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_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:50:57,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:50:57,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:50:57,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:50:57,377 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:50:57,378 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:50:57,379 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:50:57,381 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:50:57,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:50:57,383 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:50:57,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:50:57,386 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:50:57,386 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:50:57,387 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:50:57,388 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:50:57,389 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:50:57,390 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:50:57,391 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:50:57,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:50:57,395 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:50:57,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:50:57,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:50:57,399 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:50:57,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:50:57,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:50:57,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:50:57,402 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:50:57,403 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:50:57,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:50:57,407 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:50:57,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:50:57,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:50:57,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:50:57,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:50:57,413 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:50:57,414 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:50:57,416 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:50:57,417 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:50:57,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:50:57,418 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:50:57,420 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:50:57,421 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 02:50:57,450 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:50:57,451 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:50:57,451 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:50:57,451 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:50:57,452 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:50:57,453 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:50:57,453 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:50:57,453 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:50:57,453 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:50:57,453 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:50:57,456 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:50:57,456 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:50:57,456 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:50:57,457 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:50:57,457 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:50:57,457 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:50:57,457 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:50:57,457 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:50:57,458 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:50:57,458 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:50:57,458 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:50:57,458 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:50:57,459 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:50:57,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:50:57,459 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:50:57,459 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:50:57,460 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:50:57,460 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:50:57,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:50:57,460 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:50:57,507 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:50:57,526 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:50:57,529 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:50:57,530 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:50:57,530 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:50:57,531 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product38.cil.c [2019-09-10 02:50:57,594 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/189c85f1d/c5f37c3cad974ae39c214e8ac525e0dc/FLAGf1a9a4091 [2019-09-10 02:50:58,146 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:50:58,147 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product38.cil.c [2019-09-10 02:50:58,165 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/189c85f1d/c5f37c3cad974ae39c214e8ac525e0dc/FLAGf1a9a4091 [2019-09-10 02:50:58,431 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/189c85f1d/c5f37c3cad974ae39c214e8ac525e0dc [2019-09-10 02:50:58,443 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:50:58,444 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:50:58,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:50:58,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:50:58,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:50:58,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:50:58" (1/1) ... [2019-09-10 02:50:58,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@270e4059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:58, skipping insertion in model container [2019-09-10 02:50:58,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:50:58" (1/1) ... [2019-09-10 02:50:58,461 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:50:58,522 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:50:58,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:50:58,993 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:50:59,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:50:59,124 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:50:59,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:59 WrapperNode [2019-09-10 02:50:59,124 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:50:59,125 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:50:59,125 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:50:59,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:50:59,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:59" (1/1) ... [2019-09-10 02:50:59,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:59" (1/1) ... [2019-09-10 02:50:59,157 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:59" (1/1) ... [2019-09-10 02:50:59,157 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:59" (1/1) ... [2019-09-10 02:50:59,200 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:59" (1/1) ... [2019-09-10 02:50:59,208 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:59" (1/1) ... [2019-09-10 02:50:59,213 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:59" (1/1) ... [2019-09-10 02:50:59,221 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:50:59,222 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:50:59,222 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:50:59,222 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:50:59,223 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:59" (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 02:50:59,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:50:59,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:50:59,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:50:59,329 