./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/ldv-regression/stateful_check.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1846daef-9f55-492b-a565-94f134dd27a9/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1846daef-9f55-492b-a565-94f134dd27a9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1846daef-9f55-492b-a565-94f134dd27a9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1846daef-9f55-492b-a565-94f134dd27a9/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ldv-regression/stateful_check.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1846daef-9f55-492b-a565-94f134dd27a9/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1846daef-9f55-492b-a565-94f134dd27a9/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1225f82562543767c482452e9133e4a69d5dae70 ..................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:19:11,210 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:19:11,211 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:19:11,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:19:11,219 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:19:11,220 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:19:11,220 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:19:11,222 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:19:11,223 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:19:11,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:19:11,224 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:19:11,225 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:19:11,225 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:19:11,226 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:19:11,226 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:19:11,227 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:19:11,228 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:19:11,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:19:11,230 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:19:11,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:19:11,232 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:19:11,233 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:19:11,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:19:11,234 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:19:11,236 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:19:11,236 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:19:11,236 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:19:11,237 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:19:11,237 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:19:11,237 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:19:11,237 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:19:11,238 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:19:11,238 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:19:11,239 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:19:11,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:19:11,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:19:11,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:19:11,240 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:19:11,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:19:11,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:19:11,241 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:19:11,241 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1846daef-9f55-492b-a565-94f134dd27a9/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 18:19:11,253 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:19:11,253 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:19:11,254 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:19:11,254 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:19:11,254 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:19:11,254 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 18:19:11,254 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 18:19:11,254 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 18:19:11,254 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 18:19:11,255 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 18:19:11,255 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 18:19:11,255 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:19:11,255 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:19:11,255 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:19:11,255 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:19:11,255 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:19:11,256 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:19:11,256 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 18:19:11,256 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 18:19:11,256 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 18:19:11,256 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:19:11,256 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:19:11,256 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 18:19:11,256 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:19:11,256 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 18:19:11,257 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:19:11,257 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:19:11,257 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 18:19:11,257 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:19:11,257 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:19:11,257 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:19:11,257 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 18:19:11,258 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 18:19:11,258 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1846daef-9f55-492b-a565-94f134dd27a9/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1225f82562543767c482452e9133e4a69d5dae70 [2019-12-07 18:19:11,351 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:19:11,359 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:19:11,361 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:19:11,362 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:19:11,362 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:19:11,363 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1846daef-9f55-492b-a565-94f134dd27a9/bin/uautomizer/../../sv-benchmarks/c/ldv-regression/stateful_check.c [2019-12-07 18:19:11,403 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1846daef-9f55-492b-a565-94f134dd27a9/bin/uautomizer/data/8fd38e1bf/8068d264739c40f986cfe7beea459195/FLAGb38625c77 [2019-12-07 18:19:11,717 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:19:11,718 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1846daef-9f55-492b-a565-94f134dd27a9/sv-benchmarks/c/ldv-regression/stateful_check.c [2019-12-07 18:19:11,722 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1846daef-9f55-492b-a565-94f134dd27a9/bin/uautomizer/data/8fd38e1bf/8068d264739c40f986cfe7beea459195/FLAGb38625c77 [2019-12-07 18:19:12,156 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1846daef-9f55-492b-a565-94f134dd27a9/bin/uautomizer/data/8fd38e1bf/8068d264739c40f986cfe7beea459195 [2019-12-07 18:19:12,158 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:19:12,159 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:19:12,160 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:19:12,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:19:12,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:19:12,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:19:12" (1/1) ... [2019-12-07 18:19:12,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a6e5914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:12, skipping insertion in model container [2019-12-07 18:19:12,167 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:19:12" (1/1) ... [2019-12-07 18:19:12,172 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:19:12,184 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:19:12,287 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:19:12,290 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:19:12,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:19:12,347 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:19:12,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:12 