./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/mutex_lock_int.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_85a18703-5179-4be1-8cdf-4dbd969eca81/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a18703-5179-4be1-8cdf-4dbd969eca81/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_85a18703-5179-4be1-8cdf-4dbd969eca81/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a18703-5179-4be1-8cdf-4dbd969eca81/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/mutex_lock_int.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a18703-5179-4be1-8cdf-4dbd969eca81/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_85a18703-5179-4be1-8cdf-4dbd969eca81/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 8b169d38538f0c8a0181bbf45a50b1cbddb80f9f42a6ac6255edc1f7c35c3dfd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 03:31:30,298 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 03:31:30,384 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a18703-5179-4be1-8cdf-4dbd969eca81/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-25 03:31:30,394 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 03:31:30,395 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 03:31:30,430 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 03:31:30,431 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 03:31:30,431 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 03:31:30,431 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 03:31:30,431 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 03:31:30,432 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 03:31:30,432 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 03:31:30,433 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 03:31:30,433 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 03:31:30,434 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 03:31:30,434 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 03:31:30,434 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 03:31:30,434 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 03:31:30,435 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 03:31:30,435 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 03:31:30,435 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 03:31:30,435 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 03:31:30,435 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 03:31:30,435 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 03:31:30,435 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 03:31:30,435 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 03:31:30,436 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 03:31:30,436 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:31:30,436 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 03:31:30,436 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 03:31:30,436 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 03:31:30,436 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 03:31:30,437 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 03:31:30,437 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_85a18703-5179-4be1-8cdf-4dbd969eca81/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 -> 8b169d38538f0c8a0181bbf45a50b1cbddb80f9f42a6ac6255edc1f7c35c3dfd [2024-11-25 03:31:30,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 03:31:30,781 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 03:31:30,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 03:31:30,785 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 03:31:30,786 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 03:31:30,787 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a18703-5179-4be1-8cdf-4dbd969eca81/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/ldv-regression/mutex_lock_int.i [2024-11-25 03:31:33,764 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a18703-5179-4be1-8cdf-4dbd969eca81/bin/ukojak-verify-ENZ3QT5qd3/data/633501e21/fb35fbc3bf954f039f21df2ba4840b04/FLAG512b8aeef [2024-11-25 03:31:34,014 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 03:31:34,014 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a18703-5179-4be1-8cdf-4dbd969eca81/sv-benchmarks/c/ldv-regression/mutex_lock_int.i [2024-11-25 03:31:34,022 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a18703-5179-4be1-8cdf-4dbd969eca81/bin/ukojak-verify-ENZ3QT5qd3/data/633501e21/fb35fbc3bf954f039f21df2ba4840b04/FLAG512b8aeef [2024-11-25 03:31:34,051 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a18703-5179-4be1-8cdf-4dbd969eca81/bin/ukojak-verify-ENZ3QT5qd3/data/633501e21/fb35fbc3bf954f039f21df2ba4840b04 [2024-11-25 03:31:34,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 03:31:34,069 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 03:31:34,071 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 03:31:34,071 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 03:31:34,076 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 03:31:34,077 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:31:34" (1/1) ... [2024-11-25 03:31:34,078 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ffd636d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:31:34, skipping insertion in model container [2024-11-25 03:31:34,079 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:31:34" (1/1) ... [2024-11-25 03:31:34,093 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 03:31:34,275 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_85a18703-5179-4be1-8cdf-4dbd969eca81/sv-benchmarks/c/ldv-regression/mutex_lock_int.i[293,306] [2024-11-25 03:31:34,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:31:34,309 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 03:31:34,320 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_85a18703-5179-4be1-8cdf-4dbd969eca81/sv-benchmarks/c/ldv-regression/mutex_lock_int.i[293,306] [2024-11-25 03:31:34,327 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:31:34,346 INFO L204 MainTranslator]: Completed translation [2024-11-25 03:31:34,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:31:34 WrapperNode [2024-11-25 03:31:34,348 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 03:31:34,349 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 03:31:34,349 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 03:31:34,349 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 03:31:34,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:31:34" (1/1) ... [2024-11-25 03:31:34,367 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:31:34" (1/1) ... [2024-11-25 03:31:34,384 INFO L138 Inliner]: procedures = 15, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 15 [2024-11-25 03:31:34,385 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 03:31:34,386 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 03:31:34,386 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 03:31:34,386 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 03:31:34,394 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:31:34" (1/1) ... [2024-11-25 03:31:34,394 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:31:34" (1/1) ... [2024-11-25 03:31:34,397 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:31:34" (1/1) ... [2024-11-25 03:31:34,398 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:31:34" (1/1) ... [2024-11-25 03:31:34,402 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:31:34" (1/1) ... [2024-11-25 03:31:34,404 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:31:34" (1/1) ... [2024-11-25 03:31:34,405 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:31:34" (1/1) ... [2024-11-25 03:31:34,410 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:31:34" (1/1) ... [2024-11-25 03:31:34,410 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:31:34" (1/1) ... [2024-11-25 03:31:34,411 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 03:31:34,412 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 03:31:34,412 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 03:31:34,412 