./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1fc4fe0-d76b-4cf3-a5e0-411c84731a3c/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1fc4fe0-d76b-4cf3-a5e0-411c84731a3c/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1fc4fe0-d76b-4cf3-a5e0-411c84731a3c/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1fc4fe0-d76b-4cf3-a5e0-411c84731a3c/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/mutex_lock_struct.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1fc4fe0-d76b-4cf3-a5e0-411c84731a3c/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1fc4fe0-d76b-4cf3-a5e0-411c84731a3c/bin/ukojak-verify-ENZ3QT5qd3 --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 608a161795639c070a2e0dd9cb77ec327f896e40581ac2ba975f6275c137af77 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 03:09:25,579 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 03:09:25,681 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1fc4fe0-d76b-4cf3-a5e0-411c84731a3c/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-25 03:09:25,688 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 03:09:25,688 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 03:09:25,720 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 03:09:25,722 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 03:09:25,723 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 03:09:25,724 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 03:09:25,724 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 03:09:25,725 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 03:09:25,725 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 03:09:25,725 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 03:09:25,725 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 03:09:25,726 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 03:09:25,726 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 03:09:25,727 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 03:09:25,727 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 03:09:25,727 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 03:09:25,727 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 03:09:25,727 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 03:09:25,727 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 03:09:25,727 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 03:09:25,728 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 03:09:25,728 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 03:09:25,728 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 03:09:25,728 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 03:09:25,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:09:25,728 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 03:09:25,728 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 03:09:25,729 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 03:09:25,729 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 03:09:25,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 03:09:25,729 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_c1fc4fe0-d76b-4cf3-a5e0-411c84731a3c/bin/ukojak-verify-ENZ3QT5qd3 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 -> 608a161795639c070a2e0dd9cb77ec327f896e40581ac2ba975f6275c137af77 [2024-11-25 03:09:26,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 03:09:26,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 03:09:26,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 03:09:26,086 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 03:09:26,086 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 03:09:26,087 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1fc4fe0-d76b-4cf3-a5e0-411c84731a3c/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/ldv-regression/mutex_lock_struct.i [2024-11-25 03:09:29,141 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1fc4fe0-d76b-4cf3-a5e0-411c84731a3c/bin/ukojak-verify-ENZ3QT5qd3/data/3f9305ead/8c8d925c2e59480284dcc3d10fb72d1f/FLAG55ae9f2f7 [2024-11-25 03:09:29,413 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 03:09:29,414 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1fc4fe0-d76b-4cf3-a5e0-411c84731a3c/sv-benchmarks/c/ldv-regression/mutex_lock_struct.i [2024-11-25 03:09:29,426 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1fc4fe0-d76b-4cf3-a5e0-411c84731a3c/bin/ukojak-verify-ENZ3QT5qd3/data/3f9305ead/8c8d925c2e59480284dcc3d10fb72d1f/FLAG55ae9f2f7 [2024-11-25 03:09:29,450 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1fc4fe0-d76b-4cf3-a5e0-411c84731a3c/bin/ukojak-verify-ENZ3QT5qd3/data/3f9305ead/8c8d925c2e59480284dcc3d10fb72d1f [2024-11-25 03:09:29,453 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 03:09:29,455 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 03:09:29,458 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 03:09:29,459 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 03:09:29,464 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 03:09:29,464 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:09:29" (1/1) ... [2024-11-25 03:09:29,467 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@646b7abb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:09:29, skipping insertion in model container [2024-11-25 03:09:29,467 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:09:29" (1/1) ... [2024-11-25 03:09:29,484 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 03:09:29,634 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_c1fc4fe0-d76b-4cf3-a5e0-411c84731a3c/sv-benchmarks/c/ldv-regression/mutex_lock_struct.i[295,308] [2024-11-25 03:09:29,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:09:29,662 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 03:09:29,671 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_c1fc4fe0-d76b-4cf3-a5e0-411c84731a3c/sv-benchmarks/c/ldv-regression/mutex_lock_struct.i[295,308] [2024-11-25 03:09:29,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:09:29,690 INFO L204 MainTranslator]: Completed translation [2024-11-25 03:09:29,691 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:09:29 WrapperNode [2024-11-25 03:09:29,691 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 03:09:29,692 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 03:09:29,692 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 03:09:29,692 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 03:09:29,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:09:29" (1/1) ... [2024-11-25 03:09:29,706 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:09:29" (1/1) ... [2024-11-25 03:09:29,721 INFO L138 Inliner]: procedures = 15, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 15 [2024-11-25 03:09:29,721 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 03:09:29,722 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 03:09:29,722 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 03:09:29,722 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 03:09:29,729 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:09:29" (1/1) ... [2024-11-25 03:09:29,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:09:29" (1/1) ... [2024-11-25 03:09:29,730 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:09:29" (1/1) ... [2024-11-25 03:09:29,731 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:09:29" (1/1) ... [2024-11-25 03:09:29,735 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:09:29" (1/1) ... [2024-11-25 03:09:29,736 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:09:29" (1/1) ... [2024-11-25 03:09:29,737 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:09:29" (1/1) ... [2024-11-25 03:09:29,741 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:09:29" (1/1) ... [2024-11-25 03:09:29,742 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:09:29" (1/1) ... [2024-11-25 03:09:29,744 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 03:09:29,747 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 03:09:29,747 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 03:09:29,747 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 03:09:29,748 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:09:29" (1/1) ... [2024-11-25 