./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a563-5b99-4d75-a80e-d158af173390/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a563-5b99-4d75-a80e-d158af173390/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a563-5b99-4d75-a80e-d158af173390/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a563-5b99-4d75-a80e-d158af173390/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a563-5b99-4d75-a80e-d158af173390/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a563-5b99-4d75-a80e-d158af173390/bin/ukojak-verify-EEHR8qb7sm --witnessprinter.witness.filename witness --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 869ef2ac3e655b6efbdfa5c05d637a0f622008da83d6042d15962fe695aee939 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 22:08:21,265 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 22:08:21,343 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a563-5b99-4d75-a80e-d158af173390/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-13 22:08:21,352 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 22:08:21,352 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 22:08:21,386 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 22:08:21,387 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 22:08:21,387 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 22:08:21,388 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 22:08:21,388 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 22:08:21,389 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 22:08:21,389 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 22:08:21,389 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 22:08:21,390 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 22:08:21,390 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 22:08:21,390 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 22:08:21,390 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 22:08:21,390 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 22:08:21,390 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 22:08:21,390 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 22:08:21,390 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 22:08:21,391 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 22:08:21,391 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 22:08:21,391 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 22:08:21,391 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 22:08:21,391 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 22:08:21,392 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 22:08:21,392 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:08:21,392 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 22:08:21,392 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 22:08:21,392 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 22:08:21,392 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 22:08:21,392 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 22:08:21,392 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_f208a563-5b99-4d75-a80e-d158af173390/bin/ukojak-verify-EEHR8qb7sm Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> 869ef2ac3e655b6efbdfa5c05d637a0f622008da83d6042d15962fe695aee939 [2024-11-13 22:08:21,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 22:08:21,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 22:08:21,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 22:08:21,697 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 22:08:21,697 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 22:08:21,699 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a563-5b99-4d75-a80e-d158af173390/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i Unable to find full path for "g++" [2024-11-13 22:08:23,631 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 22:08:23,962 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 22:08:23,962 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a563-5b99-4d75-a80e-d158af173390/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i [2024-11-13 22:08:23,982 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a563-5b99-4d75-a80e-d158af173390/bin/ukojak-verify-EEHR8qb7sm/data/9e0310e47/e77f605fa37a4c9b8ceab7bad9fd9cdb/FLAGc8a0de35e [2024-11-13 22:08:24,197 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a563-5b99-4d75-a80e-d158af173390/bin/ukojak-verify-EEHR8qb7sm/data/9e0310e47/e77f605fa37a4c9b8ceab7bad9fd9cdb [2024-11-13 22:08:24,200 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 22:08:24,201 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 22:08:24,204 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 22:08:24,205 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 22:08:24,210 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 22:08:24,211 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:08:24" (1/1) ... [2024-11-13 22:08:24,213 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70310104 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:08:24, skipping insertion in model container [2024-11-13 22:08:24,213 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:08:24" (1/1) ... [2024-11-13 22:08:24,266 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 22:08:24,676 WARN L250 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_f208a563-5b99-4d75-a80e-d158af173390/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25842,25855] [2024-11-13 22:08:24,682 WARN L250 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_f208a563-5b99-4d75-a80e-d158af173390/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25967,25980] [2024-11-13 22:08:24,683 WARN L250 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_f208a563-5b99-4d75-a80e-d158af173390/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[26082,26095] [2024-11-13 22:08:24,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:08:24,697 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 22:08:24,758 WARN L250 