./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 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba712b52-8ec9-40f9-bb98-2bf260e8cfe6/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba712b52-8ec9-40f9-bb98-2bf260e8cfe6/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba712b52-8ec9-40f9-bb98-2bf260e8cfe6/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba712b52-8ec9-40f9-bb98-2bf260e8cfe6/bin/uautomizer-Z5i5R5N3CC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ldv-regression/stateful_check.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba712b52-8ec9-40f9-bb98-2bf260e8cfe6/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba712b52-8ec9-40f9-bb98-2bf260e8cfe6/bin/uautomizer-Z5i5R5N3CC --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 a342581b7572d5ebcb4a58d0a914c795d7fcf5cd ........................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-7b2dab5 [2021-10-11 00:22:32,626 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:22:32,628 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:22:32,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:22:32,657 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:22:32,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:22:32,661 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:22:32,663 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:22:32,666 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:22:32,667 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:22:32,668 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:22:32,670 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:22:32,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:22:32,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:22:32,673 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:22:32,675 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:22:32,676 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:22:32,677 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:22:32,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:22:32,682 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:22:32,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:22:32,685 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:22:32,687 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:22:32,688 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:22:32,692 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:22:32,692 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:22:32,693 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:22:32,694 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:22:32,695 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:22:32,696 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:22:32,696 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:22:32,697 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:22:32,699 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:22:32,700 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:22:32,701 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:22:32,702 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:22:32,703 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:22:32,703 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:22:32,704 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:22:32,705 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:22:32,706 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:22:32,707 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba712b52-8ec9-40f9-bb98-2bf260e8cfe6/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-11 00:22:32,731 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:22:32,732 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:22:32,733 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:22:32,734 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:22:32,734 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:22:32,734 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-11 00:22:32,735 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-11 00:22:32,735 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-11 00:22:32,735 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-11 00:22:32,735 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-11 00:22:32,736 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-11 00:22:32,736 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:22:32,736 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:22:32,737 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:22:32,737 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:22:32,737 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:22:32,738 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:22:32,738 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-11 00:22:32,738 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-11 00:22:32,738 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-11 00:22:32,739 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:22:32,739 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:22:32,739 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-11 00:22:32,739 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:22:32,740 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-11 00:22:32,740 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:22:32,740 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:22:32,741 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:22:32,741 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:22:32,741 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:22:32,742 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-11 00:22:32,742 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba712b52-8ec9-40f9-bb98-2bf260e8cfe6/bin/uautomizer-Z5i5R5N3CC/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba712b52-8ec9-40f9-bb98-2bf260e8cfe6/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a342581b7572d5ebcb4a58d0a914c795d7fcf5cd [2021-10-11 00:22:32,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:22:33,020 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:22:33,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:22:33,024 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:22:33,027 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:22:33,028 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba712b52-8ec9-40f9-bb98-2bf260e8cfe6/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/ldv-regression/stateful_check.c [2021-10-11 00:22:33,099 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba712b52-8ec9-40f9-bb98-2bf260e8cfe6/bin/uautomizer-Z5i5R5N3CC/data/6626bc96f/a7dea6332c2a4f5794881adc696132b6/FLAG0ef41fb99 [2021-10-11 00:22:33,601 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:22:33,601 