./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 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c963012-412f-4a63-aaf7-a70cb99e2ef6/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c963012-412f-4a63-aaf7-a70cb99e2ef6/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c963012-412f-4a63-aaf7-a70cb99e2ef6/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c963012-412f-4a63-aaf7-a70cb99e2ef6/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ldv-regression/stateful_check.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c963012-412f-4a63-aaf7-a70cb99e2ef6/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c963012-412f-4a63-aaf7-a70cb99e2ef6/bin/uautomizer-uyxdKDjOR8 --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 86e7865b5c88aae342720e4dde014f366638a0b48b0e0f6e55acb2c675bcac3e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 18:06:17,193 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:06:17,195 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:06:17,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:06:17,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:06:17,214 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:06:17,215 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:06:17,216 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:06:17,218 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:06:17,218 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:06:17,219 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:06:17,220 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:06:17,221 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:06:17,222 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:06:17,223 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:06:17,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:06:17,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:06:17,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:06:17,226 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:06:17,228 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:06:17,229 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:06:17,230 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:06:17,231 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:06:17,232 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:06:17,235 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:06:17,236 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:06:17,236 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:06:17,237 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:06:17,237 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:06:17,238 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:06:17,238 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:06:17,239 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:06:17,240 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:06:17,240 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:06:17,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:06:17,241 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:06:17,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:06:17,242 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:06:17,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:06:17,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:06:17,244 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:06:17,244 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c963012-412f-4a63-aaf7-a70cb99e2ef6/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 18:06:17,265 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:06:17,265 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:06:17,265 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:06:17,265 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:06:17,266 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:06:17,267 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:06:17,267 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:06:17,267 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 18:06:17,267 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 18:06:17,267 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 18:06:17,267 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 18:06:17,268 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 18:06:17,268 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 18:06:17,268 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:06:17,268 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 18:06:17,268 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 18:06:17,268 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 18:06:17,269 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 18:06:17,269 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:06:17,269 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 18:06:17,269 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 18:06:17,269 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 18:06:17,269 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 18:06:17,269 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:06:17,270 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 18:06:17,270 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:06:17,270 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 18:06:17,270 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:06:17,270 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:06:17,270 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:06:17,271 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 18:06:17,271 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 18:06:17,272 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_3c963012-412f-4a63-aaf7-a70cb99e2ef6/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c963012-412f-4a63-aaf7-a70cb99e2ef6/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86e7865b5c88aae342720e4dde014f366638a0b48b0e0f6e55acb2c675bcac3e [2022-12-13 18:06:17,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:06:17,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:06:17,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:06:17,458 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:06:17,459 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:06:17,460 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c963012-412f-4a63-aaf7-a70cb99e2ef6/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/ldv-regression/stateful_check.c [2022-12-13 18:06:19,966 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:06:20,123 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:06:20,123 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c963012-412f-4a63-aaf7-a70cb99e2ef6/sv-benchmarks/c/ldv-regression/stateful_check.c [2022-12-13 18:06:20,128 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c963012-412f-4a63-aaf7-a70cb99e2ef6/bin/uautomizer-uyxdKDjOR8/data/43c84026f/8a8c56afeb5f4a4ea3435a1482341c2f/FLAG5feb0f59e [2022-12-13 18:06:20,546 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c963012-412f-4a63-aaf7-a70cb99e2ef6/bin/uautomizer-uyxdKDjOR8/data/43c84026f/8a8c56afeb5f4a4ea3435a1482341c2f [2022-12-13 18:06:20,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:06:20,550 