./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-properties/splice-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_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/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_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/splice-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/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_d3043580-528e-4055-a777-900a3f241144/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 098fc4cb5d15cb305e8d98bf2e1c69b111d102681b51dec68ae720515d6f30bc --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 05:45:51,130 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 05:45:51,187 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2024-12-06 05:45:51,191 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 05:45:51,192 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 05:45:51,212 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 05:45:51,213 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 05:45:51,213 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 05:45:51,214 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 05:45:51,214 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 05:45:51,214 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 05:45:51,214 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 05:45:51,214 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 05:45:51,214 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-06 05:45:51,214 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-06 05:45:51,214 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-06 05:45:51,215 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 05:45:51,215 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 05:45:51,215 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 05:45:51,215 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 05:45:51,215 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 05:45:51,215 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 05:45:51,215 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 05:45:51,215 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 05:45:51,215 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 05:45:51,215 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:45:51,216 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 05:45:51,216 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 05:45:51,216 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 05:45:51,216 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 05:45:51,216 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_d3043580-528e-4055-a777-900a3f241144/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 -> 098fc4cb5d15cb305e8d98bf2e1c69b111d102681b51dec68ae720515d6f30bc [2024-12-06 05:45:51,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 05:45:51,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 05:45:51,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 05:45:51,456 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 05:45:51,456 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 05:45:51,457 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/list-properties/splice-2.i [2024-12-06 05:45:54,104 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/data/075a059c4/577b2285e65b44c7a16194042e7a6650/FLAG726f4223f [2024-12-06 05:45:54,331 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 05:45:54,332 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/sv-benchmarks/c/list-properties/splice-2.i [2024-12-06 05:45:54,342 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/data/075a059c4/577b2285e65b44c7a16194042e7a6650/FLAG726f4223f [2024-12-06 05:45:54,672 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/data/075a059c4/577b2285e65b44c7a16194042e7a6650 [2024-12-06 05:45:54,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 05:45:54,676 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 05:45:54,677 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 05:45:54,677 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 05:45:54,682 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 05:45:54,683 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:45:54" (1/1) ... [2024-12-06 05:45:54,684 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e7c1fae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:45:54, skipping insertion in model container [2024-12-06 05:45:54,684 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:45:54" (1/1) ... [2024-12-06 05:45:54,716 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 05:45:54,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:45:54,980 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 05:45:55,011 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:45:55,037 INFO L204 MainTranslator]: Completed translation [2024-12-06 05:45:55,037 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:45:55 WrapperNode [2024-12-06 05:45:55,037 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 05:45:55,038 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 05:45:55,038 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 05:45:55,038 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 05:45:55,044 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:45:55" (1/1) ... [2024-12-06 05:45:55,054 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:45:55" (1/1) ... [2024-12-06 05:45:55,073 INFO L138 Inliner]: procedures = 124, calls = 25, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 108 [2024-12-06 05:45:55,073 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 05:45:55,074 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 05:45:55,074 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 05:45:55,074 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 05:45:55,081 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:45:55" (1/1) ... [2024-12-06 05:45:55,081 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:45:55" (1/1) ... [2024-12-06 05:45:55,084 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:45:55" (1/1) ... [2024-12-06 05:45:55,084 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:45:55" (1/1) ... [2024-12-06 05:45:55,091 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:45:55" (1/1) ... [2024-12-06 05:45:55,092 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:45:55" (1/1) ... [2024-12-06 05:45:55,096 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:45:55" (1/1) ... [2024-12-06 05:45:55,097 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:45:55" (1/1) ... [2024-12-06 05:45:55,098 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:45:55" (1/1) ... [2024-12-06 05:45:55,100 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 05:45:55,100 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 05:45:55,101 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 05:45:55,101 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 05:45:55,101 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:45:55" (1/1) ... [2024-12-06 05:45:55,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:45:55,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 05:45:55,129 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 05:45:55,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 05:45:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-06 05:45:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-06 05:45:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-06 05:45:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 05:45:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-12-06 05:45:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-12-06 05:45:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 05:45:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 05:45:55,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 05:45:55,237 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 05:45:55,238 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 05:45:55,465 INFO L? ?]: Removed 88 outVars from TransFormulas that were not future-live. [2024-12-06 05:45:55,465 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 05:45:55,510 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 05:45:55,510 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-06 05:45:55,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:45:55 BoogieIcfgContainer [2024-12-06 05:45:55,511 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 05:45:55,511 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 05:45:55,512 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 05:45:55,519 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 05:45:55,520 