./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 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae8441d-637c-4b22-95f9-58e31f5e4344/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae8441d-637c-4b22-95f9-58e31f5e4344/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae8441d-637c-4b22-95f9-58e31f5e4344/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae8441d-637c-4b22-95f9-58e31f5e4344/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/mutex_lock_struct.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae8441d-637c-4b22-95f9-58e31f5e4344/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae8441d-637c-4b22-95f9-58e31f5e4344/bin/ukojak-verify-1t5iHCbJaC --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 0.2.3-dev-30e01a7 [2023-11-23 20:11:24,578 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:11:24,692 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae8441d-637c-4b22-95f9-58e31f5e4344/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-23 20:11:24,705 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:11:24,706 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:11:24,755 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:11:24,756 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:11:24,757 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:11:24,759 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:11:24,764 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:11:24,764 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:11:24,765 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:11:24,765 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:11:24,766 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:11:24,767 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:11:24,767 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:11:24,767 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:11:24,768 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:11:24,769 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:11:24,769 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:11:24,769 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:11:24,776 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:11:24,776 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:11:24,777 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:11:24,777 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:11:24,778 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:11:24,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:11:24,779 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:11:24,779 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:11:24,779 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:11:24,780 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:11:24,780 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:11:24,781 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:11:24,781 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae8441d-637c-4b22-95f9-58e31f5e4344/bin/ukojak-verify-1t5iHCbJaC/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae8441d-637c-4b22-95f9-58e31f5e4344/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 608a161795639c070a2e0dd9cb77ec327f896e40581ac2ba975f6275c137af77 [2023-11-23 20:11:25,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:11:25,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:11:25,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:11:25,107 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:11:25,107 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:11:25,109 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae8441d-637c-4b22-95f9-58e31f5e4344/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/ldv-regression/mutex_lock_struct.i [2023-11-23 20:11:28,266 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:11:28,440 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:11:28,440 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae8441d-637c-4b22-95f9-58e31f5e4344/sv-benchmarks/c/ldv-regression/mutex_lock_struct.i [2023-11-23 20:11:28,447 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae8441d-637c-4b22-95f9-58e31f5e4344/bin/ukojak-verify-1t5iHCbJaC/data/d5557b34c/da0f21b43bd540188af1d5a97f8153c2/FLAG1483a6528 [2023-11-23 20:11:28,468 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae8441d-637c-4b22-95f9-58e31f5e4344/bin/ukojak-verify-1t5iHCbJaC/data/d5557b34c/da0f21b43bd540188af1d5a97f8153c2 [2023-11-23 20:11:28,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:11:28,475 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:11:28,477 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:11:28,477 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:11:28,482 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:11:28,483 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:11:28" (1/1) ... [2023-11-23 20:11:28,485 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@789696dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:28, skipping insertion in model container [2023-11-23 20:11:28,485 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:11:28" (1/1) ... [2023-11-23 20:11:28,508 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:11:28,677 WARN L240 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_aae8441d-637c-4b22-95f9-58e31f5e4344/sv-benchmarks/c/ldv-regression/mutex_lock_struct.i[295,308] [2023-11-23 20:11:28,696 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:11:28,706 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:11:28,716 WARN L240 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_aae8441d-637c-4b22-95f9-58e31f5e4344/sv-benchmarks/c/ldv-regression/mutex_lock_struct.i[295,308] [2023-11-23 20:11:28,721 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:11:28,736 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:11:28,736 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:28 WrapperNode [2023-11-23 20:11:28,736 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:11:28,737 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:11:28,738 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:11:28,738 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:11:28,745 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:28" (1/1) ... [2023-11-23 20:11:28,751 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:28" (1/1) ... [2023-11-23 20:11:28,764 INFO L138 Inliner]: procedures = 15, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 15 [2023-11-23 20:11:28,764 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:11:28,765 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:11:28,765 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:11:28,765 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:11:28,771 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:28" (1/1) ... [2023-11-23 20:11:28,772 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:28" (1/1) ... [2023-11-23 20:11:28,773 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:28" (1/1) ... [2023-11-23 20:11:28,773 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:28" (1/1) ... [2023-11-23 20:11:28,778 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:28" (1/1) ... [2023-11-23 20:11:28,779 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:28" (1/1) ... [2023-11-23 20:11:28,780 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:28" (1/1) ... [2023-11-23 20:11:28,781 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:28" (1/1) ... [2023-11-23 20:11:28,783 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:11:28,784 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:11:28,784 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:11:28,784 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:11:28,785 