./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/lockfree-3.2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/lockfree-3.2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 31ec15b2e966aee42d8cde3b6798712776e0e885e8b3f5267212ea76fdd72bb4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 04:07:56,902 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 04:07:56,953 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2024-12-06 04:07:56,957 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 04:07:56,957 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 04:07:56,974 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 04:07:56,975 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 04:07:56,975 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 04:07:56,976 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 04:07:56,976 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 04:07:56,976 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 04:07:56,976 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 04:07:56,976 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 04:07:56,976 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-06 04:07:56,976 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-06 04:07:56,976 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-06 04:07:56,976 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 04:07:56,976 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 04:07:56,976 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 04:07:56,976 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 04:07:56,976 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 04:07:56,977 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 04:07:56,977 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 04:07:56,977 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 04:07:56,977 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 04:07:56,977 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:07:56,977 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 04:07:56,977 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 04:07:56,977 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 04:07:56,977 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 04:07:56,977 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_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 31ec15b2e966aee42d8cde3b6798712776e0e885e8b3f5267212ea76fdd72bb4 [2024-12-06 04:07:57,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 04:07:57,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 04:07:57,216 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 04:07:57,217 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 04:07:57,218 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 04:07:57,219 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/memsafety/lockfree-3.2.i [2024-12-06 04:07:59,784 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/data/9b61a1fb2/3a082719d7af4b4ca11c17d6b36d4578/FLAGd109fe855 [2024-12-06 04:08:00,012 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 04:08:00,012 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/sv-benchmarks/c/memsafety/lockfree-3.2.i [2024-12-06 04:08:00,022 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/data/9b61a1fb2/3a082719d7af4b4ca11c17d6b36d4578/FLAGd109fe855 [2024-12-06 04:08:00,366 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/data/9b61a1fb2/3a082719d7af4b4ca11c17d6b36d4578 [2024-12-06 04:08:00,369 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 04:08:00,370 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 04:08:00,371 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 04:08:00,371 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 04:08:00,374 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 04:08:00,375 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:08:00" (1/1) ... [2024-12-06 04:08:00,376 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@addc74c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:00, skipping insertion in model container [2024-12-06 04:08:00,376 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:08:00" (1/1) ... [2024-12-06 04:08:00,402 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 04:08:00,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:08:00,634 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 04:08:00,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:08:00,697 INFO L204 MainTranslator]: Completed translation [2024-12-06 04:08:00,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:00 WrapperNode [2024-12-06 04:08:00,698 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 04:08:00,699 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 04:08:00,699 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 04:08:00,699 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 04:08:00,705 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:00" (1/1) ... [2024-12-06 04:08:00,713 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:00" (1/1) ... [2024-12-06 04:08:00,731 INFO L138 Inliner]: procedures = 125, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 132 [2024-12-06 04:08:00,732 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 04:08:00,732 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 04:08:00,732 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 04:08:00,732 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 04:08:00,739 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:00" (1/1) ... [2024-12-06 04:08:00,740 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:00" (1/1) ... [2024-12-06 04:08:00,742 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:00" (1/1) ... [2024-12-06 04:08:00,743 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:00" (1/1) ... [2024-12-06 04:08:00,748 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:00" (1/1) ... [2024-12-06 04:08:00,749 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:00" (1/1) ... [2024-12-06 04:08:00,752 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:00" (1/1) ... [2024-12-06 04:08:00,753 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:00" (1/1) ... [2024-12-06 04:08:00,754 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:00" (1/1) ... [2024-12-06 04:08:00,756 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 04:08:00,757 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 04:08:00,757 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 04:08:00,757 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 04:08:00,758 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:00" (1/1) ... [2024-12-06 04:08:00,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:08:00,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 04:08:00,786 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 04:08:00,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 04:08:00,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-06 04:08:00,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-06 04:08:00,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-06 04:08:00,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 04:08:00,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-12-06 04:08:00,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-12-06 04:08:00,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-06 04:08:00,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 