./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 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62edd95e-67dc-4f5a-9fa7-da649dbe1d25/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62edd95e-67dc-4f5a-9fa7-da649dbe1d25/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_62edd95e-67dc-4f5a-9fa7-da649dbe1d25/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62edd95e-67dc-4f5a-9fa7-da649dbe1d25/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/mutex_lock_struct.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62edd95e-67dc-4f5a-9fa7-da649dbe1d25/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_62edd95e-67dc-4f5a-9fa7-da649dbe1d25/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 608a161795639c070a2e0dd9cb77ec327f896e40581ac2ba975f6275c137af77 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 21:01:42,592 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 21:01:42,686 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62edd95e-67dc-4f5a-9fa7-da649dbe1d25/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-13 21:01:42,691 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 21:01:42,692 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 21:01:42,719 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 21:01:42,721 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 21:01:42,721 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 21:01:42,721 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 21:01:42,722 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 21:01:42,722 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 21:01:42,723 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 21:01:42,723 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 21:01:42,723 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 21:01:42,723 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 21:01:42,723 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 21:01:42,724 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 21:01:42,724 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 21:01:42,724 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 21:01:42,724 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 21:01:42,724 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 21:01:42,724 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 21:01:42,724 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 21:01:42,724 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 21:01:42,724 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 21:01:42,724 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 21:01:42,725 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 21:01:42,725 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:01:42,725 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 21:01:42,725 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 21:01:42,725 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 21:01:42,725 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 21:01:42,725 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 21:01:42,726 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_62edd95e-67dc-4f5a-9fa7-da649dbe1d25/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 -> 608a161795639c070a2e0dd9cb77ec327f896e40581ac2ba975f6275c137af77 [2024-11-13 21:01:43,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 21:01:43,048 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 21:01:43,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 21:01:43,055 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 21:01:43,055 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 21:01:43,057 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62edd95e-67dc-4f5a-9fa7-da649dbe1d25/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/ldv-regression/mutex_lock_struct.i Unable to find full path for "g++" [2024-11-13 21:01:44,925 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 21:01:45,221 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 21:01:45,222 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62edd95e-67dc-4f5a-9fa7-da649dbe1d25/sv-benchmarks/c/ldv-regression/mutex_lock_struct.i [2024-11-13 21:01:45,243 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62edd95e-67dc-4f5a-9fa7-da649dbe1d25/bin/ukojak-verify-EEHR8qb7sm/data/74a795659/46b4fc98e4264c0e84f4a5eddc5fb15f/FLAG9c7a59bfb [2024-11-13 21:01:45,293 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62edd95e-67dc-4f5a-9fa7-da649dbe1d25/bin/ukojak-verify-EEHR8qb7sm/data/74a795659/46b4fc98e4264c0e84f4a5eddc5fb15f [2024-11-13 21:01:45,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 21:01:45,304 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 21:01:45,308 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 21:01:45,308 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 21:01:45,314 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 21:01:45,316 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:01:45" (1/1) ... [2024-11-13 21:01:45,318 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@566bd6f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:01:45, skipping insertion in model container [2024-11-13 21:01:45,318 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:01:45" (1/1) ... [2024-11-13 21:01:45,335 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 21:01:45,492 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_62edd95e-67dc-4f5a-9fa7-da649dbe1d25/sv-benchmarks/c/ldv-regression/mutex_lock_struct.i[295,308] [2024-11-13 21:01:45,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:01:45,521 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 21:01:45,532 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_62edd95e-67dc-4f5a-9fa7-da649dbe1d25/sv-benchmarks/c/ldv-regression/mutex_lock_struct.i[295,308] [2024-11-13 21:01:45,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:01:45,555 INFO L204 MainTranslator]: Completed translation [2024-11-13 21:01:45,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:01:45 WrapperNode [2024-11-13 21:01:45,556 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 21:01:45,557 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 21:01:45,557 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 21:01:45,558 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 21:01:45,564 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:01:45" (1/1) ... [2024-11-13 21:01:45,575 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:01:45" (1/1) ... [2024-11-13 21:01:45,590 INFO L138 Inliner]: procedures = 15, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 15 [2024-11-13 21:01:45,590 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 21:01:45,591 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 21:01:45,591 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 21:01:45,591 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 21:01:45,599 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:01:45" (1/1) ... [2024-11-13 21:01:45,599 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:01:45" (1/1) ... [2024-11-13 21:01:45,601 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:01:45" (1/1) ... [2024-11-13 21:01:45,602 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:01:45" (1/1) ... [2024-11-13 21:01:45,607 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:01:45" (1/1) ... [2024-11-13 21:01:45,610 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:01:45" (1/1) ... [2024-11-13 21:01:45,611 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:01:45" (1/1) ... [2024-11-13 21:01:45,616 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:01:45" (1/1) ... [2024-11-13 21:01:45,617 