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:50:59,329 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:50:59,329 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:50:59,329 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:50:59,330 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:50:59,330 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:50:59,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-09-10 02:50:59,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-09-10 02:50:59,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-09-10 02:50:59,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:50:59,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:50:59,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:50:59,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:50:59,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:50:59,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:50:59,334 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:50:59,334 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:50:59,335 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:50:59,335 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:50:59,335 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:50:59,335 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:50:59,335 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-10 02:50:59,337 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:50:59,337 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-10 02:50:59,337 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-10 02:50:59,337 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:50:59,338 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:50:59,338 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:50:59,338 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:50:59,338 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:50:59,338 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:50:59,339 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-10 02:50:59,339 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-10 02:50:59,339 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:50:59,339 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:50:59,339 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:50:59,340 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:50:59,340 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:50:59,340 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:50:59,341 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:50:59,341 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:50:59,341 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:50:59,341 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:50:59,341 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:50:59,342 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:50:59,342 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:50:59,342 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:50:59,342 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:50:59,342 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:50:59,342 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-09-10 02:50:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:50:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:50:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:50:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:50:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:50:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:50:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:50:59,344 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:50:59,344 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-09-10 02:50:59,344 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-09-10 02:50:59,344 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:50:59,345 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:50:59,345 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:50:59,345 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:50:59,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:50:59,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:50:59,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:50:59,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:50:59,346 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:50:59,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:50:59,347 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:50:59,347 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:50:59,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:50:59,347 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:50:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:50:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:50:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:50:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:50:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:50:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:50:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-10 02:50:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:50:59,351 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:50:59,352 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-10 02:50:59,352 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:50:59,352 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-10 02:50:59,352 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-10 02:50:59,352 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-10 02:50:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:50:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:50:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:50:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:50:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:51:00,694 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:51:00,694 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:51:00,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:51:00 BoogieIcfgContainer [2019-09-10 02:51:00,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:51:00,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:51:00,697 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:51:00,701 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:51:00,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:50:58" (1/3) ... [2019-09-10 02:51:00,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7264e03c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:51:00, skipping insertion in model container [2019-09-10 02:51:00,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:59" (2/3) ... [2019-09-10 02:51:00,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7264e03c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:51:00, skipping insertion in model container [2019-09-10 02:51:00,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:51:00" (3/3) ... [2019-09-10 02:51:00,705 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product38.cil.c [2019-09-10 02:51:00,716 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:51:00,725 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:51:00,744 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:51:00,775 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:51:00,775 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:51:00,775 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:51:00,776 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:51:00,776 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:51:00,776 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:51:00,776 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:51:00,777 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:51:00,798 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states. [2019-09-10 02:51:00,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-10 02:51:00,813 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:00,814 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 02:51:00,817 