04:08:00,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 04:08:00,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 04:08:00,889 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 04:08:00,890 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 04:08:01,111 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-12-06 04:08:01,111 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 04:08:01,178 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 04:08:01,178 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-06 04:08:01,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:08:01 BoogieIcfgContainer [2024-12-06 04:08:01,179 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 04:08:01,180 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 04:08:01,180 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 04:08:01,190 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 04:08:01,190 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:08:01" (1/1) ... [2024-12-06 04:08:01,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 04:08:01,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:01,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 49 states and 61 transitions. [2024-12-06 04:08:01,240 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 61 transitions. [2024-12-06 04:08:01,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-06 04:08:01,242 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:01,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:08:01,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:01,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 04:08:01,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:01,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 49 states and 60 transitions. [2024-12-06 04:08:01,382 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2024-12-06 04:08:01,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-06 04:08:01,382 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:01,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:08:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:01,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 04:08:01,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:01,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 53 states and 68 transitions. [2024-12-06 04:08:01,476 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 68 transitions. [2024-12-06 04:08:01,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-06 04:08:01,476 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:01,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:08:01,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:01,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 04:08:01,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:01,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 56 states and 74 transitions. [2024-12-06 04:08:01,630 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 74 transitions. [2024-12-06 04:08:01,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 04:08:01,630 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:01,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:08:01,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:01,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 04:08:01,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:01,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 55 states and 73 transitions. [2024-12-06 04:08:01,741 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 73 transitions. [2024-12-06 04:08:01,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 04:08:01,741 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:01,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:08:01,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:01,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 04:08:01,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:01,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 54 states and 72 transitions. [2024-12-06 04:08:01,934 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 72 transitions. [2024-12-06 04:08:01,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 04:08:01,935 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:01,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:08:01,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:02,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 04:08:02,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:02,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 59 states and 84 transitions. [2024-12-06 04:08:02,229 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 84 transitions. [2024-12-06 04:08:02,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 04:08:02,231 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:02,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:08:02,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:02,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 04:08:02,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:02,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 58 states and 83 transitions. [2024-12-06 04:08:02,273 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 83 transitions. [2024-12-06 04:08:02,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 04:08:02,273 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:02,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:08:02,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:02,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 04:08:02,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:02,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 57 states and 82 transitions. [2024-12-06 04:08:02,562 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 82 transitions. [2024-12-06 04:08:02,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 04:08:02,562 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:02,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:08:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:02,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 04:08:02,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:02,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 61 states and 92 transitions. [2024-12-06 04:08:02,937 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 92 transitions. [2024-12-06 04:08:02,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 04:08:02,938 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:02,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:08:02,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:02,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 04:08:03,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:03,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 61 states and 91 transitions. [2024-12-06 04:08:03,057 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 91 transitions. [2024-12-06 04:08:03,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 04:08:03,058 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:03,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:08:03,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:03,085 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 04:08:03,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:03,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 64 states and 102 transitions. [2024-12-06 04:08:03,359 