03:09:29,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:09:29,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1fc4fe0-d76b-4cf3-a5e0-411c84731a3c/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 03:09:29,789 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1fc4fe0-d76b-4cf3-a5e0-411c84731a3c/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 03:09:29,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1fc4fe0-d76b-4cf3-a5e0-411c84731a3c/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 03:09:29,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 03:09:29,823 INFO L130 BoogieDeclarations]: Found specification of procedure err [2024-11-25 03:09:29,823 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2024-11-25 03:09:29,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 03:09:29,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-25 03:09:29,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-25 03:09:29,824 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-11-25 03:09:29,825 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-11-25 03:09:29,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 03:09:29,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 03:09:29,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-25 03:09:29,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 03:09:29,897 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 03:09:29,900 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 03:09:30,019 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-11-25 03:09:30,019 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 03:09:30,043 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 03:09:30,044 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 03:09:30,044 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:09:30 BoogieIcfgContainer [2024-11-25 03:09:30,044 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 03:09:30,045 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 03:09:30,045 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 03:09:30,056 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 03:09:30,056 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:09:30" (1/1) ... [2024-11-25 03:09:30,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 03:09:30,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:09:30,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2024-11-25 03:09:30,118 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2024-11-25 03:09:30,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-25 03:09:30,120 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:09:30,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:09:30,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:09:30,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:09:30,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:09:30,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 15 transitions. [2024-11-25 03:09:30,643 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2024-11-25 03:09:30,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-25 03:09:30,646 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:09:30,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:09:30,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:09:30,670 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 03:09:30,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:09:30,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:09:30,748 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 03:09:30,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:09:30,769 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-25 03:09:30,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 03:09:30 ImpRootNode [2024-11-25 03:09:30,794 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 03:09:30,795 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 03:09:30,795 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 03:09:30,795 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 03:09:30,796 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:09:30" (3/4) ... [2024-11-25 03:09:30,799 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-25 03:09:30,846 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 7. [2024-11-25 03:09:30,907 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1fc4fe0-d76b-4cf3-a5e0-411c84731a3c/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-25 03:09:30,908 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1fc4fe0-d76b-4cf3-a5e0-411c84731a3c/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-25 03:09:30,908 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 03:09:30,910 INFO L158 Benchmark]: Toolchain (without parser) took 1454.77ms. Allocated memory is still 142.6MB. Free memory was 119.1MB in the beginning and 63.9MB in the end (delta: 55.1MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-25 03:09:30,911 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 142.6MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:09:30,911 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.94ms. Allocated memory is still 142.6MB. Free memory was 118.8MB in the beginning and 108.1MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 03:09:30,912 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.50ms. Allocated memory is still 142.6MB. Free memory was 107.9MB in the beginning and 106.9MB in the end (delta: 967.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:09:30,912 INFO L158 Benchmark]: Boogie Preprocessor took 24.85ms. Allocated memory is still 142.6MB. Free memory was 106.9MB in the beginning and 106.2MB in the end (delta: 751.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:09:30,913 INFO L158 Benchmark]: RCFGBuilder took 296.88ms. Allocated memory is still 142.6MB. Free memory was 106.2MB in the beginning and 95.8MB in the end (delta: 10.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 03:09:30,914 INFO L158 Benchmark]: CodeCheck took 749.73ms. Allocated memory is still 142.6MB. Free memory was 95.8MB in the beginning and 68.0MB in the end (delta: 27.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-25 03:09:30,915 INFO L158 Benchmark]: Witness Printer took 112.97ms. Allocated memory is still 142.6MB. Free memory was 68.0MB in the beginning and 63.9MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:09:30,917 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 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, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.1s 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, 0.3s 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, ConComCheckerStatistics: 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={9727:0}] [L38] CALL mutex_lock(&m) VAL [\old(a)={9727:0}] [L23] EXPR a->is_locked VAL [\old(a)={9727:0}, a={9727:0}] [L23] COND FALSE !(a->is_locked == 1) [L24] a->is_locked = 1 [L38] RET mutex_lock(&m) VAL [m={9727:0}] [L42] CALL mutex_lock(&m) VAL [\old(a)={9727:0}] [L23] EXPR a->is_locked VAL [\old(a)={9727:0}, a={9727:0}] [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 0.41ms. Allocated memory is still 142.6MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 232.94ms. Allocated memory is still 142.6MB. Free memory was 118.8MB in the beginning and 108.1MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.50ms. Allocated memory is still 142.6MB. Free memory was 107.9MB in the beginning and 106.9MB in the end (delta: 967.8kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.85ms. Allocated memory is still 142.6MB. Free memory was 106.9MB in the beginning and 106.2MB in the end (delta: 751.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 296.88ms. Allocated memory is still 142.6MB. Free memory was 106.2MB in the beginning and 95.8MB in the end (delta: 10.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 749.73ms. Allocated memory is still 142.6MB. Free memory was 95.8MB in the beginning and 68.0MB in the end (delta: 27.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 112.97ms. Allocated memory is still 142.6MB. Free memory was 68.0MB in the beginning and 63.9MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-25 03:09:30,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1fc4fe0-d76b-4cf3-a5e0-411c84731a3c/bin/ukojak-verify-ENZ3QT5qd3/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