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:45:55" (1/1) ... [2024-12-06 05:45:55,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 05:45:55,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:45:55,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 67 states and 80 transitions. [2024-12-06 05:45:55,580 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 80 transitions. [2024-12-06 05:45:55,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-06 05:45:55,582 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:45:55,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:45:55,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:45:55,716 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 05:45:55,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:45:55,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 67 states and 79 transitions. [2024-12-06 05:45:55,738 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 79 transitions. [2024-12-06 05:45:55,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-06 05:45:55,739 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:45:55,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:45:55,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:45:55,837 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 05:45:55,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:45:55,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 70 states and 84 transitions. [2024-12-06 05:45:55,887 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 84 transitions. [2024-12-06 05:45:55,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-06 05:45:55,888 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:45:55,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:45:55,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:45:56,033 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 05:45:56,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:45:56,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 73 states and 89 transitions. [2024-12-06 05:45:56,230 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 89 transitions. [2024-12-06 05:45:56,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 05:45:56,230 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:45:56,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:45:56,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:45:56,274 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 05:45:56,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:45:56,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 75 states and 92 transitions. [2024-12-06 05:45:56,286 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 92 transitions. [2024-12-06 05:45:56,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 05:45:56,287 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:45:56,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:45:56,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:45:56,396 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 05:45:56,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:45:56,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 77 states and 96 transitions. [2024-12-06 05:45:56,530 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 96 transitions. [2024-12-06 05:45:56,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 05:45:56,530 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:45:56,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:45:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:45:56,574 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 05:45:56,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:45:56,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 80 states and 102 transitions. [2024-12-06 05:45:56,900 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 102 transitions. [2024-12-06 05:45:56,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 05:45:56,900 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:45:56,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:45:56,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:45:56,956 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 05:45:57,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:45:57,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 84 states and 110 transitions. [2024-12-06 05:45:57,239 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 110 transitions. [2024-12-06 05:45:57,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 05:45:57,240 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:45:57,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:45:57,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:45:57,295 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 05:45:57,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:45:57,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 88 states and 118 transitions. [2024-12-06 05:45:57,614 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 118 transitions. [2024-12-06 05:45:57,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 05:45:57,616 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:45:57,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:45:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:45:57,629 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:45:57,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:45:57,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:45:57,682 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:45:57,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:45:57,711 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 9 iterations. [2024-12-06 05:45:57,737 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 05:45:57 ImpRootNode [2024-12-06 05:45:57,738 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 05:45:57,738 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 05:45:57,738 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 05:45:57,739 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 05:45:57,739 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:45:55" (3/4) ... [2024-12-06 05:45:57,742 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 05:45:57,743 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 05:45:57,744 INFO L158 Benchmark]: Toolchain (without parser) took 3068.14ms. Allocated memory is still 142.6MB. Free memory was 116.5MB in the beginning and 43.6MB in the end (delta: 72.9MB). Peak memory consumption was 72.9MB. Max. memory is 16.1GB. [2024-12-06 05:45:57,744 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:45:57,745 INFO L158 Benchmark]: CACSL2BoogieTranslator took 360.40ms. Allocated memory is still 142.6MB. Free memory was 116.3MB in the beginning and 98.8MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 05:45:57,745 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.30ms. Allocated memory is still 142.6MB. Free memory was 98.8MB in the beginning and 97.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:45:57,745 INFO L158 Benchmark]: Boogie Preprocessor took 26.00ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 95.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:45:57,746 INFO L158 Benchmark]: RCFGBuilder took 410.39ms. Allocated memory is still 142.6MB. Free memory was 95.8MB in the beginning and 73.0MB in the end (delta: 22.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-06 05:45:57,746 INFO L158 Benchmark]: CodeCheck took 2226.19ms. Allocated memory is still 142.6MB. Free memory was 73.0MB in the beginning and 43.6MB in the end (delta: 29.4MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. [2024-12-06 05:45:57,747 INFO L158 Benchmark]: Witness Printer took 4.81ms. Allocated memory is still 142.6MB. Free memory was 43.6MB in the beginning and 43.6MB in the end (delta: 15.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:45:57,749 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, 67 locations, 30 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 239 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 128 mSDsluCounter, 337 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 201 mSDsCounter, 84 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 296 IncrementalHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 84 mSolverCounterUnsat, 136 mSDtfsCounter, 296 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 371 GetRequests, 311 SyntacticMatches, 4 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 991 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 224 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 531]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 531. Possible FailurePath: [L532] int flag = 1; [L533] List a = (List) malloc(sizeof(struct node)); [L534] COND FALSE !