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba712b52-8ec9-40f9-bb98-2bf260e8cfe6/sv-benchmarks/c/ldv-regression/stateful_check.c [2021-10-11 00:22:33,608 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba712b52-8ec9-40f9-bb98-2bf260e8cfe6/bin/uautomizer-Z5i5R5N3CC/data/6626bc96f/a7dea6332c2a4f5794881adc696132b6/FLAG0ef41fb99 [2021-10-11 00:22:33,968 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba712b52-8ec9-40f9-bb98-2bf260e8cfe6/bin/uautomizer-Z5i5R5N3CC/data/6626bc96f/a7dea6332c2a4f5794881adc696132b6 [2021-10-11 00:22:33,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:22:33,972 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:22:33,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:22:33,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:22:33,977 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:22:33,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:22:33" (1/1) ... [2021-10-11 00:22:33,980 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@185fba94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:33, skipping insertion in model container [2021-10-11 00:22:33,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:22:33" (1/1) ... [2021-10-11 00:22:33,987 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:22:34,004 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:22:34,134 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba712b52-8ec9-40f9-bb98-2bf260e8cfe6/sv-benchmarks/c/ldv-regression/stateful_check.c[298,311] [2021-10-11 00:22:34,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:22:34,194 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:22:34,205 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba712b52-8ec9-40f9-bb98-2bf260e8cfe6/sv-benchmarks/c/ldv-regression/stateful_check.c[298,311] [2021-10-11 00:22:34,214 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:22:34,231 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:22:34,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:34 WrapperNode [2021-10-11 00:22:34,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:22:34,234 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:22:34,234 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:22:34,234 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:22:34,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:34" (1/1) ... [2021-10-11 00:22:34,262 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:34" (1/1) ... [2021-10-11 00:22:34,304 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:22:34,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:22:34,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:22:34,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:22:34,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:34" (1/1) ... [2021-10-11 00:22:34,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:34" (1/1) ... [2021-10-11 00:22:34,331 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:34" (1/1) ... [2021-10-11 00:22:34,331 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:34" (1/1) ... [2021-10-11 00:22:34,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:34" (1/1) ... [2021-10-11 00:22:34,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:34" (1/1) ... [2021-10-11 00:22:34,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:34" (1/1) ... [2021-10-11 00:22:34,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:22:34,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:22:34,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:22:34,368 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:22:34,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:34" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba712b52-8ec9-40f9-bb98-2bf260e8cfe6/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:22:34,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:22:34,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:22:34,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:22:34,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:22:34,781 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:22:34,781 INFO L299 CfgBuilder]: Removed 35 assume(true) statements. [2021-10-11 00:22:34,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:22:34 BoogieIcfgContainer [2021-10-11 00:22:34,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:22:34,785 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-11 00:22:34,785 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-11 00:22:34,788 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-11 00:22:34,789 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:22:34,790 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 11.10 12:22:33" (1/3) ... [2021-10-11 00:22:34,791 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@20a875b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:22:34, skipping insertion in model container [2021-10-11 00:22:34,791 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:22:34,791 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:22:34" (2/3) ... [2021-10-11 00:22:34,792 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@20a875b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:22:34, skipping insertion in model container [2021-10-11 00:22:34,792 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:22:34,792 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:22:34" (3/3) ... [2021-10-11 00:22:34,793 INFO L389 chiAutomizerObserver]: Analyzing ICFG stateful_check.c [2021-10-11 00:22:34,843 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-11 00:22:34,843 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-11 00:22:34,843 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-11 00:22:34,843 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:22:34,843 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:22:34,844 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-11 00:22:34,844 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:22:34,844 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-11 00:22:34,858 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states. [2021-10-11 00:22:34,896 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 31 [2021-10-11 00:22:34,896 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:22:34,896 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:22:34,904 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-11 00:22:34,904 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-11 00:22:34,904 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-11 00:22:34,904 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states. [2021-10-11 00:22:34,924 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 31 [2021-10-11 00:22:34,924 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:22:34,924 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:22:34,925 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-11 00:22:34,925 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-11 00:22:34,932 INFO L794 eck$LassoCheckResult]: Stem: 35#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(17);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~ldv_mutex~0 := 1;~open_called~0 := 0; 11#L-1true havoc main_#res;havoc main_#t~ret8, main_#t~nondet10, main_#t~switch11, main_#t~ret12, main_#t~post13, main_#t~ret14, main_#t~post15, main_#t~ret16, main_#t~post17, main_#t~ret18, main_#t~nondet9, 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; 32#L72true main_#t~ret8 := my_init_#res;havoc main_#t~ret8; 17#L78-2true [2021-10-11 00:22:34,932 INFO L796 eck$LassoCheckResult]: Loop: 17#L78-2true assume !!