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 102 transitions. [2024-12-06 04:08:03,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 04:08:03,360 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:03,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:08:03,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:03,384 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 04:08:03,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:03,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 67 states and 111 transitions. [2024-12-06 04:08:03,681 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 111 transitions. [2024-12-06 04:08:03,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-06 04:08:03,681 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:03,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:08:03,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:03,723 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 04:08:04,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:04,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 71 states and 121 transitions. [2024-12-06 04:08:04,028 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 121 transitions. [2024-12-06 04:08:04,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-06 04:08:04,029 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:04,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:08:04,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:08:04,046 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 04:08:04,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:08:04,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:08:04,116 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 04:08:04,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:08:04,154 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 14 iterations. [2024-12-06 04:08:04,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 04:08:04 ImpRootNode [2024-12-06 04:08:04,185 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 04:08:04,186 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 04:08:04,186 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 04:08:04,186 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 04:08:04,187 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:08:01" (3/4) ... [2024-12-06 04:08:04,189 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 04:08:04,190 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 04:08:04,190 INFO L158 Benchmark]: Toolchain (without parser) took 3820.70ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 92.1MB in the beginning and 77.6MB in the end (delta: 14.6MB). Peak memory consumption was 106.9MB. Max. memory is 16.1GB. [2024-12-06 04:08:04,191 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:08:04,191 INFO L158 Benchmark]: CACSL2BoogieTranslator took 327.24ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 74.4MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 04:08:04,191 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.91ms. Allocated memory is still 117.4MB. Free memory was 74.1MB in the beginning and 72.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:08:04,192 INFO L158 Benchmark]: Boogie Preprocessor took 24.26ms. Allocated memory is still 117.4MB. Free memory was 72.4MB in the beginning and 71.3MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 04:08:04,192 INFO L158 Benchmark]: RCFGBuilder took 421.98ms. Allocated memory is still 117.4MB. Free memory was 71.0MB in the beginning and 46.9MB in the end (delta: 24.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 04:08:04,192 INFO L158 Benchmark]: CodeCheck took 3005.87ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 46.9MB in the beginning and 77.6MB in the end (delta: -30.7MB). Peak memory consumption was 64.9MB. Max. memory is 16.1GB. [2024-12-06 04:08:04,193 INFO L158 Benchmark]: Witness Printer took 3.62ms. Allocated memory is still 209.7MB. Free memory was 77.6MB in the beginning and 77.6MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:08:04,194 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 1 procedures, 49 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 14, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 675 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 248 mSDsluCounter, 553 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 276 mSDsCounter, 253 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1054 IncrementalHoareTripleChecker+Invalid, 1307 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 253 mSolverCounterUnsat, 277 mSDtfsCounter, 1054 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 871 GetRequests, 786 SyntacticMatches, 11 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1568 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 108 NumberOfCodeBlocks, 108 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 288 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 6/6 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 - UnprovableResult [Line: 592]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 592. Possible FailurePath: [L528] struct cell *S; [L529] int pc1 = 1; [L530] int pc4 = 1; [L531] static struct cell *t1 = ((void *)0); [L532] static struct cell *x1 = ((void *)0); [L561] struct cell* garbage; [L562] static struct cell *t4 = ((void *)0); [L563] static struct cell *x4 = ((void *)0); [L566] static int res4; [L594] S || 1 != pc4 || __VERIFIER_nondet_int() [L594] S || 1 != pc4 || __VERIFIER_nondet_int() VAL [S={0:0}, garbage={0:0}, pc1=1, pc4=1, res4=0, t1={0:0}, t4={0:0}, x1={0:0}, x4={0:0}] [L594] COND TRUE S || 1 != pc4 || __VERIFIER_nondet_int() [L595] COND TRUE __VERIFIER_nondet_int() [L596] CALL push() [L535] pc1++ [L536] case 1: [L537] x1 = malloc(sizeof(*x1)) VAL [S={0:0}, garbage={0:0}, pc1=2, pc4=1, res4=0, t1={0:0}, t4={0:0}, x1={-1:0}, x4={0:0}] [L538] x1->data = 0 VAL [S={0:0}, garbage={0:0}, pc1=2, pc4=1, res4=0, t1={0:0}, t4={0:0}, x1={-1:0}, x4={0:0}] [L539] x1->next = ((void *)0) VAL [S={0:0}, garbage={0:0}, pc1=2, pc4=1, res4=0, t1={0:0}, t4={0:0}, x1={-1:0}, x4={0:0}] [L596] RET push() [L594] S || 1 != pc4 || __VERIFIER_nondet_int() [L594] S || 1 != pc4 || __VERIFIER_nondet_int() VAL [S={0:0}, garbage={0:0}, pc1=2, pc4=1, res4=0, t1={0:0}, t4={0:0}, x1={-1:0}, x4={0:0}] [L594] COND FALSE !(S || 1 != pc4 || __VERIFIER_nondet_int()) [L600] COND FALSE !(\read(*garbage)) [L605] S = ((void *)0) [L606] t1 = ((void *)0) [L607] x1 = ((void *)0) [L608] t4 = ((void *)0) [L609] x4 = ((void *)0) [L610] return !!garbage; VAL [S={0:0}, \result=0, garbage={0:0}, pc1=2, pc4=1, res4=0, t1={0:0}, t4={0:0}, x1={0:0}, x4={0:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 327.24ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 74.4MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.91ms. Allocated memory is still 117.4MB. Free memory was 74.1MB in the beginning and 72.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.26ms. Allocated memory is still 117.4MB. Free memory was 72.4MB in the beginning and 71.3MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 421.98ms. Allocated memory is still 117.4MB. Free memory was 71.0MB in the beginning and 46.9MB in the end (delta: 24.