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:06:20,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:06:20,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:06:20,554 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:06:20,555 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:06:20" (1/1) ... [2022-12-13 18:06:20,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62778103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:06:20, skipping insertion in model container [2022-12-13 18:06:20,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:06:20" (1/1) ... [2022-12-13 18:06:20,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:06:20,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:06:20,686 WARN L237 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_3c963012-412f-4a63-aaf7-a70cb99e2ef6/sv-benchmarks/c/ldv-regression/stateful_check.c[298,311] [2022-12-13 18:06:20,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:06:20,718 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:06:20,730 WARN L237 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_3c963012-412f-4a63-aaf7-a70cb99e2ef6/sv-benchmarks/c/ldv-regression/stateful_check.c[298,311] [2022-12-13 18:06:20,737 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:06:20,750 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:06:20,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:06:20 WrapperNode [2022-12-13 18:06:20,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:06:20,752 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:06:20,752 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:06:20,752 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:06:20,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:06:20" (1/1) ... [2022-12-13 18:06:20,766 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:06:20" (1/1) ... [2022-12-13 18:06:20,783 INFO L138 Inliner]: procedures = 21, calls = 20, calls flagged for inlining = 15, calls inlined = 17, statements flattened = 116 [2022-12-13 18:06:20,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:06:20,784 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:06:20,784 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:06:20,784 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:06:20,793 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:06:20" (1/1) ... [2022-12-13 18:06:20,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:06:20" (1/1) ... [2022-12-13 18:06:20,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:06:20" (1/1) ... [2022-12-13 18:06:20,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:06:20" (1/1) ... [2022-12-13 18:06:20,797 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:06:20" (1/1) ... [2022-12-13 18:06:20,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:06:20" (1/1) ... [2022-12-13 18:06:20,802 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:06:20" (1/1) ... [2022-12-13 18:06:20,803 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:06:20" (1/1) ... [2022-12-13 18:06:20,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:06:20,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:06:20,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:06:20,806 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:06:20,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:06:20" (1/1) ... [2022-12-13 18:06:20,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 18:06:20,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c963012-412f-4a63-aaf7-a70cb99e2ef6/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:06:20,831 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c963012-412f-4a63-aaf7-a70cb99e2ef6/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 18:06:20,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c963012-412f-4a63-aaf7-a70cb99e2ef6/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 18:06:20,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:06:20,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 18:06:20,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:06:20,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:06:20,913 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:06:20,914 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:06:21,031 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:06:21,035 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:06:21,036 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 18:06:21,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:06:21 BoogieIcfgContainer [2022-12-13 18:06:21,037 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:06:21,038 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 18:06:21,038 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 18:06:21,040 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 18:06:21,041 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 18:06:21,041 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 06:06:20" (1/3) ... [2022-12-13 18:06:21,042 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@755fbb3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 06:06:21, skipping insertion in model container [2022-12-13 18:06:21,042 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 18:06:21,042 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:06:20" (2/3) ... [2022-12-13 18:06:21,042 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@755fbb3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 06:06:21, skipping insertion in model container [2022-12-13 18:06:21,042 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 18:06:21,042 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:06:21" (3/3) ... [2022-12-13 18:06:21,043 INFO L332 chiAutomizerObserver]: Analyzing ICFG stateful_check.c [2022-12-13 18:06:21,096 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 18:06:21,096 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 18:06:21,096 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 18:06:21,096 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 18:06:21,096 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 18:06:21,096 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 18:06:21,097 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 18:06:21,097 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 18:06:21,103 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 49 states, 48 states have (on average 1.375) internal successors, (66), 48 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:06:21,123 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 38 [2022-12-13 18:06:21,123 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 18:06:21,123 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 18:06:21,129 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-12-13 18:06:21,130 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-12-13 18:06:21,130 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 18:06:21,130 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 49 states, 48 states have (on average 1.375) internal successors, (66), 48 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:06:21,133 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 38 [2022-12-13 18:06:21,133 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 18:06:21,133 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 18:06:21,134 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-12-13 18:06:21,134 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-12-13 18:06:21,141 INFO L748 eck$LassoCheckResult]: Stem: 23#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3);~ldv_mutex~0 := 1;~open_called~0 := 0; 28#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~nondet7#1, main_#t~switch8#1, main_#t~ret9#1, main_#t~post10#1, main_#t~ret11#1, main_#t~post12#1, main_#t~ret13#1, main_#t~post14#1, main_#t~ret15#1, main_#t~nondet6#1, main_~ldv_s_misc_fops_file_operations~0#1;main_~ldv_s_misc_fops_file_operations~0#1 := 0;assume { :begin_inline_my_init } true;havoc my_init_#res#1;~open_called~0 := 0;my_init_#res#1 := 0; 4#my_init_returnLabel#1true main_#t~ret5#1 := my_init_#res#1;assume { :end_inline_my_init } true;havoc main_#t~ret5#1; 34#L78-2true [2022-12-13 18:06:21,142 INFO L750 eck$LassoCheckResult]: Loop: 34#L78-2true assume !!