304 INFO L93 Difference]: Finished difference Result 230 states and 268 transitions. [2019-09-10 02:51:11,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:51:11,304 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 77 [2019-09-10 02:51:11,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:11,310 INFO L225 Difference]: With dead ends: 230 [2019-09-10 02:51:11,311 INFO L226 Difference]: Without dead ends: 230 [2019-09-10 02:51:11,312 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:51:11,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2019-09-10 02:51:11,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 212. [2019-09-10 02:51:11,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2019-09-10 02:51:11,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 244 transitions. [2019-09-10 02:51:11,340 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 244 transitions. Word has length 77 [2019-09-10 02:51:11,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:11,341 INFO L475 AbstractCegarLoop]: Abstraction has 212 states and 244 transitions. [2019-09-10 02:51:11,341 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:51:11,341 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 244 transitions. [2019-09-10 02:51:11,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-09-10 02:51:11,351 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:11,352 INFO L399 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] [2019-09-10 02:51:11,352 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:11,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:11,352 INFO L82 PathProgramCache]: Analyzing trace with hash -47194942, now seen corresponding path program 1 times [2019-09-10 02:51:11,352 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:11,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:11,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:11,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:11,354 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:11,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:11,496 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-10 02:51:11,497 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:51:11,497 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:51:11,497 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:51:11,498 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:51:11,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:51:11,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:51:11,499 INFO L87 Difference]: Start difference. First operand 212 states and 244 transitions. Second operand 7 states. [2019-09-10 02:51:12,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:12,216 INFO L93 Difference]: Finished difference Result 229 states and 268 transitions. [2019-09-10 02:51:12,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-10 02:51:12,217 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 91 [2019-09-10 02:51:12,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:12,219 INFO L225 Difference]: With dead ends: 229 [2019-09-10 02:51:12,219 INFO L226 Difference]: Without dead ends: 229 [2019-09-10 02:51:12,220 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-10 02:51:12,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2019-09-10 02:51:12,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 211. [2019-09-10 02:51:12,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2019-09-10 02:51:12,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 241 transitions. [2019-09-10 02:51:12,242 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 241 transitions. Word has length 91 [2019-09-10 02:51:12,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:12,243 INFO L475 AbstractCegarLoop]: Abstraction has 211 states and 241 transitions. [2019-09-10 02:51:12,243 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:51:12,243 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 241 transitions. [2019-09-10 02:51:12,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-09-10 02:51:12,245 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:12,246 INFO L399 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] [2019-09-10 02:51:12,246 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:12,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:12,250 INFO L82 PathProgramCache]: Analyzing trace with hash -238329201, now seen corresponding path program 1 times [2019-09-10 02:51:12,250 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:12,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:12,251 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:12,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:12,252 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:12,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:12,376 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:51:12,377 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:51:12,377 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:51:12,377 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:51:12,378 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:51:12,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:51:12,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:51:12,379 INFO L87 Difference]: Start difference. First operand 211 states and 241 transitions. Second operand 6 states. [2019-09-10 02:51:12,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:12,412 INFO L93 Difference]: Finished difference Result 216 states and 246 transitions. [2019-09-10 02:51:12,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:51:12,413 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 92 [2019-09-10 02:51:12,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:12,416 INFO L225 Difference]: With dead ends: 216 [2019-09-10 02:51:12,417 INFO L226 Difference]: Without dead ends: 216 [2019-09-10 02:51:12,417 INFO L628 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 [2019-09-10 02:51:12,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2019-09-10 02:51:12,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2019-09-10 02:51:12,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2019-09-10 02:51:12,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 246 transitions. [2019-09-10 02:51:12,443 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 246 transitions. Word has length 92 [2019-09-10 02:51:12,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:12,444 INFO L475 AbstractCegarLoop]: Abstraction has 216 states and 246 transitions. [2019-09-10 02:51:12,444 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:51:12,444 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 246 transitions. [2019-09-10 02:51:12,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-09-10 02:51:12,445 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:12,445 INFO L399 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] [2019-09-10 02:51:12,446 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:12,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:12,446 INFO L82 PathProgramCache]: Analyzing trace with hash 463270673, now seen corresponding path program 1 times [2019-09-10 02:51:12,446 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:12,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:12,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:12,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:12,450 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:12,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:12,577 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:51:12,577 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:51:12,577 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 