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 3005.87ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 46.9MB in the beginning and 77.6MB in the end (delta: -30.7MB). Peak memory consumption was 64.9MB. Max. memory is 16.1GB. * Witness Printer took 3.62ms. Allocated memory is still 209.7MB. Free memory was 77.6MB in the beginning and 77.6MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 04:08:04,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/lockfree-3.2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 31ec15b2e966aee42d8cde3b6798712776e0e885e8b3f5267212ea76fdd72bb4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 04:08:06,117 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 04:08:06,191 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Bitvector.epf [2024-12-06 04:08:06,214 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 04:08:06,215 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 04:08:06,215 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 04:08:06,215 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 04:08:06,215 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 04:08:06,215 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 04:08:06,215 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 04:08:06,215 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 04:08:06,216 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-06 04:08:06,216 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-06 04:08:06,216 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-06 04:08:06,216 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 04:08:06,216 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 04:08:06,216 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 04:08:06,216 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 04:08:06,216 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 04:08:06,216 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 04:08:06,216 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 04:08:06,217 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 04:08:06,217 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 04:08:06,217 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 04:08:06,217 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 04:08:06,217 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 04:08:06,217 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 04:08:06,217 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 04:08:06,217 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:08:06,217 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 04:08:06,218 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 04:08:06,218 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 04:08:06,218 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 04:08:06,218 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 04:08:06,218 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_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 31ec15b2e966aee42d8cde3b6798712776e0e885e8b3f5267212ea76fdd72bb4 [2024-12-06 04:08:06,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 04:08:06,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 04:08:06,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 04:08:06,447 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 04:08:06,447 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 04:08:06,448 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/memsafety/lockfree-3.2.i [2024-12-06 04:08:09,117 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/data/945b0130b/52704bc4a6f447b8ba853066db36adb0/FLAG631f1bd78 [2024-12-06 04:08:09,331 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 04:08:09,332 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/sv-benchmarks/c/memsafety/lockfree-3.2.i [2024-12-06 04:08:09,343 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/data/945b0130b/52704bc4a6f447b8ba853066db36adb0/FLAG631f1bd78 [2024-12-06 04:08:09,357 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/data/945b0130b/52704bc4a6f447b8ba853066db36adb0 [2024-12-06 04:08:09,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 04:08:09,361 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 04:08:09,362 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 04:08:09,362 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 04:08:09,367 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 04:08:09,368 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:08:09" (1/1) ... [2024-12-06 04:08:09,368 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@289b2674 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:09, skipping insertion in model container [2024-12-06 04:08:09,369 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:08:09" (1/1) ... [2024-12-06 04:08:09,395 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 04:08:09,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:08:09,643 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 04:08:09,684 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:08:09,710 INFO L204 MainTranslator]: Completed translation [2024-12-06 04:08:09,710 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:09 WrapperNode [2024-12-06 04:08:09,710 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 04:08:09,711 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 04:08:09,711 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 04:08:09,711 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 04:08:09,716 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:09" (1/1) ... [2024-12-06 04:08:09,729 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:09" (1/1) ... [2024-12-06 04:08:09,748 INFO L138 Inliner]: procedures = 128, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 131 [2024-12-06 04:08:09,749 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 04:08:09,749 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 04:08:09,750 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 04:08:09,750 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 04:08:09,755 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:09" (1/1) ... [2024-12-06 04:08:09,755 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:09" (1/1) ... [2024-12-06 04:08:09,758 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:09" (1/1) ... [2024-12-06 04:08:09,759 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:09" (1/1) ... [2024-12-06 04:08:09,766 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:09" (1/1) ... [2024-12-06 04:08:09,767 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:09" (1/1) ... [2024-12-06 04:08:09,770 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:09" (1/1) ... [2024-12-06 04:08:09,772 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:09" (1/1) ... [2024-12-06 04:08:09,773 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:09" (1/1) ... [2024-12-06 04:08:09,776 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 04:08:09,777 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 04:08:09,777 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 04:08:09,777 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 04:08:09,778 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:09" (1/1) ... [2024-12-06 04:08:09,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:08:09,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 04:08:09,805 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 04:08:09,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 04:08:09,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-12-06 