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 21:01:45,619 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 21:01:45,620 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 21:01:45,620 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 21:01:45,621 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:01:45" (1/1) ... [2024-11-13 21:01:45,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:01:45,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62edd95e-67dc-4f5a-9fa7-da649dbe1d25/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 21:01:45,664 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62edd95e-67dc-4f5a-9fa7-da649dbe1d25/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 21:01:45,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62edd95e-67dc-4f5a-9fa7-da649dbe1d25/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 21:01:45,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 21:01:45,698 INFO L130 BoogieDeclarations]: Found specification of procedure err [2024-11-13 21:01:45,698 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2024-11-13 21:01:45,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 21:01:45,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 21:01:45,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 21:01:45,699 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-11-13 21:01:45,699 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-11-13 21:01:45,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 21:01:45,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 21:01:45,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 21:01:45,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 21:01:45,779 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 21:01:45,781 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 21:01:45,892 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-11-13 21:01:45,892 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 21:01:45,925 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 21:01:45,929 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 21:01:45,930 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:01:45 BoogieIcfgContainer [2024-11-13 21:01:45,930 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 21:01:45,930 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 21:01:45,931 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 21:01:45,943 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 21:01:45,944 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:01:45" (1/1) ... [2024-11-13 21:01:45,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 21:01:46,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:01:46,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2024-11-13 21:01:46,015 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2024-11-13 21:01:46,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 21:01:46,016 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:01:46,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:01:46,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:01:46,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:01:46,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:01:46,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 15 transitions. [2024-11-13 21:01:46,520 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2024-11-13 21:01:46,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 21:01:46,524 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:01:46,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:01:46,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:01:46,553 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:01:46,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:01:46,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:01:46,616 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:01:46,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:01:46,637 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-13 21:01:46,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:01:46 ImpRootNode [2024-11-13 21:01:46,660 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 21:01:46,661 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 21:01:46,661 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 21:01:46,661 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 21:01:46,662 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:01:45" (3/4) ... [2024-11-13 21:01:46,663 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 21:01:46,705 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62edd95e-67dc-4f5a-9fa7-da649dbe1d25/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 21:01:46,705 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 21:01:46,706 INFO L158 Benchmark]: Toolchain (without parser) took 1402.47ms. Allocated memory is still 142.6MB. Free memory was 119.3MB in the beginning and 67.2MB in the end (delta: 52.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-13 21:01:46,706 INFO L158 Benchmark]: CDTParser took 1.66ms. Allocated memory is still 142.6MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:01:46,707 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.60ms. Allocated memory is still 142.6MB. Free memory was 119.1MB in the beginning and 108.4MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 21:01:46,711 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.83ms. Allocated memory is still 142.6MB. Free memory was 108.4MB in the beginning and 107.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:01:46,712 INFO L158 Benchmark]: Boogie Preprocessor took 26.60ms. Allocated memory is still 142.6MB. Free memory was 107.4MB in the beginning and 106.6MB in the end (delta: 764.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:01:46,713 INFO L158 Benchmark]: RCFGBuilder took 310.57ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 96.7MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 21:01:46,713 INFO L158 Benchmark]: CodeCheck took 730.09ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 69.0MB in the end (delta: 27.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 21:01:46,713 INFO L158 Benchmark]: Witness Printer took 44.12ms. Allocated memory is still 142.6MB. Free memory was 69.0MB in the beginning and 67.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:01:46,715 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, 0.0s 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, 0.3s 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 - 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 1.66ms. Allocated memory is still 142.6MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 251.60ms. Allocated memory is still 142.6MB. Free memory was 119.1MB in the beginning and 108.4MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.83ms. Allocated memory is still 142.6MB. Free memory was 108.4MB in the beginning and 107.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.60ms. Allocated memory is still 142.6MB. Free memory was 107.4MB in the beginning and 106.6MB in the end (delta: 764.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 310.57ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 96.7MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 730.09ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 69.0MB in the end (delta: 27.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 44.12ms. Allocated memory is still 142.6MB. Free memory was 69.0MB in the beginning and 67.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 21:01:46,746 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62edd95e-67dc-4f5a-9fa7-da649dbe1d25/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