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_f208a563-5b99-4d75-a80e-d158af173390/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25842,25855] [2024-11-13 22:08:24,758 WARN L250 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_f208a563-5b99-4d75-a80e-d158af173390/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25967,25980] [2024-11-13 22:08:24,760 WARN L250 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_f208a563-5b99-4d75-a80e-d158af173390/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[26082,26095] [2024-11-13 22:08:24,764 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:08:24,800 INFO L204 MainTranslator]: Completed translation [2024-11-13 22:08:24,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:08:24 WrapperNode [2024-11-13 22:08:24,801 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 22:08:24,802 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 22:08:24,802 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 22:08:24,802 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 22:08:24,808 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:08:24" (1/1) ... [2024-11-13 22:08:24,829 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:08:24" (1/1) ... [2024-11-13 22:08:24,860 INFO L138 Inliner]: procedures = 139, calls = 57, calls flagged for inlining = 14, calls inlined = 13, statements flattened = 139 [2024-11-13 22:08:24,860 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 22:08:24,861 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 22:08:24,861 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 22:08:24,861 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 22:08:24,870 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:08:24" (1/1) ... [2024-11-13 22:08:24,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:08:24" (1/1) ... [2024-11-13 22:08:24,880 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:08:24" (1/1) ... [2024-11-13 22:08:24,880 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:08:24" (1/1) ... [2024-11-13 22:08:24,899 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:08:24" (1/1) ... [2024-11-13 22:08:24,903 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:08:24" (1/1) ... [2024-11-13 22:08:24,908 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:08:24" (1/1) ... [2024-11-13 22:08:24,912 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:08:24" (1/1) ... [2024-11-13 22:08:24,915 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 22:08:24,919 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 22:08:24,919 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 22:08:24,919 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 22:08:24,920 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:08:24" (1/1) ... [2024-11-13 22:08:24,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:08:24,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a563-5b99-4d75-a80e-d158af173390/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 22:08:24,952 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a563-5b99-4d75-a80e-d158af173390/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 22:08:24,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a563-5b99-4d75-a80e-d158af173390/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 22:08:24,979 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2024-11-13 22:08:24,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2024-11-13 22:08:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-13 22:08:24,980 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-13 22:08:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 22:08:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-11-13 22:08:24,980 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-11-13 22:08:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 22:08:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 22:08:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2024-11-13 22:08:24,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2024-11-13 22:08:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 22:08:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 22:08:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 22:08:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 22:08:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2024-11-13 22:08:24,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2024-11-13 22:08:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 22:08:24,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 22:08:25,170 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 22:08:25,172 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 22:08:25,548 INFO L? ?]: Removed 73 outVars from TransFormulas that were not future-live. [2024-11-13 22:08:25,548 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 22:08:25,692 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 22:08:25,692 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 22:08:25,693 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:08:25 BoogieIcfgContainer [2024-11-13 22:08:25,693 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 22:08:25,694 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 22:08:25,694 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 22:08:25,731 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 22:08:25,731 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:08:25" (1/1) ... [2024-11-13 22:08:25,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 22:08:25,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:08:25,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 49 states and 61 transitions. [2024-11-13 22:08:25,802 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 61 transitions. [2024-11-13 22:08:25,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-13 22:08:25,807 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:08:25,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:08:25,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:08:26,162 