04:08:09,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-06 04:08:09,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 04:08:09,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-12-06 04:08:09,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-12-06 04:08:09,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-06 04:08:09,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-12-06 04:08:09,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 04:08:09,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 04:08:09,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 04:08:09,921 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 04:08:09,923 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 04:08:10,220 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-12-06 04:08:10,220 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 04:08:10,298 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 04:08:10,298 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-06 04:08:10,299 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:08:10 BoogieIcfgContainer [2024-12-06 04:08:10,299 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 04:08:10,300 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 04:08:10,300 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 04:08:10,309 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 04:08:10,309 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:08:10" (1/1) ... [2024-12-06 04:08:10,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 04:08:10,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:10,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 49 states and 61 transitions. [2024-12-06 04:08:10,354 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 61 transitions. [2024-12-06 04:08:10,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-06 04:08:10,356 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:10,357 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 04:08:10,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 04:08:10,359 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 04:08:10,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 04:08:10,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:10,444 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 04:08:10,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:10,466 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-06 04:08:10,469 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 04:08:10,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 04:08:10,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-06 04:08:10,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:10,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 49 states and 60 transitions. [2024-12-06 04:08:10,509 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2024-12-06 04:08:10,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-06 04:08:10,509 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:10,510 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 04:08:10,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 04:08:10,512 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 04:08:10,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-12-06 04:08:10,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:10,595 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 04:08:10,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:10,616 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-06 04:08:10,616 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 04:08:10,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 04:08:10,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-12-06 04:08:10,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:10,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 53 states and 68 transitions. [2024-12-06 04:08:10,675 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 68 transitions. [2024-12-06 04:08:10,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-06 04:08:10,676 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:10,676 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 04:08:10,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 04:08:10,678 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 04:08:10,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-12-06 04:08:10,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:10,753 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 04:08:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:10,769 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-06 04:08:10,770 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 04:08:10,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 04:08:10,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-12-06 04:08:10,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:10,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 56 states and 74 transitions. [2024-12-06 04:08:10,912 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 74 transitions. [2024-12-06 04:08:10,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 04:08:10,912 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:10,912 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 04:08:10,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 04:08:10,914 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 04:08:10,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-12-06 04:08:11,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:11,004 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 04:08:11,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:11,026 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-06 04:08:11,027 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 04:08:11,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-12-06 04:08:11,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 04:08:11,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-12-06 04:08:11,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:11,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 55 states and 73 transitions. [2024-12-06 04:08:11,123 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 73 transitions. [2024-12-06 04:08:11,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 04:08:11,123 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:11,124 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 04:08:11,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 04:08:11,126 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 04:08:11,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-12-06 04:08:11,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:11,217 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 04:08:11,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:11,238 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-06 04:08:11,239 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 04:08:11,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-12-06 04:08:11,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 04:08:11,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-12-06 04:08:11,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:11,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 54 states and 72 transitions. [2024-12-06 04:08:11,426 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 72 transitions. [2024-12-06 04:08:11,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 04:08:11,426 