02:51:12,577 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:51:12,578 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:51:12,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:51:12,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:51:12,579 INFO L87 Difference]: Start difference. First operand 216 states and 246 transitions. Second operand 8 states. [2019-09-10 02:51:12,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:12,609 INFO L93 Difference]: Finished difference Result 223 states and 253 transitions. [2019-09-10 02:51:12,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:51:12,610 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 92 [2019-09-10 02:51:12,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:12,611 INFO L225 Difference]: With dead ends: 223 [2019-09-10 02:51:12,612 INFO L226 Difference]: Without dead ends: 223 [2019-09-10 02:51:12,612 INFO L628 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 [2019-09-10 02:51:12,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2019-09-10 02:51:12,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 220. [2019-09-10 02:51:12,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2019-09-10 02:51:12,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 250 transitions. [2019-09-10 02:51:12,621 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 250 transitions. Word has length 92 [2019-09-10 02:51:12,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:12,622 INFO L475 AbstractCegarLoop]: Abstraction has 220 states and 250 transitions. [2019-09-10 02:51:12,622 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:51:12,622 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 250 transitions. [2019-09-10 02:51:12,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-09-10 02:51:12,623 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:12,623 INFO L399 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] [2019-09-10 02:51:12,624 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:12,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:12,624 INFO L82 PathProgramCache]: Analyzing trace with hash -2106215726, now seen corresponding path program 1 times [2019-09-10 02:51:12,624 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:12,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:12,625 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:12,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:12,625 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:12,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:12,713 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:51:12,715 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:51:12,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 02:51:12,716 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:51:12,716 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 02:51:12,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 02:51:12,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:51:12,718 INFO L87 Difference]: Start difference. First operand 220 states and 250 transitions. Second operand 4 states. [2019-09-10 02:51:12,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:12,988 INFO L93 Difference]: Finished difference Result 447 states and 529 transitions. [2019-09-10 02:51:12,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 02:51:12,988 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 92 [2019-09-10 02:51:12,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:12,992 INFO L225 Difference]: With dead ends: 447 [2019-09-10 02:51:12,992 INFO L226 Difference]: Without dead ends: 447 [2019-09-10 02:51:12,992 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:51:12,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2019-09-10 02:51:13,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 438. [2019-09-10 02:51:13,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 438 states. [2019-09-10 02:51:13,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 512 transitions. [2019-09-10 02:51:13,027 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 512 transitions. Word has length 92 [2019-09-10 02:51:13,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:13,028 INFO L475 AbstractCegarLoop]: Abstraction has 438 states and 512 transitions. [2019-09-10 02:51:13,028 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 02:51:13,028 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 512 transitions. [2019-09-10 02:51:13,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-09-10 02:51:13,034 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:13,034 INFO L399 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] [2019-09-10 02:51:13,034 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:13,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:13,035 INFO L82 PathProgramCache]: Analyzing trace with hash -302189332, now seen corresponding path program 1 times [2019-09-10 02:51:13,035 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:13,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:13,036 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:13,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:13,037 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:13,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:13,313 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:51:13,314 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:51:13,314 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-09-10 02:51:13,314 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:51:13,315 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-10 02:51:13,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-10 02:51:13,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-09-10 02:51:13,315 INFO L87 Difference]: Start difference. First operand 438 states and 512 transitions. Second operand 11 states. [2019-09-10 02:51:14,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:14,547 INFO L93 Difference]: Finished difference Result 747 states and 888 transitions. [2019-09-10 02:51:14,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-10 02:51:14,548 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 96 [2019-09-10 02:51:14,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:14,555 INFO L225 Difference]: With dead ends: 747 [2019-09-10 02:51:14,555 INFO L226 Difference]: Without dead ends: 747 [2019-09-10 02:51:14,556 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2019-09-10 02:51:14,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2019-09-10 02:51:14,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 676. [2019-09-10 02:51:14,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 676 states. [2019-09-10 02:51:14,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 793 transitions. [2019-09-10 02:51:14,623 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 793 transitions. Word has length 96 [2019-09-10 02:51:14,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:14,624 INFO L475 AbstractCegarLoop]: Abstraction has 676 states and 793 transitions. [2019-09-10 02:51:14,624 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-10 02:51:14,624 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 793 transitions. [2019-09-10 02:51:14,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-09-10 02:51:14,627 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:14,627 INFO L399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:51:14,627 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:14,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:14,628 INFO L82 PathProgramCache]: Analyzing trace with hash -1029431621, now seen corresponding path program 1 