(0 != main_#t~nondet9);havoc main_#t~nondet9;main_#t~switch11 := 0 == main_#t~nondet10; 9#L82true assume main_#t~switch11; 33#L83true assume !(0 == main_~ldv_s_misc_fops_file_operations~0); 5#L80true havoc main_#t~nondet10;havoc main_#t~switch11; 17#L78-2true [2021-10-11 00:22:34,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:22:34,938 INFO L82 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2021-10-11 00:22:34,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:22:34,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306618094] [2021-10-11 00:22:34,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:22:35,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:22:35,095 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:22:35,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:22:35,138 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:22:35,171 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:22:35,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:22:35,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1327177, now seen corresponding path program 1 times [2021-10-11 00:22:35,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:22:35,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404702841] [2021-10-11 00:22:35,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:22:35,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:22:35,200 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:22:35,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:22:35,206 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:22:35,212 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:22:35,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:22:35,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1804166377, now seen corresponding path program 1 times [2021-10-11 00:22:35,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:22:35,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258399905] [2021-10-11 00:22:35,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:22:35,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:22:35,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:22:35,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258399905] [2021-10-11 00:22:35,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:22:35,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:22:35,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403675545] [2021-10-11 00:22:35,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:22:35,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:22:35,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:22:35,479 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 3 states. [2021-10-11 00:22:35,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:22:35,592 INFO L93 Difference]: Finished difference Result 57 states and 73 transitions. [2021-10-11 00:22:35,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:22:35,595 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 73 transitions. [2021-10-11 00:22:35,608 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 38 [2021-10-11 00:22:35,614 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 41 states and 57 transitions. [2021-10-11 00:22:35,615 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2021-10-11 00:22:35,615 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2021-10-11 00:22:35,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 57 transitions. [2021-10-11 00:22:35,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:22:35,617 INFO L692 BuchiCegarLoop]: Abstraction has 41 states and 57 transitions. [2021-10-11 00:22:35,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 57 transitions. [2021-10-11 00:22:35,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-10-11 00:22:35,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2021-10-11 00:22:35,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 57 transitions. [2021-10-11 00:22:35,657 INFO L715 BuchiCegarLoop]: Abstraction has 41 states and 57 transitions. [2021-10-11 00:22:35,658 INFO L595 BuchiCegarLoop]: Abstraction has 41 states and 57 transitions. [2021-10-11 00:22:35,658 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-11 00:22:35,658 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 57 transitions. [2021-10-11 00:22:35,661 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 38 [2021-10-11 00:22:35,662 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:22:35,662 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:22:35,663 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-11 00:22:35,663 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-11 00:22:35,663 INFO L794 eck$LassoCheckResult]: Stem: 141#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(17);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~ldv_mutex~0 := 1;~open_called~0 := 0; 122#L-1 havoc main_#res;havoc main_#t~ret8, main_#t~nondet10, main_#t~switch11, main_#t~ret12, main_#t~post13, main_#t~ret14, main_#t~post15, main_#t~ret16, main_#t~post17, main_#t~ret18, main_#t~nondet9, 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; 123#L72 main_#t~ret8 := my_init_#res;havoc main_#t~ret8; 113#L78-2 [2021-10-11 00:22:35,664 INFO L796 eck$LassoCheckResult]: Loop: 113#L78-2 assume !!(0 != main_#t~nondet9);havoc main_#t~nondet9;main_#t~switch11 := 0 == main_#t~nondet10; 118#L82 assume !main_#t~switch11;main_#t~switch11 := main_#t~switch11 || 1 == main_#t~nondet10; 120#L90 assume main_#t~switch11; 117#L91 assume !