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:00,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:00,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1109188308, now seen corresponding path program 1 times [2019-09-10 02:51:00,825 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:00,887 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:00,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:00,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:00,888 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:01,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:01,232 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 02:51:01,234 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:51:01,235 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:51:01,235 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:51:01,242 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:51:01,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:51:01,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:51:01,260 INFO L87 Difference]: Start difference. First operand 183 states. Second operand 2 states. [2019-09-10 02:51:01,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:01,293 INFO L93 Difference]: Finished difference Result 151 states and 175 transitions. [2019-09-10 02:51:01,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:51:01,295 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2019-09-10 02:51:01,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:01,310 INFO L225 Difference]: With dead ends: 151 [2019-09-10 02:51:01,310 INFO L226 Difference]: Without dead ends: 140 [2019-09-10 02:51:01,312 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 02:51:01,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-09-10 02:51:01,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2019-09-10 02:51:01,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-09-10 02:51:01,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 163 transitions. [2019-09-10 02:51:01,377 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 163 transitions. Word has length 59 [2019-09-10 02:51:01,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:01,377 INFO L475 AbstractCegarLoop]: Abstraction has 140 states and 163 transitions. [2019-09-10 02:51:01,377 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:51:01,378 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 163 transitions. [2019-09-10 02:51:01,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-10 02:51:01,382 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:01,382 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] [2019-09-10 02:51:01,383 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:01,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:01,383 INFO L82 PathProgramCache]: Analyzing trace with hash 813843432, now seen corresponding path program 1 times [2019-09-10 02:51:01,384 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:01,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:01,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:01,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:01,386 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:01,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:01,542 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 02:51:01,543 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:51:01,543 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:51:01,543 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:51:01,547 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:51:01,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:51:01,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:51:01,548 INFO L87 Difference]: Start difference. First operand 140 states and 163 transitions. Second operand 3 states. [2019-09-10 02:51:01,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:01,578 INFO L93 Difference]: Finished difference Result 131 states and 151 transitions. [2019-09-10 02:51:01,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:51:01,579 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-09-10 02:51:01,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:01,586 INFO L225 Difference]: With dead ends: 131 [2019-09-10 02:51:01,587 INFO L226 Difference]: Without dead ends: 131 [2019-09-10 02:51:01,588 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 02:51:01,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-09-10 02:51:01,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2019-09-10 02:51:01,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-09-10 02:51:01,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 151 transitions. [2019-09-10 02:51:01,618 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 151 transitions. Word has length 60 [2019-09-10 02:51:01,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:01,619 INFO L475 AbstractCegarLoop]: Abstraction has 131 states and 151 transitions. [2019-09-10 02:51:01,619 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:51:01,619 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 151 transitions. [2019-09-10 02:51:01,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-10 02:51:01,626 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:01,626 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] [2019-09-10 02:51:01,627 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:01,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:01,630 INFO L82 PathProgramCache]: Analyzing trace with hash 605286682, now seen corresponding path program 1 times [2019-09-10 02:51:01,630 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:01,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:01,631 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:01,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:01,631 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:01,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:01,842 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 02:51:01,842 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:51:01,842 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:51:01,843 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:51:01,844 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:51:01,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:51:01,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:51:01,845 INFO L87 Difference]: Start difference. First operand 131 states and 151 transitions. Second operand 7 states. [2019-09-10 02:51:02,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:02,220 INFO L93 Difference]: Finished difference Result 131 states and 150 transitions. [2019-09-10 02:51:02,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:51:02,220 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2019-09-10 02:51:02,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:02,222 INFO L225 Difference]: With dead ends: 131 [2019-09-10 02:51:02,223 INFO L226 Difference]: Without dead ends: 131 [2019-09-10 02:51:02,223 INFO L628 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 [2019-09-10 02:51:02,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-09-10 02:51:02,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2019-09-10 02:51:02,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-09-10 02:51:02,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 150 transitions. [2019-09-10 02:51:02,234 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 150 transitions. Word has length 65 [2019-09-10 02:51:02,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:02,237 INFO L475 AbstractCegarLoop]: Abstraction has 131 states and 150 transitions. [2019-09-10 02:51:02,237 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:51:02,237 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 150 transitions. [2019-09-10 02:51:02,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-09-10 02:51:02,240 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:02,240 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] [2019-09-10 02:51:02,241 