(0 != main_#t~nondet6#1);havoc main_#t~nondet6#1;main_#t~switch8#1 := 0 == main_#t~nondet7#1; 16#L82true assume main_#t~switch8#1; 17#L83true assume !(0 == main_~ldv_s_misc_fops_file_operations~0#1); 12#L80true havoc main_#t~nondet7#1;havoc main_#t~switch8#1; 34#L78-2true [2022-12-13 18:06:21,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:06:21,148 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2022-12-13 18:06:21,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:06:21,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63239514] [2022-12-13 18:06:21,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:06:21,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:06:21,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:06:21,229 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 18:06:21,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:06:21,251 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 18:06:21,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:06:21,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1327184, now seen corresponding path program 1 times [2022-12-13 18:06:21,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:06:21,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955745743] [2022-12-13 18:06:21,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:06:21,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:06:21,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:06:21,260 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 18:06:21,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:06:21,264 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 18:06:21,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:06:21,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1804166384, now seen corresponding path program 1 times [2022-12-13 18:06:21,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:06:21,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450509483] [2022-12-13 18:06:21,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:06:21,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:06:21,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:06:21,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:06:21,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:06:21,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450509483] [2022-12-13 18:06:21,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450509483] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:06:21,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:06:21,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 18:06:21,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28752748] [2022-12-13 18:06:21,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:06:21,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:06:21,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:06:21,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:06:21,420 INFO L87 Difference]: Start difference. First operand has 49 states, 48 states have (on average 1.375) internal successors, (66), 48 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:06:21,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:06:21,454 INFO L93 Difference]: Finished difference Result 62 states and 78 transitions. [2022-12-13 18:06:21,455 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 78 transitions. [2022-12-13 18:06:21,457 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 41 [2022-12-13 18:06:21,459 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 44 states and 60 transitions. [2022-12-13 18:06:21,460 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2022-12-13 18:06:21,460 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2022-12-13 18:06:21,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 60 transitions. [2022-12-13 18:06:21,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:06:21,461 INFO L218 hiAutomatonCegarLoop]: Abstraction has 44 states and 60 transitions. [2022-12-13 18:06:21,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states and 60 transitions. [2022-12-13 18:06:21,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-12-13 18:06:21,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 44 states have (on average 1.3636363636363635) internal successors, (60), 43 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:06:21,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 60 transitions. [2022-12-13 18:06:21,481 INFO L240 hiAutomatonCegarLoop]: Abstraction has 44 states and 60 transitions. [2022-12-13 18:06:21,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:06:21,484 INFO L428 stractBuchiCegarLoop]: Abstraction has 44 states and 60 transitions. [2022-12-13 18:06:21,484 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 18:06:21,484 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states and 60 transitions. [2022-12-13 18:06:21,485 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 41 [2022-12-13 18:06:21,485 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 18:06:21,485 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 18:06:21,485 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-12-13 18:06:21,486 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-12-13 18:06:21,486 INFO L748 eck$LassoCheckResult]: Stem: 155#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3);~ldv_mutex~0 := 1;~open_called~0 := 0; 137#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~nondet7#1, main_#t~switch8#1, main_#t~ret9#1, main_#t~post10#1, main_#t~ret11#1, main_#t~post12#1, main_#t~ret13#1, main_#t~post14#1, main_#t~ret15#1, main_#t~nondet6#1, main_~ldv_s_misc_fops_file_operations~0#1;main_~ldv_s_misc_fops_file_operations~0#1 := 0;assume { :begin_inline_my_init } true;havoc my_init_#res#1;~open_called~0 := 0;my_init_#res#1 := 0; 131#my_init_returnLabel#1 main_#t~ret5#1 := my_init_#res#1;assume { :end_inline_my_init } true;havoc main_#t~ret5#1; 132#L78-2 [2022-12-13 18:06:21,486 INFO L750 eck$LassoCheckResult]: Loop: 132#L78-2 assume !!(0 != main_#t~nondet6#1);havoc main_#t~nondet6#1;main_#t~switch8#1 := 0 == main_#t~nondet7#1; 143#L82 assume !main_#t~switch8#1;main_#t~switch8#1 := main_#t~switch8#1 || 1 == main_#t~nondet7#1; 150#L90 assume main_#t~switch8#1; 151#L91 assume !