(1 == main_~ldv_s_misc_fops_file_operations~0); 112#L80 havoc main_#t~nondet10;havoc main_#t~switch11; 113#L78-2 [2021-10-11 00:22:35,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:22:35,666 INFO L82 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 2 times [2021-10-11 00:22:35,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:22:35,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599315369] [2021-10-11 00:22:35,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:22:35,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:22:35,702 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:22:35,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:22:35,718 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:22:35,727 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:22:35,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:22:35,729 INFO L82 PathProgramCache]: Analyzing trace with hash 41592519, now seen corresponding path program 1 times [2021-10-11 00:22:35,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:22:35,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404167707] [2021-10-11 00:22:35,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:22:35,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:22:35,739 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:22:35,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:22:35,751 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:22:35,753 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:22:35,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:22:35,756 INFO L82 PathProgramCache]: Analyzing trace with hash 95032871, now seen corresponding path program 1 times [2021-10-11 00:22:35,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:22:35,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105894425] [2021-10-11 00:22:35,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:22:35,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:22:35,781 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:22:35,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:22:35,813 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:22:35,818 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:22:36,196 WARN L197 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2021-10-11 00:22:36,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 11.10 12:22:36 BoogieIcfgContainer [2021-10-11 00:22:36,330 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-11 00:22:36,331 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:22:36,331 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:22:36,331 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:22:36,332 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:22:34" (3/4) ... [2021-10-11 00:22:36,335 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-11 00:22:36,380 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba712b52-8ec9-40f9-bb98-2bf260e8cfe6/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:22:36,380 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:22:36,382 INFO L168 Benchmark]: Toolchain (without parser) took 2409.03 ms. Allocated memory was 102.8 MB in the beginning and 132.1 MB in the end (delta: 29.4 MB). Free memory was 73.9 MB in the beginning and 105.7 MB in the end (delta: -31.9 MB). Peak memory consumption was 47.8 MB. Max. memory is 16.1 GB. [2021-10-11 00:22:36,382 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 102.8 MB. Free memory is still 57.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:22:36,383 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.32 ms. Allocated memory was 102.8 MB in the beginning and 132.1 MB in the end (delta: 29.4 MB). Free memory was 73.6 MB in the beginning and 105.9 MB in the end (delta: -32.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:22:36,384 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.13 ms. Allocated memory is still 132.1 MB. Free memory was 105.9 MB in the beginning and 104.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:22:36,384 INFO L168 Benchmark]: Boogie Preprocessor took 53.53 ms. Allocated memory is still 132.1 MB. Free memory was 104.2 MB in the beginning and 103.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:22:36,385 INFO L168 Benchmark]: RCFGBuilder took 424.15 ms. Allocated memory is still 132.1 MB. Free memory was 103.0 MB in the beginning and 86.2 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-11 00:22:36,386 INFO L168 Benchmark]: BuchiAutomizer took 1545.50 ms. Allocated memory is still 132.1 MB. Free memory was 86.2 MB in the beginning and 57.2 MB in the end (delta: 29.0 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. [2021-10-11 00:22:36,387 INFO L168 Benchmark]: Witness Printer took 49.70 ms. Allocated memory is still 132.1 MB. Free memory was 57.2 MB in the beginning and 105.7 MB in the end (delta: -48.5 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:22:36,390 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 102.8 MB. Free memory is still 57.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 259.32 ms. Allocated memory was 102.8 MB in the beginning and 132.1 MB in the end (delta: 29.4 MB). Free memory was 73.6 MB in the beginning and 105.9 MB in the end (delta: -32.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 70.13 ms. Allocated memory is still 132.1 MB. Free memory was 105.9 MB in the beginning and 104.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.53 ms. Allocated memory is still 132.1 MB. Free memory was 104.2 MB in the beginning and 103.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 424.15 ms. Allocated memory is still 132.1 MB. Free memory was 103.0 MB in the beginning and 86.2 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1545.50 ms. Allocated memory is still 132.1 MB. Free memory was 86.2 MB in the beginning and 57.2 MB in the end (delta: 29.0 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. * Witness Printer took 49.70 ms. Allocated memory is still 132.1 MB. Free memory was 57.2 MB in the beginning and 105.7 MB in the end (delta: -48.5 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 1.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. 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: 78]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=8855} State at position 1 is {\result=0, NULL=8856, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52eeeeb4=0, NULL=0, \result=0, NULL=8855, ldv_mutex=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4589fe05=11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a79477=1, open_called=0, NULL=8857, ldv_s_misc_fops_file_operations=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57d32162=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43b0ab93=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ce9a27d=0, NULL=8858, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ff42714=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@24d3c23f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@57fb004c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@2308e6d7=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 78]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L11] int ldv_mutex = 1; [L13] int open_called = 0; [L76] int ldv_s_misc_fops_file_operations = 0; [L71] open_called = 0 [L72] return 0; Loop: [L78] COND TRUE __VERIFIER_nondet_int() [L82] case 0: [L90] case 1: [L91] COND FALSE !(ldv_s_misc_fops_file_operations==1) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...