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 22:08:26,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:08:26,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 53 states and 65 transitions. [2024-11-13 22:08:26,250 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 65 transitions. [2024-11-13 22:08:26,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-13 22:08:26,251 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:08:26,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:08:26,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:08:26,885 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 22:08:27,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:08:27,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 59 states and 80 transitions. [2024-11-13 22:08:27,219 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 80 transitions. [2024-11-13 22:08:27,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-13 22:08:27,221 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:08:27,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:08:27,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:08:27,650 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 22:08:28,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:08:28,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 56 states and 72 transitions. [2024-11-13 22:08:28,132 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 72 transitions. [2024-11-13 22:08:28,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-13 22:08:28,134 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:08:28,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:08:28,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:08:28,279 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 22:08:28,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:08:28,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 58 states and 73 transitions. [2024-11-13 22:08:28,361 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 73 transitions. [2024-11-13 22:08:28,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-13 22:08:28,362 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:08:28,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:08:28,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:08:29,001 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 22:08:29,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:08:29,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 66 states and 86 transitions. [2024-11-13 22:08:29,813 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 86 transitions. [2024-11-13 22:08:29,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-13 22:08:29,815 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:08:29,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:08:29,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:08:29,865 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:08:29,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:08:30,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:08:30,180 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:08:30,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:08:30,312 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2024-11-13 22:08:30,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 10:08:30 ImpRootNode [2024-11-13 22:08:30,376 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 22:08:30,377 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 22:08:30,377 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 22:08:30,377 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 22:08:30,378 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:08:25" (3/4) ... [2024-11-13 22:08:30,379 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 22:08:30,445 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a563-5b99-4d75-a80e-d158af173390/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 22:08:30,447 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 22:08:30,450 INFO L158 Benchmark]: Toolchain (without parser) took 6246.62ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 92.2MB in the beginning and 253.6MB in the end (delta: -161.4MB). Peak memory consumption was 74.7MB. Max. memory is 16.1GB. [2024-11-13 22:08:30,450 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 167.8MB. Free memory is still 103.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:08:30,450 INFO L158 Benchmark]: CACSL2BoogieTranslator took 597.15ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 72.5MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 22:08:30,451 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.50ms. Allocated memory is still 117.4MB. Free memory was 72.5MB in the beginning and 70.3MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:08:30,451 INFO L158 Benchmark]: Boogie Preprocessor took 57.40ms. Allocated memory is still 117.4MB. Free memory was 70.3MB in the beginning and 68.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:08:30,451 INFO L158 Benchmark]: RCFGBuilder took 774.22ms. Allocated memory is still 117.4MB. Free memory was 68.5MB in the beginning and 38.3MB in the end (delta: 30.