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:02,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:02,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1239264208, now seen corresponding path program 1 times [2019-09-10 02:51:02,241 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:02,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:02,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:02,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:02,243 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:02,427 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 02:51:02,428 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:51:02,428 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:51:02,428 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:51:02,431 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:51:02,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:51:02,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:51:02,431 INFO L87 Difference]: Start difference. First operand 131 states and 150 transitions. Second operand 5 states. [2019-09-10 02:51:02,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:02,989 INFO L93 Difference]: Finished difference Result 237 states and 275 transitions. [2019-09-10 02:51:02,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:51:02,990 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 78 [2019-09-10 02:51:02,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:02,995 INFO L225 Difference]: With dead ends: 237 [2019-09-10 02:51:02,995 INFO L226 Difference]: Without dead ends: 237 [2019-09-10 02:51:02,996 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 02:51:02,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2019-09-10 02:51:03,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 218. [2019-09-10 02:51:03,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2019-09-10 02:51:03,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 249 transitions. [2019-09-10 02:51:03,036 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 249 transitions. Word has length 78 [2019-09-10 02:51:03,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:03,040 INFO L475 AbstractCegarLoop]: Abstraction has 218 states and 249 transitions. [2019-09-10 02:51:03,040 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:51:03,040 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 249 transitions. [2019-09-10 02:51:03,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-09-10 02:51:03,046 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:03,046 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 02:51:03,046 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:03,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:03,047 INFO L82 PathProgramCache]: Analyzing trace with hash 462053503, now seen corresponding path program 1 times [2019-09-10 02:51:03,047 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:03,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:03,052 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:03,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:03,053 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:03,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:03,208 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 02:51:03,209 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:51:03,209 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:51:03,209 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:51:03,210 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:51:03,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:51:03,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:51:03,212 INFO L87 Difference]: Start difference. First operand 218 states and 249 transitions. Second operand 7 states. [2019-09-10 02:51:04,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:04,023 INFO L93 Difference]: Finished difference Result 236 states and 275 transitions. [2019-09-10 02:51:04,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-10 02:51:04,023 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 92 [2019-09-10 02:51:04,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:04,027 INFO L225 Difference]: With dead ends: 236 [2019-09-10 02:51:04,027 INFO L226 Difference]: Without dead ends: 236 [2019-09-10 02:51:04,028 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 02:51:04,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2019-09-10 02:51:04,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 217. [2019-09-10 02:51:04,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2019-09-10 02:51:04,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 246 transitions. [2019-09-10 02:51:04,041 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 246 transitions. Word has length 92 [2019-09-10 02:51:04,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:04,042 INFO L475 AbstractCegarLoop]: Abstraction has 217 states and 246 transitions. [2019-09-10 02:51:04,042 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:51:04,042 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 246 transitions. [2019-09-10 02:51:04,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-10 02:51:04,043 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:04,044 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] [2019-09-10 02:51:04,044 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:04,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:04,045 INFO L82 PathProgramCache]: Analyzing trace with hash -440444759, now seen corresponding path program 1 times [2019-09-10 02:51:04,045 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:04,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:04,046 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:04,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:04,046 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:04,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:04,138 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 02:51:04,138 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:51:04,139 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:51:04,139 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:51:04,141 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:51:04,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:51:04,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:51:04,142 INFO L87 Difference]: Start difference. First operand 217 states and 246 transitions. Second operand 6 states. [2019-09-10 02:51:04,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:04,172 INFO L93 Difference]: Finished difference Result 222 states and 251 transitions. [2019-09-10 02:51:04,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:51:04,174 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2019-09-10 02:51:04,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:04,177 INFO L225 Difference]: With dead ends: 222 [2019-09-10 02:51:04,177 INFO L226 Difference]: Without dead ends: 222 [2019-09-10 02:51:04,177 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 02:51:04,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2019-09-10 02:51:04,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2019-09-10 02:51:04,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2019-09-10 02:51:04,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 251 transitions. [2019-09-10 02:51:04,193 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 251 transitions. Word has length 93 [2019-09-10 02:51:04,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:04,193 INFO L475 AbstractCegarLoop]: Abstraction has 222 states and 251 transitions. [2019-09-10 02:51:04,193 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:51:04,193 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 251 transitions. [2019-09-10 02:51:04,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-10 02:51:04,195 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:04,195 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] [2019-09-10 02:51:04,195 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:04,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:04,196 