./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 cf1a7837 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_20bc6b41-cdcb-4efb-aa67-14d35af27b85/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20bc6b41-cdcb-4efb-aa67-14d35af27b85/bin/ukojak-verify-0OAaufAVZV/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20bc6b41-cdcb-4efb-aa67-14d35af27b85/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20bc6b41-cdcb-4efb-aa67-14d35af27b85/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/mutex_lock_int.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20bc6b41-cdcb-4efb-aa67-14d35af27b85/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20bc6b41-cdcb-4efb-aa67-14d35af27b85/bin/ukojak-verify-0OAaufAVZV --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 0.2.3-dev-cf1a783 [2023-11-11 23:51:07,046 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:51:07,111 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20bc6b41-cdcb-4efb-aa67-14d35af27b85/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-11 23:51:07,117 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-11 23:51:07,117 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-11 23:51:07,142 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:51:07,143 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-11 23:51:07,144 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-11 23:51:07,145 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:51:07,146 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:51:07,146 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:51:07,147 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-11 23:51:07,148 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-11 23:51:07,148 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-11 23:51:07,149 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-11 23:51:07,150 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:51:07,150 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-11 23:51:07,151 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:51:07,152 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-11 23:51:07,153 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-11 23:51:07,153 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-11 23:51:07,154 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:51:07,155 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:51:07,156 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:51:07,157 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:51:07,157 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:51:07,158 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:51:07,159 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:51:07,159 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-11 23:51:07,160 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-11 23:51:07,160 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-11 23:51:07,161 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-11 23:51:07,162 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_20bc6b41-cdcb-4efb-aa67-14d35af27b85/bin/ukojak-verify-0OAaufAVZV/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20bc6b41-cdcb-4efb-aa67-14d35af27b85/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8b169d38538f0c8a0181bbf45a50b1cbddb80f9f42a6ac6255edc1f7c35c3dfd [2023-11-11 23:51:07,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:51:07,508 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:51:07,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:51:07,513 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:51:07,513 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:51:07,515 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20bc6b41-cdcb-4efb-aa67-14d35af27b85/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/ldv-regression/mutex_lock_int.i [2023-11-11 23:51:10,592 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-11 23:51:10,824 INFO L384 CDTParser]: Found 1 translation units. [2023-11-11 23:51:10,825 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20bc6b41-cdcb-4efb-aa67-14d35af27b85/sv-benchmarks/c/ldv-regression/mutex_lock_int.i [2023-11-11 23:51:10,833 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20bc6b41-cdcb-4efb-aa67-14d35af27b85/bin/ukojak-verify-0OAaufAVZV/data/ddd93c7f8/f040250d96da40a285e5daa1d9c0b579/FLAG4fcb81884 [2023-11-11 23:51:10,848 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20bc6b41-cdcb-4efb-aa67-14d35af27b85/bin/ukojak-verify-0OAaufAVZV/data/ddd93c7f8/f040250d96da40a285e5daa1d9c0b579 [2023-11-11 23:51:10,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-11 23:51:10,853 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-11 23:51:10,854 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-11 23:51:10,854 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-11 23:51:10,860 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-11 23:51:10,861 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:51:10" (1/1) ... [2023-11-11 23:51:10,862 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60211830 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:10, skipping insertion in model container [2023-11-11 23:51:10,862 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:51:10" (1/1) ... [2023-11-11 23:51:10,884 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-11 23:51:11,026 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_20bc6b41-cdcb-4efb-aa67-14d35af27b85/sv-benchmarks/c/ldv-regression/mutex_lock_int.i[293,306] [2023-11-11 23:51:11,042 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:51:11,054 INFO L202 MainTranslator]: Completed pre-run [2023-11-11 23:51:11,067 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_20bc6b41-cdcb-4efb-aa67-14d35af27b85/sv-benchmarks/c/ldv-regression/mutex_lock_int.i[293,306] [2023-11-11 23:51:11,073 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:51:11,088 INFO L206 MainTranslator]: Completed translation [2023-11-11 23:51:11,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:11 WrapperNode [2023-11-11 23:51:11,089 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-11 23:51:11,091 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-11 23:51:11,091 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-11 23:51:11,091 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-11 23:51:11,100 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:11" (1/1) ... [2023-11-11 23:51:11,109 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:11" (1/1) ... [2023-11-11 23:51:11,128 INFO L138 Inliner]: procedures = 15, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 15 [2023-11-11 23:51:11,129 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-11 23:51:11,130 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-11 23:51:11,130 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-11 23:51:11,130 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-11 23:51:11,138 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:11" (1/1) ... [2023-11-11 23:51:11,138 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:11" (1/1) ... [2023-11-11 23:51:11,140 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:11" (1/1) ... [2023-11-11 23:51:11,140 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:11" (1/1) ... [2023-11-11 23:51:11,146 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:11" (1/1) ... [2023-11-11 23:51:11,147 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:11" (1/1) ... [2023-11-11 23:51:11,148 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:11" (1/1) ... [2023-11-11 23:51:11,149 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:11" (1/1) ... [2023-11-11 23:51:11,151 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-11 23:51:11,152 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-11 23:51:11,152 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-11 23:51:11,152 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-11 23:51:11,153 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:11" (1/1) ... [2023-11-11 