./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/mutex_lock_struct.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844bb305-d8a6-4c2c-b745-568e592cc1bf/bin/ukojak-d1pc8ZmBRL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844bb305-d8a6-4c2c-b745-568e592cc1bf/bin/ukojak-d1pc8ZmBRL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844bb305-d8a6-4c2c-b745-568e592cc1bf/bin/ukojak-d1pc8ZmBRL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844bb305-d8a6-4c2c-b745-568e592cc1bf/bin/ukojak-d1pc8ZmBRL/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/mutex_lock_struct.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844bb305-d8a6-4c2c-b745-568e592cc1bf/bin/ukojak-d1pc8ZmBRL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844bb305-d8a6-4c2c-b745-568e592cc1bf/bin/ukojak-d1pc8ZmBRL --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 608a161795639c070a2e0dd9cb77ec327f896e40581ac2ba975f6275c137af77 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 07:37:02,238 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 07:37:02,242 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 07:37:02,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 07:37:02,315 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 07:37:02,319 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 07:37:02,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 07:37:02,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 07:37:02,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 07:37:02,335 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 07:37:02,336 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 07:37:02,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 07:37:02,338 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 07:37:02,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 07:37:02,343 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 07:37:02,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 07:37:02,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 07:37:02,350 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 07:37:02,352 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 07:37:02,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 07:37:02,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 07:37:02,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 07:37:02,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 07:37:02,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 07:37:02,376 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 07:37:02,376 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 07:37:02,376 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 07:37:02,379 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 07:37:02,379 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 07:37:02,381 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 07:37:02,381 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 07:37:02,382 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 07:37:02,384 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 07:37:02,385 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 07:37:02,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 07:37:02,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 07:37:02,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 07:37:02,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 07:37:02,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 07:37:02,390 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 07:37:02,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 07:37:02,391 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844bb305-d8a6-4c2c-b745-568e592cc1bf/bin/ukojak-d1pc8ZmBRL/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-25 07:37:02,437 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 07:37:02,437 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 07:37:02,439 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 07:37:02,439 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-25 07:37:02,440 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-25 07:37:02,440 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-25 07:37:02,441 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 07:37:02,441 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 07:37:02,441 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 07:37:02,441 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 07:37:02,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 07:37:02,443 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 07:37:02,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 07:37:02,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 07:37:02,443 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 07:37:02,444 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 07:37:02,444 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 07:37:02,444 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 07:37:02,444 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-25 07:37:02,444 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-25 07:37:02,445 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 07:37:02,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-25 07:37:02,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 07:37:02,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 07:37:02,446 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 07:37:02,446 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-25 07:37:02,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 07:37:02,446 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 07:37:02,446 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_844bb305-d8a6-4c2c-b745-568e592cc1bf/bin/ukojak-d1pc8ZmBRL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844bb305-d8a6-4c2c-b745-568e592cc1bf/bin/ukojak-d1pc8ZmBRL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 608a161795639c070a2e0dd9cb77ec327f896e40581ac2ba975f6275c137af77 [2021-11-25 07:37:02,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 07:37:02,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 07:37:02,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 07:37:02,838 