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:11:28" (1/1) ... [2023-11-23 20:11:28,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:11:28,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae8441d-637c-4b22-95f9-58e31f5e4344/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:11:28,819 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae8441d-637c-4b22-95f9-58e31f5e4344/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:11:28,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae8441d-637c-4b22-95f9-58e31f5e4344/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:11:28,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:11:28,858 INFO L130 BoogieDeclarations]: Found specification of procedure err [2023-11-23 20:11:28,858 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2023-11-23 20:11:28,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:11:28,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:11:28,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:11:28,861 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-23 20:11:28,861 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-23 20:11:28,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:11:28,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:11:28,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:11:28,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:11:28,944 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:11:28,947 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:11:29,105 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:11:29,140 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:11:29,141 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:11:29,142 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:11:29 BoogieIcfgContainer [2023-11-23 20:11:29,143 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:11:29,144 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:11:29,144 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:11:29,155 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:11:29,155 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:11:29" (1/1) ... [2023-11-23 20:11:29,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:11:29,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:11:29,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2023-11-23 20:11:29,215 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2023-11-23 20:11:29,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 20:11:29,217 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:11:29,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:11:29,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:11:29,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:11:29,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:11:29,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 15 transitions. [2023-11-23 20:11:29,702 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2023-11-23 20:11:29,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-23 20:11:29,712 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:11:29,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:11:29,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:11:29,750 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:11:29,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:11:29,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:11:29,872 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:11:29,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:11:29,890 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-23 20:11:29,919 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-23 20:11:29,920 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-23 20:11:29,924 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:11:29 ImpRootNode [2023-11-23 20:11:29,924 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:11:29,925 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:11:29,925 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:11:29,925 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:11:29,925 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:11:29" (3/4) ... [2023-11-23 20:11:29,926 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-23 20:11:29,929 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-23 20:11:29,929 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-23 20:11:29,964 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae8441d-637c-4b22-95f9-58e31f5e4344/bin/ukojak-verify-1t5iHCbJaC/witness.graphml [2023-11-23 20:11:29,964 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:11:29,965 INFO L158 Benchmark]: Toolchain (without parser) took 1489.85ms. Allocated memory is still 172.0MB. Free memory was 126.3MB in the beginning and 119.2MB in the end (delta: 7.0MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2023-11-23 20:11:29,966 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 130.0MB. Free memory is still 75.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:11:29,967 INFO L158 Benchmark]: CACSL2BoogieTranslator took 259.67ms. Allocated memory is still 172.0MB. Free memory was 125.9MB in the beginning and 115.6MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 20:11:29,967 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.06ms. Allocated memory is still 172.0MB. Free memory was 115.6MB in the beginning and 114.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:11:29,968 INFO L158 Benchmark]: Boogie Preprocessor took 18.10ms. Allocated memory is still 172.0MB. Free memory was 114.1MB in the beginning and 113.3MB in the end (delta: 799.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:11:29,969 INFO L158 Benchmark]: RCFGBuilder took 359.10ms. Allocated memory is still 172.0MB. Free memory was 112.9MB in the beginning and 103.2MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 20:11:29,970 INFO L158 Benchmark]: CodeCheck took 780.13ms. Allocated memory is still 172.0MB. Free memory was 102.8MB in the beginning and 121.3MB in the end (delta: -18.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:11:29,970 INFO L158 Benchmark]: Witness Printer took 39.86ms. Allocated memory is still 172.0MB. Free memory was 121.3MB in the beginning and 119.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:11:29,974 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 [a={9727:0}] [L23] EXPR a->is_locked VAL [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 [a={9727:0}] [L23] EXPR a->is_locked VAL [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 0.37ms. Allocated memory is still 130.0MB. Free memory is still 75.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 259.67ms. Allocated memory is still 172.0MB. Free memory was 125.9MB in the beginning and 115.6MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.06ms. Allocated memory is still 172.0MB. Free memory was 115.6MB in the beginning and 114.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.10ms. Allocated memory is still 172.0MB. Free memory was 114.1MB in the beginning and 113.3MB in the end (delta: 799.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 359.10ms. Allocated memory is still 172.0MB. Free memory was 112.9MB in the beginning and 103.2MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 780.13ms. Allocated memory is still 172.0MB. Free memory was 102.8MB in the beginning and 121.3MB in the end (delta: -18.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 39.86ms. Allocated memory is still 172.0MB. Free memory was 121.3MB in the beginning and 119.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate proved your program to be incorrect! [2023-11-23 20:11:30,011 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aae8441d-637c-4b22-95f9-58e31f5e4344/bin/ukojak-verify-1t5iHCbJaC/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