WrapperNode [2019-12-07 18:19:12,348 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:19:12,348 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:19:12,349 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:19:12,349 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:19:12,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:12" (1/1) ... [2019-12-07 18:19:12,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:12" (1/1) ... [2019-12-07 18:19:12,375 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:19:12,375 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:19:12,375 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:19:12,376 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:19:12,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:12" (1/1) ... [2019-12-07 18:19:12,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:12" (1/1) ... [2019-12-07 18:19:12,382 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:12" (1/1) ... [2019-12-07 18:19:12,383 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:12" (1/1) ... [2019-12-07 18:19:12,385 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:12" (1/1) ... [2019-12-07 18:19:12,390 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:12" (1/1) ... [2019-12-07 18:19:12,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:12" (1/1) ... [2019-12-07 18:19:12,393 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:19:12,393 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:19:12,393 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:19:12,393 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:19:12,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1846daef-9f55-492b-a565-94f134dd27a9/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:19:12,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:19:12,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:19:12,605 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:19:12,605 INFO L287 CfgBuilder]: Removed 35 assume(true) statements. [2019-12-07 18:19:12,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:19:12 BoogieIcfgContainer [2019-12-07 18:19:12,606 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:19:12,606 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 18:19:12,606 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 18:19:12,608 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 18:19:12,609 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:19:12,609 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 06:19:12" (1/3) ... [2019-12-07 18:19:12,610 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21909dc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:19:12, skipping insertion in model container [2019-12-07 18:19:12,610 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:19:12,610 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:19:12" (2/3) ... [2019-12-07 18:19:12,610 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21909dc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:19:12, skipping insertion in model container [2019-12-07 18:19:12,610 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:19:12,610 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:19:12" (3/3) ... [2019-12-07 18:19:12,611 INFO L371 chiAutomizerObserver]: Analyzing ICFG stateful_check.c [2019-12-07 18:19:12,640 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 18:19:12,640 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 18:19:12,640 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 18:19:12,640 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:19:12,640 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:19:12,640 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 18:19:12,640 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:19:12,641 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 18:19:12,652 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states. [2019-12-07 18:19:12,667 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 31 [2019-12-07 18:19:12,667 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:19:12,667 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:19:12,672 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-12-07 18:19:12,672 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-12-07 18:19:12,672 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 18:19:12,673 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states. [2019-12-07 18:19:12,675 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 31 [2019-12-07 18:19:12,675 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:19:12,675 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:19:12,675 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-12-07 18:19:12,675 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-12-07 18:19:12,680 INFO L794 eck$LassoCheckResult]: Stem: 33#ULTIMATE.startENTRYtrue ~ldv_mutex~0 := 1;~open_called~0 := 0; 8#L-1true havoc main_#res;havoc main_#t~ret1, main_#t~nondet3, main_#t~switch4, main_#t~ret5, main_#t~post6, main_#t~ret7, main_#t~post8, main_#t~ret9, main_#t~post10, main_#t~ret11, main_#t~nondet2, main_~ldv_s_misc_fops_file_operations~0;main_~ldv_s_misc_fops_file_operations~0 := 0;havoc my_init_#res;~open_called~0 := 0;my_init_#res := 0; 27#L70true main_#t~ret1 := my_init_#res;havoc main_#t~ret1; 10#L76-2true [2019-12-07 18:19:12,680 INFO L796 eck$LassoCheckResult]: Loop: 10#L76-2true assume !!(0 != main_#t~nondet2);havoc main_#t~nondet2;main_#t~switch4 := 0 == main_#t~nondet3; 3#L80true assume main_#t~switch4; 28#L81true assume !(0 == main_~ldv_s_misc_fops_file_operations~0); 21#L78true havoc main_#t~nondet3;havoc main_#t~switch4; 10#L76-2true [2019-12-07 18:19:12,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:19:12,685 INFO L82 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2019-12-07 18:19:12,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:19:12,690 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069756536] [2019-12-07 18:19:12,690 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:19:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:19:12,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:19:12,754 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:19:12,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:19:12,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1327177, now seen corresponding path program 1 times [2019-12-07 18:19:12,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:19:12,756 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001797925] [2019-12-07 18:19:12,756 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:19:12,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:19:12,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:19:12,762 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:19:12,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:19:12,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1804166377, now seen corresponding path program 1 times [2019-12-07 18:19:12,764 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:19:12,764 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890449931] [2019-12-07 18:19:12,764 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:19:12,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:19:12,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:19:12,797 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890449931] [2019-12-07 18:19:12,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:19:12,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:19:12,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752827087] [2019-12-07 18:19:12,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:19:12,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:19:12,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:19:12,858 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 3 states. [2019-12-07 18:19:12,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:19:12,894 INFO L93 Difference]: Finished difference Result 57 states and 73 transitions. [2019-12-07 18:19:12,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:19:12,895 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 73 transitions. [2019-12-07 18:19:12,898 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 38 [2019-12-07 