23:51:11,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:51:11,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20bc6b41-cdcb-4efb-aa67-14d35af27b85/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-11 23:51:11,203 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20bc6b41-cdcb-4efb-aa67-14d35af27b85/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-11 23:51:11,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20bc6b41-cdcb-4efb-aa67-14d35af27b85/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-11 23:51:11,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-11 23:51:11,243 INFO L130 BoogieDeclarations]: Found specification of procedure err [2023-11-11 23:51:11,243 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2023-11-11 23:51:11,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-11 23:51:11,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-11 23:51:11,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-11 23:51:11,245 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-11 23:51:11,246 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-11 23:51:11,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-11 23:51:11,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-11 23:51:11,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-11 23:51:11,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-11 23:51:11,336 INFO L236 CfgBuilder]: Building ICFG [2023-11-11 23:51:11,340 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-11 23:51:11,445 INFO L277 CfgBuilder]: Performing block encoding [2023-11-11 23:51:11,467 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-11 23:51:11,467 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-11 23:51:11,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:51:11 BoogieIcfgContainer [2023-11-11 23:51:11,471 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-11 23:51:11,472 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-11 23:51:11,472 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-11 23:51:11,483 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-11 23:51:11,484 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:51:11" (1/1) ... [2023-11-11 23:51:11,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-11 23:51:11,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:51:11,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2023-11-11 23:51:11,557 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2023-11-11 23:51:11,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-11 23:51:11,559 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:51:11,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:51:11,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:51:11,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:51:12,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:51:12,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 15 transitions. [2023-11-11 23:51:12,085 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2023-11-11 23:51:12,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-11 23:51:12,089 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:51:12,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:51:12,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-11 23:51:12,110 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-11 23:51:12,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-11 23:51:12,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-11 23:51:12,173 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-11 23:51:12,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-11 23:51:12,192 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-11 23:51:12,217 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-11 23:51:12,218 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-11 23:51:12,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 11.11 11:51:12 ImpRootNode [2023-11-11 23:51:12,223 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-11 23:51:12,224 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-11 23:51:12,224 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-11 23:51:12,225 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-11 23:51:12,225 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:51:11" (3/4) ... [2023-11-11 23:51:12,227 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-11 23:51:12,230 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-11 23:51:12,230 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-11 23:51:12,272 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20bc6b41-cdcb-4efb-aa67-14d35af27b85/bin/ukojak-verify-0OAaufAVZV/witness.graphml [2023-11-11 23:51:12,273 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-11 23:51:12,274 INFO L158 Benchmark]: Toolchain (without parser) took 1420.89ms. Allocated memory is still 161.5MB. Free memory was 117.5MB in the beginning and 119.8MB in the end (delta: -2.3MB). Peak memory consumption was 469.1kB. Max. memory is 16.1GB. [2023-11-11 23:51:12,277 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 109.1MB. Free memory is still 59.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:51:12,280 INFO L158 Benchmark]: CACSL2BoogieTranslator took 235.76ms. Allocated memory is still 161.5MB. Free memory was 117.5MB in the beginning and 107.1MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-11 23:51:12,281 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.29ms. Allocated memory is still 161.5MB. Free memory was 107.1MB in the beginning and 105.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:51:12,281 INFO L158 Benchmark]: Boogie Preprocessor took 21.35ms. Allocated memory is still 161.5MB. Free memory was 105.8MB in the beginning and 104.8MB in the end (delta: 934.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:51:12,282 INFO L158 Benchmark]: RCFGBuilder took 319.15ms. Allocated memory is still 161.5MB. Free memory was 104.8MB in the beginning and 94.9MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-11 23:51:12,282 INFO L158 Benchmark]: CodeCheck took 751.56ms. Allocated memory is still 161.5MB. Free memory was 94.9MB in the beginning and 121.9MB in the end (delta: -27.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:51:12,283 INFO L158 Benchmark]: Witness Printer took 48.78ms. Allocated memory is still 161.5MB. Free memory was 121.9MB in the beginning and 119.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:51:12,291 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: 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={2439:0}] [L35] CALL mutex_lock(&m) VAL [a={2439:0}] [L20] EXPR \read(*a) VAL [a={2439:0}, a={2439:0}] [L20] COND FALSE !(*a == 1) [L21] *a = 1 [L35] RET mutex_lock(&m) VAL [m={2439:0}] [L39] CALL mutex_lock(&m) VAL [a={2439:0}] [L20] EXPR \read(*a) VAL [a={2439:0}, a={2439:0}] [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 0.35ms. Allocated memory is still 109.1MB. Free memory is still 59.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 235.76ms. Allocated memory is still 161.5MB. Free memory was 117.5MB in the beginning and 107.1MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.29ms. Allocated memory is still 161.5MB. Free memory was 107.1MB in the beginning and 105.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.35ms. Allocated memory is still 161.5MB. Free memory was 105.8MB in the beginning and 104.8MB in the end (delta: 934.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 319.15ms. Allocated memory is still 161.5MB. Free memory was 104.8MB in the beginning and 94.9MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 751.56ms. Allocated memory is still 161.5MB. Free memory was 94.9MB in the beginning and 121.9MB in the end (delta: -27.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 48.78ms. Allocated memory is still 161.5MB. Free memory was 121.9MB in the beginning and 119.8MB 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! [2023-11-11 23:51:12,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20bc6b41-cdcb-4efb-aa67-14d35af27b85/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, 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