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 07:37:02,839 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 07:37:02,841 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844bb305-d8a6-4c2c-b745-568e592cc1bf/bin/ukojak-d1pc8ZmBRL/../../sv-benchmarks/c/ldv-regression/mutex_lock_struct.i [2021-11-25 07:37:02,939 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844bb305-d8a6-4c2c-b745-568e592cc1bf/bin/ukojak-d1pc8ZmBRL/data/99db2d251/df8ab969c11144d1877a9095bd92eaf0/FLAGfb93f3149 [2021-11-25 07:37:03,548 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 07:37:03,550 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844bb305-d8a6-4c2c-b745-568e592cc1bf/sv-benchmarks/c/ldv-regression/mutex_lock_struct.i [2021-11-25 07:37:03,561 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844bb305-d8a6-4c2c-b745-568e592cc1bf/bin/ukojak-d1pc8ZmBRL/data/99db2d251/df8ab969c11144d1877a9095bd92eaf0/FLAGfb93f3149 [2021-11-25 07:37:03,903 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844bb305-d8a6-4c2c-b745-568e592cc1bf/bin/ukojak-d1pc8ZmBRL/data/99db2d251/df8ab969c11144d1877a9095bd92eaf0 [2021-11-25 07:37:03,906 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 07:37:03,908 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 07:37:03,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 07:37:03,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 07:37:03,915 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 07:37:03,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:37:03" (1/1) ... [2021-11-25 07:37:03,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e8fe9b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:03, skipping insertion in model container [2021-11-25 07:37:03,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:37:03" (1/1) ... [2021-11-25 07:37:03,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 07:37:03,942 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 07:37:04,189 WARN L230 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_844bb305-d8a6-4c2c-b745-568e592cc1bf/sv-benchmarks/c/ldv-regression/mutex_lock_struct.i[295,308] [2021-11-25 07:37:04,207 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 07:37:04,223 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 07:37:04,236 WARN L230 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_844bb305-d8a6-4c2c-b745-568e592cc1bf/sv-benchmarks/c/ldv-regression/mutex_lock_struct.i[295,308] [2021-11-25 07:37:04,241 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 07:37:04,258 INFO L208 MainTranslator]: Completed translation [2021-11-25 07:37:04,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:04 WrapperNode [2021-11-25 07:37:04,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 07:37:04,260 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 07:37:04,261 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 07:37:04,263 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 07:37:04,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:04" (1/1) ... [2021-11-25 07:37:04,278 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:04" (1/1) ... [2021-11-25 07:37:04,296 INFO L137 Inliner]: procedures = 15, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2021-11-25 07:37:04,296 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 07:37:04,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 07:37:04,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 07:37:04,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 07:37:04,305 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:04" (1/1) ... [2021-11-25 07:37:04,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:04" (1/1) ... [2021-11-25 07:37:04,317 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:04" (1/1) ... [2021-11-25 07:37:04,317 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:04" (1/1) ... [2021-11-25 07:37:04,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:04" (1/1) ... [2021-11-25 07:37:04,326 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:04" (1/1) ... [2021-11-25 07:37:04,331 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:04" (1/1) ... [2021-11-25 07:37:04,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 07:37:04,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 07:37:04,336 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 07:37:04,337 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 07:37:04,338 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:37:04" (1/1) ... [2021-11-25 07:37:04,345 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-25 07:37:04,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844bb305-d8a6-4c2c-b745-568e592cc1bf/bin/ukojak-d1pc8ZmBRL/z3 [2021-11-25 07:37:04,375 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844bb305-d8a6-4c2c-b745-568e592cc1bf/bin/ukojak-d1pc8ZmBRL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-25 07:37:04,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844bb305-d8a6-4c2c-b745-568e592cc1bf/bin/ukojak-d1pc8ZmBRL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-25 07:37:04,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 07:37:04,427 INFO L130 BoogieDeclarations]: Found specification of procedure err [2021-11-25 07:37:04,427 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2021-11-25 07:37:04,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 07:37:04,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 07:37:04,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 07:37:04,429 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-25 07:37:04,429 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-25 07:37:04,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 07:37:04,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 07:37:04,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 07:37:04,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 07:37:04,509 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 07:37:04,512 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 07:37:04,652 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 07:37:04,673 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 07:37:04,673 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 