18:19:12,901 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 41 states and 57 transitions. [2019-12-07 18:19:12,901 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2019-12-07 18:19:12,902 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2019-12-07 18:19:12,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 57 transitions. [2019-12-07 18:19:12,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:19:12,903 INFO L688 BuchiCegarLoop]: Abstraction has 41 states and 57 transitions. [2019-12-07 18:19:12,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 57 transitions. [2019-12-07 18:19:12,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-12-07 18:19:12,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-12-07 18:19:12,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 57 transitions. [2019-12-07 18:19:12,923 INFO L711 BuchiCegarLoop]: Abstraction has 41 states and 57 transitions. [2019-12-07 18:19:12,923 INFO L591 BuchiCegarLoop]: Abstraction has 41 states and 57 transitions. [2019-12-07 18:19:12,923 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 18:19:12,923 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 57 transitions. [2019-12-07 18:19:12,924 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 38 [2019-12-07 18:19:12,924 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:19:12,924 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:19:12,924 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-12-07 18:19:12,924 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-12-07 18:19:12,924 INFO L794 eck$LassoCheckResult]: Stem: 142#ULTIMATE.startENTRY ~ldv_mutex~0 := 1;~open_called~0 := 0; 120#L-1 havoc main_#res;havoc main_#t~ret1, main_#t~nondet3, main_#t~switch4, main_#t~ret5, main_#t~post6, main_#t~ret7, main_#t~post8, main_#t~ret9, main_#t~post10, main_#t~ret11, main_#t~nondet2, main_~ldv_s_misc_fops_file_operations~0;main_~ldv_s_misc_fops_file_operations~0 := 0;havoc my_init_#res;~open_called~0 := 0;my_init_#res := 0; 121#L70 main_#t~ret1 := my_init_#res;havoc main_#t~ret1; 138#L76-2 [2019-12-07 18:19:12,924 INFO L796 eck$LassoCheckResult]: Loop: 138#L76-2 assume !!(0 != main_#t~nondet2);havoc main_#t~nondet2;main_#t~switch4 := 0 == main_#t~nondet3; 147#L80 assume !main_#t~switch4;main_#t~switch4 := main_#t~switch4 || 1 == main_#t~nondet3; 145#L88 assume main_#t~switch4; 146#L89 assume !(1 == main_~ldv_s_misc_fops_file_operations~0); 141#L78 havoc main_#t~nondet3;havoc main_#t~switch4; 138#L76-2 [2019-12-07 18:19:12,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:19:12,925 INFO L82 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 2 times [2019-12-07 18:19:12,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:19:12,925 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775088180] [2019-12-07 18:19:12,925 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:19:12,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:19:12,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:19:12,931 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:19:12,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:19:12,931 INFO L82 PathProgramCache]: Analyzing trace with hash 41592519, now seen corresponding path program 1 times [2019-12-07 18:19:12,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:19:12,931 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418817175] [2019-12-07 18:19:12,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:19:12,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:19:12,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:19:12,938 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:19:12,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:19:12,938 INFO L82 PathProgramCache]: Analyzing trace with hash 95032871, now seen corresponding path program 1 times [2019-12-07 18:19:12,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:19:12,938 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280659458] [2019-12-07 18:19:12,938 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:19:12,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:19:12,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:19:12,947 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:19:13,007 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-12-07 18:19:13,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 06:19:13 BoogieIcfgContainer [2019-12-07 18:19:13,015 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 18:19:13,015 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:19:13,015 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:19:13,015 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:19:13,016 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:19:12" (3/4) ... [2019-12-07 18:19:13,018 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 18:19:13,048 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1846daef-9f55-492b-a565-94f134dd27a9/bin/uautomizer/witness.graphml [2019-12-07 18:19:13,048 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:19:13,050 INFO L168 Benchmark]: Toolchain (without parser) took 889.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 938.1 MB in the beginning and 1.0 GB in the end (delta: -73.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:19:13,050 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:19:13,051 INFO L168 Benchmark]: CACSL2BoogieTranslator took 187.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -152.7 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 18:19:13,051 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.73 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:19:13,052 INFO L168 Benchmark]: Boogie Preprocessor took 17.55 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:19:13,052 INFO L168 Benchmark]: RCFGBuilder took 212.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:19:13,053 INFO L168 Benchmark]: BuchiAutomizer took 408.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 53.7 MB). Peak memory consumption was 53.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:19:13,053 INFO L168 Benchmark]: Witness Printer took 32.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:19:13,056 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 187.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -152.7 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.73 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.55 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 212.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 408.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 53.7 MB). Peak memory consumption was 53.7 MB. Max. memory is 11.5 GB. * Witness Printer took 32.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 41 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 41 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 46 SDtfs, 22 SDslu, 35 SDs, 0 SdLazy, 15 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 76]: Nontermination argument in form of an infinite program execution. [2019-12-07 18:19:13,062 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-12-07 18:19:13,063 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {\result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36ff3c91=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@425fb971=0, \result=0, ldv_mutex=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2adfee60=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@2623325=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59b91f12=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@4bf1fbf1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d0217b1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@507ae4d0=1, NULL=0, open_called=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1099fc86=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@451d1069=0, ldv_s_misc_fops_file_operations=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 76]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L9] int ldv_mutex = 1; [L11] int open_called = 0; [L74] int ldv_s_misc_fops_file_operations = 0; [L69] open_called = 0 [L70] return 0; Loop: [L76] COND TRUE __VERIFIER_nondet_int() [L80] case 0: [L88] case 1: [L89] COND FALSE !(ldv_s_misc_fops_file_operations==1) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...