(1 == main_~ldv_s_misc_fops_file_operations~0#1); 138#L80 havoc main_#t~nondet7#1;havoc main_#t~switch8#1; 132#L78-2 [2022-12-13 18:06:21,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:06:21,486 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 2 times [2022-12-13 18:06:21,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:06:21,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146831093] [2022-12-13 18:06:21,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:06:21,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:06:21,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:06:21,493 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 18:06:21,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:06:21,508 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 18:06:21,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:06:21,509 INFO L85 PathProgramCache]: Analyzing trace with hash 41592526, now seen corresponding path program 1 times [2022-12-13 18:06:21,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:06:21,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682557983] [2022-12-13 18:06:21,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:06:21,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:06:21,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:06:21,515 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 18:06:21,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:06:21,520 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 18:06:21,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:06:21,521 INFO L85 PathProgramCache]: Analyzing trace with hash 95032878, now seen corresponding path program 1 times [2022-12-13 18:06:21,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:06:21,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531616171] [2022-12-13 18:06:21,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:06:21,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:06:21,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:06:21,535 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 18:06:21,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:06:21,541 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 18:06:21,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:06:21,705 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 18:06:21,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:06:21,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 06:06:21 BoogieIcfgContainer [2022-12-13 18:06:21,738 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 18:06:21,738 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 18:06:21,738 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 18:06:21,738 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 18:06:21,739 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:06:21" (3/4) ... [2022-12-13 18:06:21,742 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-12-13 18:06:21,771 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c963012-412f-4a63-aaf7-a70cb99e2ef6/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 18:06:21,771 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 18:06:21,772 INFO L158 Benchmark]: Toolchain (without parser) took 1222.34ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 107.5MB in the beginning and 128.7MB in the end (delta: -21.3MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2022-12-13 18:06:21,772 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 144.7MB. Free memory is still 115.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:06:21,773 INFO L158 Benchmark]: CACSL2BoogieTranslator took 200.76ms. Allocated memory is still 144.7MB. Free memory was 107.0MB in the beginning and 96.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 18:06:21,773 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.49ms. Allocated memory is still 144.7MB. Free memory was 96.5MB in the beginning and 94.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:06:21,773 INFO L158 Benchmark]: Boogie Preprocessor took 20.65ms. Allocated memory is still 144.7MB. Free memory was 94.9MB in the beginning and 93.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:06:21,774 INFO L158 Benchmark]: RCFGBuilder took 231.63ms. Allocated memory is still 144.7MB. Free memory was 93.8MB in the beginning and 82.3MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 18:06:21,774 INFO L158 Benchmark]: BuchiAutomizer took 699.96ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 81.9MB in the beginning and 130.7MB in the end (delta: -48.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:06:21,774 INFO L158 Benchmark]: Witness Printer took 33.24ms. Allocated memory is still 174.1MB. Free memory was 130.7MB in the beginning and 128.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:06:21,776 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 144.7MB. Free memory is still 115.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 200.76ms. Allocated memory is still 144.7MB. Free memory was 107.0MB in the beginning and 96.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.49ms. Allocated memory is still 144.7MB. Free memory was 96.5MB in the beginning and 94.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.65ms. Allocated memory is still 144.7MB. Free memory was 94.9MB in the beginning and 93.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 231.63ms. Allocated memory is still 144.7MB. Free memory was 93.8MB in the beginning and 82.3MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 699.96ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 81.9MB in the beginning and 130.7MB in the end (delta: -48.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 33.24ms. Allocated memory is still 174.1MB. Free memory was 130.7MB in the beginning and 128.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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 44 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 89 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15 IncrementalHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 50 mSDtfsCounter, 15 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown 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 InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 78]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L11] int ldv_mutex = 1; [L13] int open_called = 0; VAL [ldv_mutex=1, open_called=0] [L76] int ldv_s_misc_fops_file_operations = 0; [L77] CALL my_init() [L71] open_called = 0 [L72] return 0; VAL [\result=0, ldv_mutex=1, open_called=0] [L77] RET my_init() 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. - 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; VAL [ldv_mutex=1, open_called=0] [L76] int ldv_s_misc_fops_file_operations = 0; [L77] CALL my_init() [L71] open_called = 0 [L72] return 0; VAL [\result=0, ldv_mutex=1, open_called=0] [L77] RET my_init() 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! [2022-12-13 18:06:21,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c963012-412f-4a63-aaf7-a70cb99e2ef6/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)