07:37:04,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:37:04 BoogieIcfgContainer [2021-11-25 07:37:04,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 07:37:04,678 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-25 07:37:04,678 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-25 07:37:04,689 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-25 07:37:04,690 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:37:04" (1/1) ... [2021-11-25 07:37:04,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 07:37:04,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:37:04,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2021-11-25 07:37:04,793 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2021-11-25 07:37:04,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-25 07:37:04,795 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:37:04,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:37:04,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 07:37:05,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 07:37:05,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:37:05,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 15 transitions. [2021-11-25 07:37:05,228 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2021-11-25 07:37:05,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-25 07:37:05,233 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:37:05,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:37:05,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 07:37:05,282 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 07:37:05,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 07:37:05,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 07:37:05,394 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 07:37:05,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 07:37:05,433 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2021-11-25 07:37:05,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 07:37:05 ImpRootNode [2021-11-25 07:37:05,481 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-25 07:37:05,482 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 07:37:05,482 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 07:37:05,483 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 07:37:05,483 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:37:04" (3/4) ... [2021-11-25 07:37:05,485 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-25 07:37:05,545 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844bb305-d8a6-4c2c-b745-568e592cc1bf/bin/ukojak-d1pc8ZmBRL/witness.graphml [2021-11-25 07:37:05,546 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 07:37:05,547 INFO L158 Benchmark]: Toolchain (without parser) took 1638.45ms. Allocated memory is still 96.5MB. Free memory was 55.9MB in the beginning and 39.0MB in the end (delta: 16.9MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2021-11-25 07:37:05,551 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 96.5MB. Free memory is still 71.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 07:37:05,554 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.23ms. Allocated memory is still 96.5MB. Free memory was 55.7MB in the beginning and 71.9MB in the end (delta: -16.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-25 07:37:05,555 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.66ms. Allocated memory is still 96.5MB. Free memory was 71.9MB in the beginning and 70.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 07:37:05,556 INFO L158 Benchmark]: Boogie Preprocessor took 38.10ms. Allocated memory is still 96.5MB. Free memory was 70.7MB in the beginning and 69.7MB in the end (delta: 973.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 07:37:05,557 INFO L158 Benchmark]: RCFGBuilder took 341.03ms. Allocated memory is still 96.5MB. Free memory was 69.4MB in the beginning and 60.5MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-25 07:37:05,558 INFO L158 Benchmark]: CodeCheck took 802.84ms. Allocated memory is still 96.5MB. Free memory was 60.2MB in the beginning and 41.0MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-25 07:37:05,559 INFO L158 Benchmark]: Witness Printer took 64.32ms. Allocated memory is still 96.5MB. Free memory was 40.7MB in the beginning and 39.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 07:37:05,568 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 7 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L35] struct mutex m; [L36] m.is_locked = 0 VAL [m={2439:0}] [L38] CALL mutex_lock(&m) VAL [a={2439:0}] [L23] EXPR a->is_locked VAL [a={2439:0}, a={2439:0}, a->is_locked=0] [L23] COND FALSE !(a->is_locked == 1) [L24] a->is_locked = 1 [L38] RET mutex_lock(&m) VAL [m={2439:0}] [L42] CALL mutex_lock(&m) VAL [a={2439:0}] [L23] EXPR a->is_locked VAL [a={2439:0}, a={2439:0}, a->is_locked=1] [L23] COND TRUE a->is_locked == 1 [L23] CALL err() [L15] reach_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 96.5MB. Free memory is still 71.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 349.23ms. Allocated memory is still 96.5MB. Free memory was 55.7MB in the beginning and 71.9MB in the end (delta: -16.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.66ms. Allocated memory is still 96.5MB. Free memory was 71.9MB in the beginning and 70.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.10ms. Allocated memory is still 96.5MB. Free memory was 70.7MB in the beginning and 69.7MB in the end (delta: 973.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 341.03ms. Allocated memory is still 96.5MB. Free memory was 69.4MB in the beginning and 60.5MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 802.84ms. Allocated memory is still 96.5MB. Free memory was 60.2MB in the beginning and 41.0MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 64.32ms. Allocated memory is still 96.5MB. Free memory was 40.7MB in the beginning and 39.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-25 07:37:05,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_844bb305-d8a6-4c2c-b745-568e592cc1bf/bin/ukojak-d1pc8ZmBRL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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