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 22:08:30,452 INFO L158 Benchmark]: CodeCheck took 4682.82ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 38.3MB in the beginning and 258.5MB in the end (delta: -220.1MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2024-11-13 22:08:30,453 INFO L158 Benchmark]: Witness Printer took 70.08ms. Allocated memory is still 352.3MB. Free memory was 258.5MB in the beginning and 253.6MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 22:08:30,456 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 6 procedures, 49 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 4.6s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 364 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 109 mSDsluCounter, 294 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 62 mSDsCounter, 68 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 324 IncrementalHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 68 mSolverCounterUnsat, 232 mSDtfsCounter, 324 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1049 GetRequests, 992 SyntacticMatches, 15 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 187 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 135 ConstructedInterpolants, 0 QuantifiedInterpolants, 825 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 37/45 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: 669]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L665] struct ldv_list_head mutexes = { &(mutexes), &(mutexes) }; [L692] CALL foo() [L681] FCALL ldv_initialize() [L682] CALL, EXPR ldv_successful_malloc(sizeof(struct mutex)) VAL [mutexes={3:0}] [L576] void *ptr = malloc(size); [L577] CALL assume_abort_if_not(ptr!=0) [L565] COND FALSE !(!cond) [L577] RET assume_abort_if_not(ptr!=0) [L578] return ptr; [L682] RET, EXPR ldv_successful_malloc(sizeof(struct mutex)) VAL [mutexes={3:0}] [L682] struct mutex *m1 = ldv_successful_malloc(sizeof(struct mutex)); [L683] CALL, EXPR ldv_successful_malloc(sizeof(struct mutex)) VAL [mutexes={3:0}] [L576] void *ptr = malloc(size); [L577] CALL assume_abort_if_not(ptr!=0) [L565] COND FALSE !(!cond) [L577] RET assume_abort_if_not(ptr!=0) [L578] return ptr; [L683] RET, EXPR ldv_successful_malloc(sizeof(struct mutex)) VAL [m1={-2:0}, mutexes={3:0}] [L683] struct mutex *m2 = ldv_successful_malloc(sizeof(struct mutex)); [L684] CALL mutex_lock(m1) VAL [mutexes={3:0}] [L669] CALL ldv_is_in_set(m, &mutexes) VAL [\old(e)={-2:0}, \old(s)={3:0}, mutexes={3:0}] [L654] struct ldv_list_element *m; [L655] EXPR (s)->next [L655] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L655] { const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );} [L655] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L655] COND FALSE !(&m->list != (s)) [L660] return 0; VAL [\old(e)={-2:0}, \old(s)={3:0}, \result=0, e={-2:0}, mutexes={3:0}] [L669] RET ldv_is_in_set(m, &mutexes) VAL [\old(m)={-2:0}, m={-2:0}, mutexes={3:0}] [L669] COND FALSE !(ldv_is_in_set(m, &mutexes)) [L670] CALL ldv_set_add(m, &mutexes) [L636] CALL, EXPR ldv_is_in_set(new, s) VAL [\old(e)={-2:0}, \old(s)={3:0}, mutexes={3:0}] [L654] struct ldv_list_element *m; [L655] EXPR (s)->next [L655] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L655] { const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );} [L655] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L655] COND FALSE !(&m->list != (s)) [L660] return 0; VAL [\old(e)={-2:0}, \old(s)={3:0}, \result=0, e={-2:0}, mutexes={3:0}] [L636] RET, EXPR ldv_is_in_set(new, s) VAL [mutexes={3:0}, new={-2:0}, s={3:0}] [L636] COND TRUE !ldv_is_in_set(new, s) [L637] struct ldv_list_element *le; VAL [mutexes={3:0}, new={-2:0}, s={3:0}] [L638] CALL, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) VAL [mutexes={3:0}] [L576] void *ptr = malloc(size); [L577] CALL assume_abort_if_not(ptr!=0) [L565] COND FALSE !(!cond) [L577] RET assume_abort_if_not(ptr!=0) [L578] return ptr; [L638] RET, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) VAL [mutexes={3:0}, new={-2:0}, s={3:0}] [L638] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L639] le->e = new [L640] CALL ldv_list_add(&le->list, s) [L608] EXPR head->next VAL [head={3:0}, mutexes={3:0}, new={-3:4}] [L608] CALL __ldv_list_add(new, head, head->next) VAL [\old(new)={-3:4}, \old(next)={3:0}, \old(prev)={3:0}, mutexes={3:0}] [L596] next->prev = new [L597] new->next = next [L598] new->prev = prev [L599] prev->next = new [L608] RET __ldv_list_add(new, head, head->next) VAL [head={3:0}, mutexes={3:0}, new={-3:4}] [L640] RET ldv_list_add(&le->list, s) [L670] RET ldv_set_add(m, &mutexes) [L684] RET mutex_lock(m1) VAL [m1={-2:0}, m2={-1:0}, mutexes={3:0}] [L685] CALL mutex_lock(m1) VAL [mutexes={3:0}] [L669] CALL ldv_is_in_set(m, &mutexes) VAL [\old(e)={-2:0}, \old(s)={3:0}, mutexes={3:0}] [L654] struct ldv_list_element *m; [L655] EXPR (s)->next [L655] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L655] { const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );} [L655] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L655] COND TRUE &m->list != (s) [L656] EXPR m->e VAL [\old(e)={-2:0}, \old(s)={3:0}, e={-2:0}, m={-3:0}, mutexes={3:0}, s={3:0}] [L656] COND TRUE m->e == e [L657] return 1; VAL [\old(e)={-2:0}, \old(s)={3:0}, \result=1, m={-3:0}, mutexes={3:0}, s={3:0}] [L669] RET ldv_is_in_set(m, &mutexes) VAL [\old(m)={-2:0}, m={-2:0}, mutexes={3:0}] [L669] COND TRUE ldv_is_in_set(m, &mutexes) [L669] reach_error() VAL [\old(m)={-2:0}, m={-2:0}, mutexes={3:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 167.8MB. Free memory is still 103.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 597.15ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 72.5MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.50ms. Allocated memory is still 117.4MB. Free memory was 72.5MB in the beginning and 70.3MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 57.40ms. Allocated memory is still 117.4MB. Free memory was 70.3MB in the beginning and 68.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 774.22ms. Allocated memory is still 117.4MB. Free memory was 68.5MB in the beginning and 38.3MB in the end (delta: 30.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * CodeCheck took 4682.82ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 38.3MB in the beginning and 258.5MB in the end (delta: -220.1MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. * Witness Printer took 70.08ms. Allocated memory is still 352.3MB. Free memory was 258.5MB in the beginning and 253.6MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 22:08:30,485 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f208a563-5b99-4d75-a80e-d158af173390/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with 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