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:11,426 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 04:08:11,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 04:08:11,428 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 04:08:11,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-12-06 04:08:11,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:11,497 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 04:08:11,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:11,513 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-06 04:08:11,514 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 04:08:11,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 04:08:11,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-12-06 04:08:11,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:11,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 58 states and 81 transitions. [2024-12-06 04:08:11,768 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 81 transitions. [2024-12-06 04:08:11,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 04:08:11,770 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:11,770 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 04:08:11,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 04:08:11,772 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 04:08:11,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-12-06 04:08:11,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:11,852 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 04:08:11,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:11,875 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-06 04:08:11,876 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 04:08:11,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 04:08:11,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2024-12-06 04:08:11,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:11,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 57 states and 80 transitions. [2024-12-06 04:08:11,908 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 80 transitions. [2024-12-06 04:08:11,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 04:08:11,908 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:11,908 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 04:08:11,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 04:08:11,910 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 04:08:11,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-12-06 04:08:11,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:11,990 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 04:08:12,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:12,016 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-06 04:08:12,018 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 04:08:12,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-12-06 04:08:12,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 04:08:12,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2024-12-06 04:08:12,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:12,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 56 states and 79 transitions. [2024-12-06 04:08:12,079 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 79 transitions. [2024-12-06 04:08:12,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 04:08:12,080 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:12,080 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 04:08:12,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 04:08:12,082 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 04:08:12,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-12-06 04:08:12,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:12,153 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 04:08:12,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:12,168 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-06 04:08:12,169 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 04:08:12,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 04:08:12,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-12-06 04:08:12,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:12,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 60 states and 89 transitions. [2024-12-06 04:08:12,554 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 89 transitions. [2024-12-06 04:08:12,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 04:08:12,554 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:12,555 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 04:08:12,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 04:08:12,556 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 04:08:12,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-12-06 04:08:12,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:12,619 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 04:08:12,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:12,636 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-06 04:08:12,637 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 04:08:12,684 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 04:08:12,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2024-12-06 04:08:12,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:12,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 63 states and 100 transitions. [2024-12-06 04:08:12,974 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 100 transitions. [2024-12-06 04:08:12,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 04:08:12,975 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:12,975 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 04:08:12,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 04:08:12,977 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 04:08:12,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2024-12-06 04:08:13,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:13,057 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 04:08:13,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:13,075 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-06 04:08:13,076 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 04:08:13,094 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 04:08:13,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2024-12-06 04:08:13,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:13,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 66 states and 109 transitions. [2024-12-06 04:08:13,419 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 109 transitions. [2024-12-06 04:08:13,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-06 04:08:13,420 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:13,420 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 04:08:13,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 04:08:13,421 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 04:08:13,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-12-06 04:08:13,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:13,488 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 04:08:13,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:13,513 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-06 04:08:13,513 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 04:08:13,568 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 04:08:13,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2024-12-06 