INFO L82 PathProgramCache]: Analyzing trace with hash 261155115, now seen corresponding path program 1 times [2019-09-10 02:51:04,196 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:04,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:04,201 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:04,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:04,201 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:04,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:04,346 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 02:51:04,346 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:51:04,347 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 02:51:04,347 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:51:04,348 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:51:04,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:51:04,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:51:04,349 INFO L87 Difference]: Start difference. First operand 222 states and 251 transitions. Second operand 8 states. [2019-09-10 02:51:04,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:04,379 INFO L93 Difference]: Finished difference Result 229 states and 258 transitions. [2019-09-10 02:51:04,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:51:04,379 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 93 [2019-09-10 02:51:04,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:04,381 INFO L225 Difference]: With dead ends: 229 [2019-09-10 02:51:04,382 INFO L226 Difference]: Without dead ends: 229 [2019-09-10 02:51:04,382 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 02:51:04,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2019-09-10 02:51:04,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 226. [2019-09-10 02:51:04,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2019-09-10 02:51:04,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 255 transitions. [2019-09-10 02:51:04,392 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 255 transitions. Word has length 93 [2019-09-10 02:51:04,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:04,393 INFO L475 AbstractCegarLoop]: Abstraction has 226 states and 255 transitions. [2019-09-10 02:51:04,393 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:51:04,393 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 255 transitions. [2019-09-10 02:51:04,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-10 02:51:04,394 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:04,394 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] [2019-09-10 02:51:04,394 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:04,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:04,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1986636012, now seen corresponding path program 1 times [2019-09-10 02:51:04,395 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:04,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:04,396 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:04,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:04,396 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:04,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:04,465 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 02:51:04,465 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:51:04,465 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 02:51:04,466 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:51:04,466 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 02:51:04,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 02:51:04,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:51:04,467 INFO L87 Difference]: Start difference. First operand 226 states and 255 transitions. Second operand 4 states. [2019-09-10 02:51:04,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:04,728 INFO L93 Difference]: Finished difference Result 463 states and 543 transitions. [2019-09-10 02:51:04,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 02:51:04,729 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 93 [2019-09-10 02:51:04,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:04,732 INFO L225 Difference]: With dead ends: 463 [2019-09-10 02:51:04,732 INFO L226 Difference]: Without dead ends: 463 [2019-09-10 02:51:04,733 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 02:51:04,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2019-09-10 02:51:04,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 454. [2019-09-10 02:51:04,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 454 states. [2019-09-10 02:51:04,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 526 transitions. [2019-09-10 02:51:04,757 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 526 transitions. Word has length 93 [2019-09-10 02:51:04,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:04,758 INFO L475 AbstractCegarLoop]: Abstraction has 454 states and 526 transitions. [2019-09-10 02:51:04,758 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 02:51:04,758 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 526 transitions. [2019-09-10 02:51:04,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-09-10 02:51:04,759 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:04,760 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, 1] [2019-09-10 02:51:04,760 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:04,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:04,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1429929390, now seen corresponding path program 1 times [2019-09-10 02:51:04,760 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:04,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:04,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:04,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:04,762 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:04,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:04,962 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 02:51:04,962 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:51:04,962 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-09-10 02:51:04,962 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:51:04,963 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-10 02:51:04,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-10 02:51:04,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-09-10 02:51:04,964 INFO L87 Difference]: Start difference. First operand 454 states and 526 transitions. Second operand 11 states. [2019-09-10 02:51:05,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:05,926 INFO L93 Difference]: Finished difference Result 785 states and 923 transitions. [2019-09-10 02:51:05,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-10 02:51:05,927 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 97 [2019-09-10 02:51:05,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:05,932 INFO L225 Difference]: With dead ends: 785 [2019-09-10 02:51:05,933 INFO L226 Difference]: Without dead ends: 785 [2019-09-10 02:51:05,933 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2019-09-10 02:51:05,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2019-09-10 02:51:05,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 706. [2019-09-10 02:51:05,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2019-09-10 02:51:05,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 820 transitions. [2019-09-10 02:51:05,971 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 820 transitions. Word has length 97 [2019-09-10 02:51:05,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:05,972 INFO L475 AbstractCegarLoop]: Abstraction has 706 states and 820 transitions. [2019-09-10 02:51:05,972 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-10 02:51:05,972 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 820 transitions. [2019-09-10 02:51:05,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-09-10 02:51:05,975 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:05,976 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:51:05,976 