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 03:31:34,415 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:31:34" (1/1) ... [2024-11-25 03:31:34,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:31:34,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a18703-5179-4be1-8cdf-4dbd969eca81/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 03:31:34,453 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a18703-5179-4be1-8cdf-4dbd969eca81/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 03:31:34,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a18703-5179-4be1-8cdf-4dbd969eca81/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 03:31:34,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 03:31:34,487 INFO L130 BoogieDeclarations]: Found specification of procedure err [2024-11-25 03:31:34,487 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2024-11-25 03:31:34,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 03:31:34,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-25 03:31:34,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-25 03:31:34,488 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-11-25 03:31:34,488 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-11-25 03:31:34,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 03:31:34,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 03:31:34,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-25 03:31:34,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 03:31:34,561 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 03:31:34,563 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 03:31:34,682 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-11-25 03:31:34,685 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 03:31:34,710 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 03:31:34,710 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 03:31:34,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:31:34 BoogieIcfgContainer [2024-11-25 03:31:34,711 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 03:31:34,711 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 03:31:34,712 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 03:31:34,723 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 03:31:34,723 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:31:34" (1/1) ... [2024-11-25 03:31:34,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 03:31:34,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:31:34,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2024-11-25 03:31:34,799 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2024-11-25 03:31:34,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-25 03:31:34,802 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:31:34,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:31:34,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:31:35,200 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 03:31:35,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:31:35,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 15 transitions. [2024-11-25 03:31:35,343 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2024-11-25 03:31:35,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-25 03:31:35,346 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:31:35,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:31:35,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:31:35,383 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 03:31:35,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:31:35,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:31:35,487 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 03:31:35,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:31:35,512 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-25 03:31:35,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 03:31:35 ImpRootNode [2024-11-25 03:31:35,549 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 03:31:35,550 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 03:31:35,550 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 03:31:35,550 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 03:31:35,551 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:31:34" (3/4) ... [2024-11-25 03:31:35,552 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-25 03:31:35,611 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 7. [2024-11-25 03:31:35,676 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a18703-5179-4be1-8cdf-4dbd969eca81/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-25 03:31:35,678 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a18703-5179-4be1-8cdf-4dbd969eca81/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-25 03:31:35,678 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 03:31:35,680 INFO L158 Benchmark]: Toolchain (without parser) took 1610.31ms. Allocated memory is still 117.4MB. Free memory was 94.5MB in the beginning and 39.5MB in the end (delta: 55.0MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-25 03:31:35,680 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 167.8MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:31:35,681 INFO L158 Benchmark]: CACSL2BoogieTranslator took 277.22ms. Allocated memory is still 117.4MB. Free memory was 94.2MB in the beginning and 83.5MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 03:31:35,683 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.25ms. Allocated memory is still 117.4MB. Free memory was 83.5MB in the beginning and 82.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:31:35,683 INFO L158 Benchmark]: Boogie Preprocessor took 25.81ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 82.0MB in the end (delta: 395.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:31:35,684 INFO L158 Benchmark]: RCFGBuilder took 298.65ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 71.7MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 03:31:35,685 INFO L158 Benchmark]: CodeCheck took 837.29ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 44.0MB in the end (delta: 27.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-25 03:31:35,685 INFO L158 Benchmark]: Witness Printer took 128.65ms. Allocated memory is still 117.4MB. Free memory was 43.6MB in the beginning and 39.5MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:31:35,689 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: 0.8s, 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, 0.1s 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: 16]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L32] int m; [L33] m = 0 VAL [m={16909:0}] [L35] CALL mutex_lock(&m) VAL [\old(a)={16909:0}] [L20] EXPR \read(*a) VAL [\old(a)={16909:0}, a={16909:0}] [L20] COND FALSE !(*a == 1) [L21] *a = 1 [L35] RET mutex_lock(&m) VAL [m={16909:0}] [L39] CALL mutex_lock(&m) VAL [\old(a)={16909:0}] [L20] EXPR \read(*a) VAL [\old(a)={16909:0}, a={16909:0}] [L20] COND TRUE *a == 1 [L20] CALL err() [L16] reach_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 167.8MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 277.22ms. Allocated memory is still 117.4MB. Free memory was 94.2MB in the beginning and 83.5MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.25ms. Allocated memory is still 117.4MB. Free memory was 83.5MB in the beginning and 82.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.81ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 82.0MB in the end (delta: 395.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 298.65ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 71.7MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 837.29ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 44.0MB in the end (delta: 27.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 128.65ms. Allocated memory is still 117.4MB. Free memory was 43.6MB in the beginning and 39.5MB 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 03:31:35,715 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a18703-5179-4be1-8cdf-4dbd969eca81/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