(a == 0) [L535] List t; [L536] List l1; [L537] List l2; [L538] List b; [L539] List u; [L540] List p = a; VAL [a={-1:0}, flag=1, p={-1:0}] [L541] COND FALSE !(__VERIFIER_nondet_int()) [L554] p->h = 3 VAL [a={-1:0}, flag=1] [L555] EXPR a->h VAL [a={-1:0}, flag=1] [L555] COND TRUE a->h == 3 [L555] return 0; VAL [\result=0, a={-1:0}, flag=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 360.40ms. Allocated memory is still 142.6MB. Free memory was 116.3MB in the beginning and 98.8MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.30ms. Allocated memory is still 142.6MB. Free memory was 98.8MB in the beginning and 97.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.00ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 95.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 410.39ms. Allocated memory is still 142.6MB. Free memory was 95.8MB in the beginning and 73.0MB in the end (delta: 22.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * CodeCheck took 2226.19ms. Allocated memory is still 142.6MB. Free memory was 73.0MB in the beginning and 43.6MB in the end (delta: 29.4MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. * Witness Printer took 4.81ms. Allocated memory is still 142.6MB. Free memory was 43.6MB in the beginning and 43.6MB in the end (delta: 15.8kB). 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 05:45:57,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/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_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/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_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/splice-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/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_d3043580-528e-4055-a777-900a3f241144/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 098fc4cb5d15cb305e8d98bf2e1c69b111d102681b51dec68ae720515d6f30bc --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 05:45:59,894 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 05:45:59,994 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Bitvector.epf [2024-12-06 05:46:00,021 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 05:46:00,022 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 05:46:00,022 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 05:46:00,022 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 05:46:00,022 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 05:46:00,023 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 05:46:00,023 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 05:46:00,023 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 05:46:00,023 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-06 05:46:00,023 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-06 05:46:00,023 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-06 05:46:00,023 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 05:46:00,023 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 05:46:00,024 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 05:46:00,024 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 05:46:00,024 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 05:46:00,024 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 05:46:00,024 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 05:46:00,024 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 05:46:00,024 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 05:46:00,024 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 05:46:00,024 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 05:46:00,024 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 05:46:00,025 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 05:46:00,025 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 05:46:00,025 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:46:00,025 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 05:46:00,025 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 05:46:00,025 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 05:46:00,025 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 05:46:00,025 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 05:46:00,025 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_d3043580-528e-4055-a777-900a3f241144/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 -> 098fc4cb5d15cb305e8d98bf2e1c69b111d102681b51dec68ae720515d6f30bc [2024-12-06 05:46:00,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 05:46:00,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 05:46:00,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 05:46:00,278 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 05:46:00,279 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 05:46:00,280 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/list-properties/splice-2.i [2024-12-06 05:46:03,101 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/data/192cd3db0/32891f8f8197400a8dc2fa21db5d018d/FLAGff84fcfcd [2024-12-06 05:46:03,302 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 05:46:03,303 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/sv-benchmarks/c/list-properties/splice-2.i [2024-12-06 05:46:03,315 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/data/192cd3db0/32891f8f8197400a8dc2fa21db5d018d/FLAGff84fcfcd [2024-12-06 05:46:03,327 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/data/192cd3db0/32891f8f8197400a8dc2fa21db5d018d [2024-12-06 05:46:03,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 05:46:03,330 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 05:46:03,331 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 05:46:03,331 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 05:46:03,335 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 05:46:03,336 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:46:03" (1/1) ... [2024-12-06 05:46:03,337 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fbe2f67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:46:03, skipping insertion in model container [2024-12-06 05:46:03,337 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:46:03" (1/1) ... [2024-12-06 05:46:03,363 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 05:46:03,593 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:46:03,603 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 05:46:03,643 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:46:03,674 INFO L204 MainTranslator]: Completed translation [2024-12-06 05:46:03,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:46:03 WrapperNode [2024-12-06 05:46:03,674 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 05:46:03,675 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 05:46:03,675 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 05:46:03,675 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 05:46:03,682 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:46:03" (1/1) ... [2024-12-06 05:46:03,695 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:46:03" (1/1) ... [2024-12-06 05:46:03,711 INFO L138 Inliner]: procedures = 127, calls = 25, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 108 [2024-12-06 05:46:03,712 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 05:46:03,712 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 05:46:03,712 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 05:46:03,712 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 05:46:03,719 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:46:03" (1/1) ... [2024-12-06 05:46:03,719 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:46:03" (1/1) ... [2024-12-06 05:46:03,722 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:46:03" (1/1) ... [2024-12-06 05:46:03,723 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:46:03" (1/1) ... [2024-12-06 05:46:03,730 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:46:03" (1/1) ... [2024-12-06 05:46:03,731 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:46:03" (1/1) ... [2024-12-06 05:46:03,734 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:46:03" (1/1) ... [2024-12-06 05:46:03,736 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:46:03" (1/1) ... [2024-12-06 05:46:03,737 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:46:03" (1/1) ... [2024-12-06 05:46:03,739 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 05:46:03,740 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 05:46:03,740 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 05:46:03,740 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 05:46:03,741 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:46:03" (1/1) ... [2024-12-06 