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:05,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:05,976 INFO L82 PathProgramCache]: Analyzing trace with hash 1557984819, now seen corresponding path program 1 times [2019-09-10 02:51:05,977 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:05,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:05,978 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:05,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:05,978 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:06,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:06,142 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-09-10 02:51:06,143 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:51:06,143 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:51:06,144 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 158 with the following transitions: [2019-09-10 02:51:06,148 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [83], [99], [103], [104], [105], [108], [110], [116], [120], [123], [124], [125], [134], [138], [142], [145], [148], [150], [156], [158], [164], [167], [186], [187], [188], [189], [190], [192], [197], [199], [200], [204], [207], [211], [217], [244], [245], [248], [252], [255], [258], [260], [263], [270], [273], [276], [280], [281], [284], [285], [286], [288], [289], [290], [292], [295], [297], [300], [303], [312], [314], [315], [316], [340], [342], [343], [410], [411], [421], [429], [430], [431], [432], [433], [434], [435], [436], [437], [469], [470], [473], [474], [475], [476], [477], [478], [483], [484], [487], [488], [489], [490], [491], [492], [493], [494], [495], [496], [501], [502], [503], [504], [507], [508], [509], [510], [511], [512], [513], [514], [515], [519], [520], [521], [523], [524], [529], [530], [531] [2019-09-10 02:51:06,203 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:51:06,203 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:51:06,313 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:51:06,314 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 71 root evaluator evaluations with a maximum evaluation depth of 0. Performed 71 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 128 variables. [2019-09-10 02:51:06,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:06,319 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:51:06,379 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:51:06,379 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:51:06,384 INFO L420 sIntCurrentIteration]: We unified 156 AI predicates to 156 [2019-09-10 02:51:06,384 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:51:06,385 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:51:06,385 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-09-10 02:51:06,385 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:51:06,386 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:51:06,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:51:06,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:51:06,387 INFO L87 Difference]: Start difference. First operand 706 states and 820 transitions. Second operand 2 states. [2019-09-10 02:51:06,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:06,387 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:51:06,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:51:06,387 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 157 [2019-09-10 02:51:06,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:06,388 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:51:06,388 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:51:06,388 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 02:51:06,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:51:06,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:51:06,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:51:06,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:51:06,389 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 157 [2019-09-10 02:51:06,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:06,390 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:51:06,390 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:51:06,390 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:51:06,390 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:51:06,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:51:06 BoogieIcfgContainer [2019-09-10 02:51:06,395 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:51:06,397 INFO L168 Benchmark]: Toolchain (without parser) took 7952.37 ms. Allocated memory was 133.2 MB in the beginning and 323.5 MB in the end (delta: 190.3 MB). Free memory was 88.6 MB in the beginning and 239.2 MB in the end (delta: -150.6 MB). Peak memory consumption was 39.7 MB. Max. memory is 7.1 GB. [2019-09-10 02:51:06,398 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 133.2 MB. Free memory is still 107.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 02:51:06,399 INFO L168 Benchmark]: CACSL2BoogieTranslator took 679.68 ms. Allocated memory was 133.2 MB in the beginning and 198.7 MB in the end (delta: 65.5 MB). Free memory was 88.6 MB in the beginning and 162.9 MB in the end (delta: -74.3 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. [2019-09-10 02:51:06,400 INFO L168 Benchmark]: Boogie Preprocessor took 96.39 ms. Allocated memory is still 198.7 MB. Free memory was 162.9 MB in the beginning and 158.3 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2019-09-10 02:51:06,401 INFO L168 Benchmark]: RCFGBuilder took 1474.07 ms. Allocated memory was 198.7 MB in the beginning and 223.9 MB in the end (delta: 25.2 MB). Free memory was 158.3 MB in the beginning and 189.4 MB in the end (delta: -31.0 MB). Peak memory consumption was 87.8 MB. Max. memory is 7.1 GB. [2019-09-10 02:51:06,402 INFO L168 Benchmark]: TraceAbstraction took 5698.18 ms. Allocated memory was 223.9 MB in the beginning and 323.5 MB in the end (delta: 99.6 MB). Free memory was 189.4 MB in the beginning and 239.2 MB in the end (delta: -49.8 MB). Peak memory consumption was 49.8 MB. Max. memory is 7.1 GB. [2019-09-10 02:51:06,406 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 133.2 MB. Free memory is still 107.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 679.68 ms. Allocated memory was 133.2 MB in the beginning and 198.7 MB in the end (delta: 65.5 MB). Free memory was 88.6 MB in the beginning and 162.9 MB in the end (delta: -74.3 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 96.39 ms. Allocated memory is still 198.7 MB. Free memory was 162.9 MB in the beginning and 158.3 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1474.07 ms. Allocated memory was 198.7 MB in the beginning and 223.9 MB in the end (delta: 25.2 MB). Free memory was 158.3 MB in the beginning and 189.4 MB in the end (delta: -31.0 MB). Peak memory consumption was 87.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5698.18 ms. Allocated memory was 223.9 MB in the beginning and 323.5 MB in the end (delta: 99.6 MB). Free memory was 189.4 MB in the beginning and 239.2 MB in the end (delta: -49.8 MB). Peak memory consumption was 49.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: 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 41 procedures, 239 locations, 1 error locations. SAFE Result, 5.6s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 3.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1531 SDtfs, 1217 SDslu, 3059 SDs, 0 SdLazy, 1637 SolverSat, 483 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 264 GetRequests, 205 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred 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, 0.8333333333333334 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 129 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 887 NumberOfCodeBlocks, 887 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 877 ConstructedInterpolants, 0 QuantifiedInterpolants, 144490 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 63/70 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...