times [2019-09-10 02:51:14,628 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:14,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:14,629 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:14,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:14,629 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:14,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:14,814 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-09-10 02:51:14,814 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:51:14,814 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:51:14,818 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 158 with the following transitions: [2019-09-10 02:51:14,824 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [83], [85], [88], [92], [93], [94], [110], [114], [115], [116], [119], [121], [127], [131], [134], [135], [136], [145], [149], [153], [156], [159], [161], [167], [169], [172], [187], [188], [198], [199], [200], [202], [207], [209], [210], [211], [212], [218], [221], [225], [231], [260], [264], [265], [268], [270], [273], [280], [283], [286], [290], [291], [294], [295], [296], [298], [299], [300], [302], [305], [307], [310], [313], [322], [324], [325], [326], [420], [421], [431], [439], [440], [441], [442], [443], [444], [445], [446], [447], [479], [480], [481], [482], [485], [486], [487], [488], [489], [490], [493], [494], [497], [498], [499], [500], [501], [502], [503], [504], [505], [506], [511], [512], [513], [514], [517], [518], [519], [520], [521], [522], [523], [524], [525], [529], [530], [531], [539], [540], [541] [2019-09-10 02:51:14,886 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:51:14,886 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:51:14,972 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:51:14,974 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. [2019-09-10 02:51:14,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:14,979 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:51:15,035 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:51:15,035 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:51:15,040 INFO L420 sIntCurrentIteration]: We unified 156 AI predicates to 156 [2019-09-10 02:51:15,040 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:51:15,041 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:51:15,041 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-09-10 02:51:15,041 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:51:15,042 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:51:15,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:51:15,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:51:15,043 INFO L87 Difference]: Start difference. First operand 676 states and 793 transitions. Second operand 2 states. [2019-09-10 02:51:15,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:15,043 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:51:15,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:51:15,043 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 157 [2019-09-10 02:51:15,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:15,044 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:51:15,044 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:51:15,044 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:51:15,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:51:15,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:51:15,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:51:15,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:51:15,045 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 157 [2019-09-10 02:51:15,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:15,045 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:51:15,045 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:51:15,045 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:51:15,046 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:51:15,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:51:15 BoogieIcfgContainer [2019-09-10 02:51:15,051 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:51:15,054 INFO L168 Benchmark]: Toolchain (without parser) took 7642.51 ms. Allocated memory was 135.3 MB in the beginning and 308.8 MB in the end (delta: 173.5 MB). Free memory was 90.5 MB in the beginning and 204.9 MB in the end (delta: -114.3 MB). Peak memory consumption was 59.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:51:15,054 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 135.3 MB. Free memory is still 109.5 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 02:51:15,055 INFO L168 Benchmark]: CACSL2BoogieTranslator took 748.50 ms. Allocated memory was 135.3 MB in the beginning and 202.4 MB in the end (delta: 67.1 MB). Free memory was 90.5 MB in the beginning and 167.4 MB in the end (delta: -76.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. [2019-09-10 02:51:15,056 INFO L168 Benchmark]: Boogie Preprocessor took 88.43 ms. Allocated memory is still 202.4 MB. Free memory was 166.6 MB in the beginning and 163.0 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. [2019-09-10 02:51:15,057 INFO L168 Benchmark]: RCFGBuilder took 1241.98 ms. Allocated memory was 202.4 MB in the beginning and 231.2 MB in the end (delta: 28.8 MB). Free memory was 163.0 MB in the beginning and 195.1 MB in the end (delta: -32.1 MB). Peak memory consumption was 85.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:51:15,058 INFO L168 Benchmark]: TraceAbstraction took 5559.43 ms. Allocated memory was 231.2 MB in the beginning and 308.8 MB in the end (delta: 77.6 MB). Free memory was 195.1 MB in the beginning and 204.9 MB in the end (delta: -9.8 MB). Peak memory consumption was 67.8 MB. Max. memory is 7.1 GB. [2019-09-10 02:51:15,062 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 135.3 MB. Free memory is still 109.5 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 748.50 ms. Allocated memory was 135.3 MB in the beginning and 202.4 MB in the end (delta: 67.1 MB). Free memory was 90.5 MB in the beginning and 167.4 MB in the end (delta: -76.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.43 ms. Allocated memory is still 202.4 MB. Free memory was 166.6 MB in the beginning and 163.0 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1241.98 ms. Allocated memory was 202.4 MB in the beginning and 231.2 MB in the end (delta: 28.8 MB). Free memory was 163.0 MB in the beginning and 195.1 MB in the end (delta: -32.1 MB). Peak memory consumption was 85.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5559.43 ms. Allocated memory was 231.2 MB in the beginning and 308.8 MB in the end (delta: 77.6 MB). Free memory was 195.1 MB in the beginning and 204.9 MB in the end (delta: -9.8 MB). Peak memory consumption was 67.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 428]: 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 42 procedures, 245 locations, 1 error locations. SAFE Result, 5.4s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 3.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1528 SDtfs, 1446 SDslu, 2712 SDs, 0 SdLazy, 1472 SolverSat, 618 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 254 GetRequests, 203 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=676occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.8461538461538461 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 119 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 893 NumberOfCodeBlocks, 893 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 883 ConstructedInterpolants, 0 QuantifiedInterpolants, 145277 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 62/69 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...