05:46:03,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:46:03,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 05:46:03,772 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 05:46:03,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 05:46:03,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-12-06 05:46:03,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-06 05:46:03,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 05:46:03,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-12-06 05:46:03,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-12-06 05:46:03,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-12-06 05:46:03,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 05:46:03,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 05:46:03,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 05:46:03,904 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 05:46:03,906 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 05:46:04,260 INFO L? ?]: Removed 88 outVars from TransFormulas that were not future-live. [2024-12-06 05:46:04,260 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 05:46:04,309 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 05:46:04,310 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-06 05:46:04,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:46:04 BoogieIcfgContainer [2024-12-06 05:46:04,310 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 05:46:04,311 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 05:46:04,311 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 05:46:04,319 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 05:46:04,320 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:46:04" (1/1) ... [2024-12-06 05:46:04,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 05:46:04,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:46:04,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 67 states and 80 transitions. [2024-12-06 05:46:04,362 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 80 transitions. [2024-12-06 05:46:04,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-06 05:46:04,363 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:46:04,364 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 05:46:04,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 05:46:04,365 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 05:46:04,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 05:46:04,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:46:04,445 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 05:46:04,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:46:04,463 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-06 05:46:04,465 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 05:46:04,478 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 05:46:04,481 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-06 05:46:04,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:46:04,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 67 states and 79 transitions. [2024-12-06 05:46:04,498 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 79 transitions. [2024-12-06 05:46:04,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-06 05:46:04,499 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:46:04,499 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 05:46:04,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 05:46:04,501 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 05:46:04,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-12-06 05:46:04,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:46:04,565 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 05:46:04,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:46:04,590 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-06 05:46:04,591 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 05:46:04,621 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 05:46:04,654 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 05:46:04,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2024-12-06 05:46:04,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:46:04,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 70 states and 84 transitions. [2024-12-06 05:46:04,717 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 84 transitions. [2024-12-06 05:46:04,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-06 05:46:04,717 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:46:04,717 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 05:46:04,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 05:46:04,719 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 05:46:04,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-12-06 05:46:04,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:46:04,792 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 05:46:04,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:46:04,809 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-06 05:46:04,810 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 05:46:04,818 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 05:46:04,889 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 05:46:04,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-12-06 05:46:05,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:46:05,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 73 states and 89 transitions. [2024-12-06 05:46:05,181 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 89 transitions. [2024-12-06 05:46:05,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 05:46:05,182 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:46:05,182 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 05:46:05,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 05:46:05,184 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 05:46:05,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-12-06 05:46:05,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:46:05,251 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 05:46:05,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:46:05,266 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-06 05:46:05,267 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 05:46:05,273 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 05:46:05,292 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 05:46:05,293 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (5)] Exception during sending of exit command (exit): Broken pipe [2024-12-06 05:46:05,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2024-12-06 05:46:05,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:46:05,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 75 states and 92 transitions. [2024-12-06 05:46:05,317 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 92 transitions. [2024-12-06 05:46:05,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 05:46:05,317 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:46:05,318 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 05:46:05,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 05:46:05,320 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 05:46:05,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-12-06 05:46:05,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:46:05,409 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 05:46:05,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:46:05,424 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-06 05:46:05,425 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 05:46:05,432 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 05:46:05,474 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 05:46:05,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2024-12-06 05:46:05,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:46:05,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 77 states and 95 transitions. [2024-12-06 05:46:05,504 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 95 transitions. [2024-12-06 05:46:05,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 05:46:05,504 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:46:05,504 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 05:46:05,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 05:46:05,507 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 05:46:05,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-12-06 05:46:05,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:46:05,581 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 05:46:05,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:46:05,595 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-06 05:46:05,595 