04:08:13,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:13,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 70 states and 118 transitions. [2024-12-06 04:08:13,957 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 118 transitions. [2024-12-06 04:08:13,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-06 04:08:13,957 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:13,958 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 04:08:13,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 04:08:13,959 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 04:08:13,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-12-06 04:08:14,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:08:14,059 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 04:08:14,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:08:14,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:08:14,206 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 04:08:14,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:08:14,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2024-12-06 04:08:14,297 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 13 iterations. [2024-12-06 04:08:14,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 04:08:14 ImpRootNode [2024-12-06 04:08:14,323 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 04:08:14,323 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 04:08:14,323 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 04:08:14,324 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 04:08:14,324 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:08:10" (3/4) ... [2024-12-06 04:08:14,326 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 04:08:14,326 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 04:08:14,327 INFO L158 Benchmark]: Toolchain (without parser) took 4966.08ms. Allocated memory was 92.3MB in the beginning and 125.8MB in the end (delta: 33.6MB). Free memory was 68.9MB in the beginning and 53.6MB in the end (delta: 15.3MB). Peak memory consumption was 49.2MB. Max. memory is 16.1GB. [2024-12-06 04:08:14,327 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:08:14,328 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.31ms. Allocated memory is still 92.3MB. Free memory was 68.7MB in the beginning and 50.2MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 04:08:14,328 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.97ms. Allocated memory is still 92.3MB. Free memory was 50.2MB in the beginning and 48.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:08:14,328 INFO L158 Benchmark]: Boogie Preprocessor took 26.73ms. Allocated memory is still 92.3MB. Free memory was 48.4MB in the beginning and 46.9MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 04:08:14,329 INFO L158 Benchmark]: RCFGBuilder took 522.23ms. Allocated memory is still 92.3MB. Free memory was 46.9MB in the beginning and 46.2MB in the end (delta: 688.0kB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2024-12-06 04:08:14,329 INFO L158 Benchmark]: CodeCheck took 4023.41ms. Allocated memory was 92.3MB in the beginning and 125.8MB in the end (delta: 33.6MB). Free memory was 45.9MB in the beginning and 54.8MB in the end (delta: -8.9MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. [2024-12-06 04:08:14,329 INFO L158 Benchmark]: Witness Printer took 2.87ms. Allocated memory is still 125.8MB. Free memory was 54.8MB in the beginning and 53.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:08:14,331 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 1 procedures, 49 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 4.0s, OverallIterations: 13, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 584 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 220 mSDsluCounter, 491 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 250 mSDsCounter, 193 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 851 IncrementalHoareTripleChecker+Invalid, 1044 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 193 mSolverCounterUnsat, 241 mSDtfsCounter, 851 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 832 GetRequests, 760 SyntacticMatches, 12 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 994 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 275 SizeOfPredicates, 2 NumberOfNonLiveVariables, 581 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 6/6 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 - UnprovableResult [Line: 592]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 592. Possible FailurePath: [L528] struct cell *S; [L529] int pc1 = 1; [L530] int pc4 = 1; [L531] static struct cell *t1 = ((void *)0); [L532] static struct cell *x1 = ((void *)0); [L561] struct cell* garbage; [L562] static struct cell *t4 = ((void *)0); [L563] static struct cell *x4 = ((void *)0); [L566] static int res4; [L594] S || 1 != pc4 || __VERIFIER_nondet_int() [L594] S || 1 != pc4 || __VERIFIER_nondet_int() VAL [S={0:0}, garbage={0:0}, pc1=1, pc4=1, res4=0, t1={0:0}, t4={0:0}, x1={0:0}, x4={0:0}] [L594] COND TRUE S || 1 != pc4 || __VERIFIER_nondet_int() [L595] COND TRUE __VERIFIER_nondet_int() [L596] CALL push() [L535] pc1++ [L536] case 1: [L537] x1 = malloc(sizeof(*x1)) VAL [S={0:0}, garbage={0:0}, pc1=2, pc4=1, res4=0, t1={0:0}, t4={0:0}, x1={3:0}, x4={0:0}] [L538] x1->data = 0 VAL [S={0:0}, garbage={0:0}, pc1=2, pc4=1, res4=0, t1={0:0}, t4={0:0}, x1={3:0}, x4={0:0}] [L539] x1->next = ((void *)0) VAL [S={0:0}, garbage={0:0}, pc1=2, pc4=1, res4=0, t1={0:0}, t4={0:0}, x1={3:0}, x4={0:0}] [L596] RET push() [L594] S || 1 != pc4 || __VERIFIER_nondet_int() [L594] S || 1 != pc4 || __VERIFIER_nondet_int() VAL [S={0:0}, garbage={0:0}, pc1=2, pc4=1, res4=0, t1={0:0}, t4={0:0}, x1={3:0}, x4={0:0}] [L594] COND FALSE !(S || 1 != pc4 || __VERIFIER_nondet_int()) [L600] COND FALSE !(\read(*garbage)) [L605] S = ((void *)0) [L606] t1 = ((void *)0) [L607] x1 = ((void *)0) [L608] t4 = ((void *)0) [L609] x4 = ((void *)0) [L610] return !!garbage; VAL [S={0:0}, \result=0, garbage={0:0}, pc1=2, pc4=1, res4=0, t1={0:0}, t4={0:0}, x1={0:0}, x4={0:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 348.31ms. Allocated memory is still 92.3MB. Free memory was 68.7MB in the beginning and 50.2MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.97ms. Allocated memory is still 92.3MB. Free memory was 50.2MB in the beginning and 48.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.73ms. Allocated memory is still 92.3MB. Free memory was 48.4MB in the beginning and 46.9MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 522.23ms. Allocated memory is still 92.3MB. Free memory was 46.9MB in the beginning and 46.2MB in the end (delta: 688.0kB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. * CodeCheck took 4023.41ms. Allocated memory was 92.3MB in the beginning and 125.8MB in the end (delta: 33.6MB). Free memory was 45.9MB in the beginning and 54.8MB in the end (delta: -8.9MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. * Witness Printer took 2.87ms. Allocated memory is still 125.8MB. Free memory was 54.8MB in the beginning and 53.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 04:08:14,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ed24727-ddb5-47e2-893d-f4378a06a446/bin/ukojak-verify-CZk0znPC7b/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 Result: UNKNOWN: Overapproximated counterexample