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 05:46:05,632 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 05:46:05,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-12-06 05:46:05,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:46:05,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 80 states and 100 transitions. [2024-12-06 05:46:05,938 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 100 transitions. [2024-12-06 05:46:05,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 05:46:05,938 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:46:05,938 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 05:46:05,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 05:46:05,940 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 05:46:05,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-12-06 05:46:06,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:46:06,009 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 05:46:06,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:46:06,027 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-06 05:46:06,028 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 05:46:06,033 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 05:46:06,047 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 05:46:06,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2024-12-06 05:46:06,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:46:06,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 84 states and 108 transitions. [2024-12-06 05:46:06,373 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 108 transitions. [2024-12-06 05:46:06,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 05:46:06,373 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:46:06,373 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 05:46:06,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 05:46:06,376 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 05:46:06,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-12-06 05:46:06,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:46:06,467 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 05:46:06,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:46:06,485 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-06 05:46:06,486 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 05:46:06,493 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 05:46:06,529 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 05:46:06,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2024-12-06 05:46:06,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:46:06,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 88 states and 116 transitions. [2024-12-06 05:46:06,935 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 116 transitions. [2024-12-06 05:46:06,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 05:46:06,937 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:46:06,937 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 05:46:06,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 05:46:06,939 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 05:46:06,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-12-06 05:46:07,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:46:07,044 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:46:07,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:46:07,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:46:07,111 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:46:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:46:07,137 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (10)] Exception during sending of exit command (exit): Broken pipe [2024-12-06 05:46:07,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-12-06 05:46:07,139 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 9 iterations. [2024-12-06 05:46:07,161 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 05:46:07 ImpRootNode [2024-12-06 05:46:07,161 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 05:46:07,161 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 05:46:07,161 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 05:46:07,161 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 05:46:07,162 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:46:04" (3/4) ... [2024-12-06 05:46:07,164 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 05:46:07,164 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 05:46:07,165 INFO L158 Benchmark]: Toolchain (without parser) took 3835.28ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 68.9MB in the beginning and 60.4MB in the end (delta: 8.5MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. [2024-12-06 05:46:07,166 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 83.9MB. Free memory is still 48.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:46:07,166 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.92ms. Allocated memory is still 92.3MB. Free memory was 68.7MB in the beginning and 50.5MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 05:46:07,166 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.50ms. Allocated memory is still 92.3MB. Free memory was 50.5MB in the beginning and 48.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:46:07,167 INFO L158 Benchmark]: Boogie Preprocessor took 27.24ms. Allocated memory is still 92.3MB. Free memory was 48.7MB in the beginning and 47.3MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 05:46:07,167 INFO L158 Benchmark]: RCFGBuilder took 570.10ms. Allocated memory is still 92.3MB. Free memory was 47.2MB in the beginning and 48.2MB in the end (delta: -1.0MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2024-12-06 05:46:07,167 INFO L158 Benchmark]: CodeCheck took 2850.01ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 48.2MB in the beginning and 60.4MB in the end (delta: -12.3MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2024-12-06 05:46:07,168 INFO L158 Benchmark]: Witness Printer took 3.41ms. Allocated memory is still 134.2MB. Free memory was 60.4MB in the beginning and 60.4MB in the end (delta: 36.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:46:07,169 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, 67 locations, 30 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 243 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 132 mSDsluCounter, 327 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 191 mSDsCounter, 84 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 296 IncrementalHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 84 mSolverCounterUnsat, 136 mSDtfsCounter, 296 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 390 GetRequests, 344 SyntacticMatches, 4 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 240 SizeOfPredicates, 6 NumberOfNonLiveVariables, 244 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 531]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 531. Possible FailurePath: [L532] int flag = 1; [L533] List a = (List) malloc(sizeof(struct node)); [L534] COND FALSE !(a == 0) [L535] List t; [L536] List l1; [L537] List l2; [L538] List b; [L539] List u; [L540] List p = a; VAL [a={3:0}, flag=1, p={3:0}] [L541] COND FALSE !(__VERIFIER_nondet_int()) [L554] p->h = 3 VAL [a={3:0}, flag=1] [L555] EXPR a->h VAL [a={3:0}, flag=1] [L555] COND TRUE a->h == 3 [L555] return 0; VAL [\result=0, a={3:0}, flag=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 83.9MB. Free memory is still 48.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 343.92ms. Allocated memory is still 92.3MB. Free memory was 68.7MB in the beginning and 50.5MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.50ms. Allocated memory is still 92.3MB. Free memory was 50.5MB in the beginning and 48.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.24ms. Allocated memory is still 92.3MB. Free memory was 48.7MB in the beginning and 47.3MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 570.10ms. Allocated memory is still 92.3MB. Free memory was 47.2MB in the beginning and 48.2MB in the end (delta: -1.0MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. * CodeCheck took 2850.01ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 48.2MB in the beginning and 60.4MB in the end (delta: -12.3MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. * Witness Printer took 3.41ms. Allocated memory is still 134.2MB. Free memory was 60.4MB in the beginning and 60.4MB in the end (delta: 36.9kB). 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 05:46:07,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3043580-528e-4055-a777-900a3f241144/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